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RESTLESS LEGS SYNDROME:<br />

Diagnosis and Treatment Strategies for the Primary Care Provider<br />

Consensus Re<strong>com</strong>mendations From an Expert Panel Vol 5(2): May 2004<br />

CME Overview<br />

Learning Objectives<br />

Upon <strong>com</strong>pletion of this activity, participants should be able to:<br />

✦ Elicit pertinent information that can aid in diagnosis of<br />

restless <strong>legs</strong> <strong>syndrome</strong> (RLS) when taking a patient’s history.<br />

✦ Diagnose RLS using the 4 essential diagnostic criteria.<br />

✦ Appropriately prescribe and titrate pharmacologic agents<br />

to treat RLS based on efficacy and tolerability profiles.<br />

✦ Implement nonpharmacologic strategies to manage RLS.<br />

✦ Seek referral to or consultation with a specialist in<br />

appropriate RLS cases.<br />

✦ Educate patients on RLS and provide sources for additional<br />

information.<br />

Credit Designation<br />

Scienta Healthcare Education ® designates this educational activity for<br />

a maximum of 1.5 category 1 credits toward the AMA Physician’s<br />

Recognition Award. Each physician should claim only those credits that<br />

he/she actually spent in the activity. Expiration: December 31, 2005.<br />

This activity has been reviewed and is acceptable for up to 1.5<br />

Prescribed credits by the American Academy of Family Physicians. 1.5 of<br />

these credits conform to AAFP criteria for evidence-based CME clinical<br />

content. Term of approval is for one year from beginning distribution date<br />

of May 15, 2004 with option for yearly renewal. When reporting CME<br />

credit, AAFP members should report total Prescribed and Elective credit<br />

earned for this activity. It is not necessary for members to label credit as<br />

evidence-based CME Prescribed or Elective for CME reporting purposes.<br />

Accreditation<br />

Scienta Healthcare Education ® is accredited by the Accreditation<br />

Council for Continuing Medical Education (ACCME) to sponsor continuing<br />

medical education for physicians.<br />

Sponsorship<br />

Cosponsored by the Illinois Academy of Family Physicians/Family<br />

Practice Education Network and Scienta Healthcare Education ® .<br />

EXPERT PANEL<br />

Charles Adler, MD, PhD<br />

Professor of Neurology<br />

Chair, Division of Movement Disorders<br />

Mayo Clinic College of Medicine and<br />

Mayo Clinic, Scottsdale<br />

Scottsdale, AZ<br />

Richard Allen, PhD<br />

Research Associate<br />

Department of Neurology<br />

Founder, Johns Hopkins Sleep<br />

Disorders Center<br />

Johns Hopkins Bayview Medical Center<br />

Baltimore, MD<br />

Introduction<br />

W. Lane Edwards, Jr, MSN, ARNP, ANP<br />

Nurse Practitioner, Internal Medicine<br />

Lee Physician Group<br />

Lee Memorial Health System<br />

Fort Myers, FL<br />

Mary P. Ettari, MPH, PA-C<br />

Certified Physician Assistant<br />

Medical Partners of Martin County<br />

Stuart, FL<br />

William G. Ondo, MD<br />

Associate Professor<br />

Department of Neurology<br />

Baylor College of Medicine<br />

Houston, TX<br />

RLS is a clinically significant movement disorder that <strong>com</strong>monly<br />

presents to the primary care provider as a sleep disturbance.<br />

Although the disease was first characterized more than 60 years<br />

ago, current understanding of the diagnosis and treatment of<br />

RLS is based largely on research conducted within the past<br />

decade. 1 The first clinical guidelines for treatment of RLS<br />

were published by the American Academy of Sleep Medicine<br />

in 1999. 2 In 2000, the National Center on Sleep Disorders<br />

Research and Office of Prevention, Education, and Control of<br />

the National Heart, Lung, and Blood Institute published<br />

guidelines for the management of RLS in the primary care<br />

Penny Tenzer, MD<br />

Vice Chair and Residency Program Director<br />

Department of Family Medicine and<br />

Community Health<br />

University of Miami School of Medicine<br />

Miami, FL<br />

Ray Watts, MD<br />

Professor and Chair<br />

Department of Neurology<br />

University of Alabama School of Medicine<br />

Birmingham, AL


setting. 3 The National Institutes of Health, in collaboration<br />

with members of the International <strong>Restless</strong> Legs Syndrome<br />

Study Group, updated RLS diagnostic criteria and established<br />

standardized questions for epidemiological studies of RLS in<br />

2003. 4 Furthermore, the <strong>Restless</strong> Legs Syndrome Foundation<br />

(www.rls.org) has established an online updated medical<br />

bulletin that covers relevant medical issues associated<br />

with RLS.<br />

Despite new guidelines and diagnostic criteria, however, RLS<br />

is not foremost in the minds of most healthcare providers.<br />

Needs assessment data reveal that many primary care<br />

providers remain uninformed about RLS and its treatment. In<br />

2004, the Family Practice Education Network (FPEN), coordinated<br />

by the Illinois Academy of Family Physicians (<strong>IAFP</strong>) and<br />

Scienta Healthcare Education ® , assembled<br />

a panel of experts in the management<br />

of RLS. After reviewing established<br />

guidelines, the current medical<br />

literature, and their own clinical<br />

experiences, the panel formulated<br />

re<strong>com</strong>mendations for primary<br />

care providers regarding RLS<br />

diagnosis and treatment.<br />

Although RLS is <strong>com</strong>monly<br />

encountered in the primary<br />

care setting, it is generally not<br />

a first-line consideration in the<br />

differential diagnosis for sleep<br />

<strong>com</strong>plaints. Thus, it is often inadequately<br />

diagnosed. In some cases, patients<br />

with symptoms of RLS are misdiagnosed with<br />

insomnia or anxiety, resulting in ineffective treatments.<br />

In other cases, RLS patients remain undiagnosed and are<br />

inappropriately referred to a variety of specialists. Accurate<br />

diagnosis and treatment of RLS is further confounded by the<br />

fact that RLS symptoms are difficult to articulate.<br />

Because most RLS sufferers will initially consult a primary<br />

care provider for their symptoms, the primary care provider<br />

has a central role in the diagnosis and treatment of RLS. For<br />

most patients, RLS can be managed effectively in the primary<br />

care setting. Primary care providers’ long-term relationships<br />

with their patients and familiarity in managing multiple<br />

aspects of healthcare uniquely position them to offer unparalleled<br />

patient education and support. These consensus re<strong>com</strong>mendations<br />

will review the current RLS literature, highlight<br />

diagnostic approaches and treatment options, and discuss<br />

how to educate and support RLS patients in the<br />

primary care setting. This guideline offers the healthcare<br />

provider a succinct, stepwise, and proactive strategy to<br />

manage RLS.<br />

2<br />

RLS Epidemiology and Impact<br />

on Quality of Life<br />

Despite being a <strong>com</strong>mon movement disorder and a cause of<br />

sleep loss, RLS is often underdiagnosed. 1,2,5 RLS is the second<br />

or third most <strong>com</strong>mon sleep disorder; although estimates<br />

vary, recent surveys suggest that RLS may affect 10% to<br />

15% of the general population. 5,6 Standardized epidemiological<br />

data are currently in<strong>com</strong>plete, but preliminary surveys indicate<br />

that prevalence increases with age 7 and appears to be higher<br />

among women than men. 7-9 Onset of symptoms can occur at<br />

any age. However, the phenotype in children may differ from<br />

that seen in adults and may be confused with attention<br />

deficit disorder or “growing pains.” RLS is a progressive<br />

disorder, and severity usually increases with age, 10 although<br />

remissions may occur. Diagnosis often occurs during middle<br />

age, when symptoms have progressed sufficiently for<br />

the patient to seek medical advice. Patients whose<br />

symptoms appear before age 45 are more<br />

likely to exhibit a family history of<br />

RLS and experience a more indolent<br />

onset. Those with onset<br />

beyond age 50 often have a<br />

more rapid progression with<br />

age and are less likely to<br />

demonstrate a family history of<br />

the condition. 10<br />

Sleep disturbance is a major<br />

<strong>com</strong>orbidity of RLS and is<br />

often the primary reason that<br />

the patient seeks medical attention.<br />

When severe, RLS produces the<br />

most extreme chronic sleep loss of any<br />

sleep disorder, and severely affected RLS<br />

patients routinely sleep only a few hours per night.<br />

While the severity of symptoms varies widely, RLS may<br />

impact quality of life dramatically, for both patients and their<br />

bed partners. In addition to disrupting sleep, RLS may contribute<br />

to daytime and evening dis<strong>com</strong>fort and an inability to<br />

sit still, thereby affecting activities such as meetings and<br />

airplane rides. Moreover, people with RLS suffer the consequences<br />

of sleep loss, including difficulties with attention<br />

and cognitive focus. Thus, RLS may affect work, social, and<br />

leisure activities.<br />

Primary and Secondary Causes of RLS<br />

Primary Causes. Genetic predisposition appears to be a factor,<br />

particularly for patients with an onset of RLS symptoms<br />

early in life (eg, before age 45). 10-12 Slightly more than half of<br />

reported cases of RLS indicate a familial occurrence of the


disorder, 4 with the presentation following an autosomal dominant<br />

pattern. 13 Several possible loci, including chromosomes<br />

12q 14 and 14q, 13 have been linked to RLS. Analysis of available<br />

studies suggests that a person with RLS is 3 to 6 times more<br />

likely to have a family history of the disorder than a person<br />

who does not have RLS. 4 Environmental factors may also<br />

play a role.<br />

Secondary Causes. Symptoms of RLS may be associated<br />

with or exacerbated by medications 15 or by several secondary<br />

conditions, including iron deficiency, 16,17 pregnancy, 18 end-stage<br />

renal disease, 19 and peripheral neuropathy 20 (see treatment<br />

section for details). Secondary RLS often remits when the<br />

specific secondary condition is resolved, such as through<br />

childbirth 18 or renal transplant. 21<br />

Diagnosing RLS: The 4 Essential Criteria<br />

RLS is characterized by an urge to move the <strong>legs</strong> that is<br />

partially or totally relieved by movement and is often associated<br />

with a series of unpleasant sensory features. Patients with<br />

RLS will often speak of sensations deep within the leg<br />

muscles, described variously as “creepy,” “crawly,” “like<br />

worms or bugs crawling in the muscle,” or “soda bubbling in<br />

the veins.” 4 Although these descriptions may vary, they will<br />

usually be associated with an urge to move. While this<br />

dis<strong>com</strong>fort usually affects both <strong>legs</strong> simultaneously, it may be<br />

unilateral, alternate between the <strong>legs</strong>, or include the arms. 22<br />

Although RLS symptoms vary widely in severity and<br />

frequency (eg, from occasionally to daily), most RLS patients<br />

who seek treatment experience daily or nearly daily symptoms.<br />

Four criteria are essential to diagnose RLS (Table 1). 4 Each<br />

criterion is subsequently described in more detail.<br />

Table 1. The 4 Essential Diagnostic Criteria for RLS*<br />

✓ An urge to move the limbs that is often ac<strong>com</strong>panied<br />

or caused by un<strong>com</strong>fortable or unpleasant sensations<br />

in the <strong>legs</strong><br />

✓ The urge to move or unpleasant sensations begin<br />

or worsen during periods of rest or inactivity<br />

✓ Symptoms may be partially or totally relieved by<br />

movement (eg, walking or stretching), at least for<br />

the duration of the activity<br />

✓ Symptoms either occur exclusively or worsen<br />

during the evening or night<br />

* All must be present for diagnosis.<br />

An urge to move the <strong>legs</strong>, usually ac<strong>com</strong>panied or caused by<br />

un<strong>com</strong>fortable or unpleasant sensations in the <strong>legs</strong>. This is<br />

the key feature of RLS. The urge to move the <strong>legs</strong> may be<br />

present without any clearly identified sensation and may<br />

include the arms. However, RLS is not to be confused with<br />

fidgeting or habitual repetitive movement, such as foot tapping.<br />

The urge to move begins or worsens during periods of rest<br />

or inactivity. Two aspects of rest, physical immobility and<br />

decreased central nervous system activity that supports<br />

alertness, may be implicated in the onset of symptoms. 23 RLS<br />

is not triggered by a specific body position during rest.<br />

However, more restful positions and a longer duration of rest<br />

increase the likelihood of symptoms.<br />

Symptoms may be partially or totally relieved by movement<br />

(eg, walking or stretching), at least for the duration of the<br />

activity. Patients with RLS often describe a rapid relief of<br />

symptoms as a result of movement, although the relief may or<br />

may not be <strong>com</strong>plete. As the disease progresses, the amount<br />

of relief obtained through movement may diminish; more<br />

movement may be required for relief of severe RLS.<br />

Symptoms either occur exclusively or worsen during the<br />

evening or night. Several studies have demonstrated a peak<br />

in RLS restlessness in the hours immediately after<br />

midnight and a nadir in the late morning hours. 24,25 In cases of<br />

severe RLS, dis<strong>com</strong>fort may occur continuously, although<br />

patients will recall nocturnal severity as a feature of an<br />

earlier stage of disease development.<br />

Diagnosing RLS: Asking the Right Questions<br />

Because of the relatively unusual sensations associated with<br />

RLS, many patients have difficulty expressing their symptoms<br />

accurately. As a result of this suboptimal <strong>com</strong>munication,<br />

there is a tendency to diagnose RLS via a process of exclusion,<br />

ie, RLS is diagnosed only after other possibilities have been<br />

disproved. However, this diagnosis-of-exclusion approach<br />

should be abandoned, and the primary care provider must<br />

seek an unequivocal and clear diagnosis of RLS by <strong>com</strong>pleting<br />

a sleep review (Appendix A) with all patients who present with<br />

a sleep <strong>com</strong>plaint. If RLS is suspected, it is essential to ask the<br />

right questions as they apply to the 4 essential RLS diagnostic<br />

criteria (Table 2). Sleep studies are not necessary to diagnose<br />

RLS; patients who answer “yes” to the 4 questions in Table 2<br />

are likely to have RLS. An algorithm for the diagnosis of RLS is<br />

provided in Figure 1.<br />

To assess the severity of RLS, the primary care provider<br />

should consider the frequency and overall severity of the<br />

symptoms. These 2 factors will guide treatment decisions.<br />

It may also be useful to use the International <strong>Restless</strong><br />

Legs Syndrome Study Group Rating Scale 26 prior to and<br />

3


4<br />

Figure 1. Diagnosis Algorithm<br />

Difficulty sleeping and/or daytime sleepiness<br />

Unusual sensations in <strong>legs</strong> relieved<br />

by movement<br />

Painful sensations in <strong>legs</strong> at night<br />

Take history<br />

Take history<br />

Take history<br />

Conduct a sleep review of symptoms to<br />

assess cause (see Appendix A)<br />

Conduct neurologic exam<br />

Are responses suggestive of RLS?<br />

Ask 4 key RLS questions<br />

No Yes<br />

Is there evidence of neuropathy?<br />

No<br />

Yes<br />

Consider other sleep disorders: sleep deprivation,<br />

insomnia, drug-induced insomnia, obstructive<br />

sleep apnea, or circadian rhythm disorder<br />

Did patient answer “yes” to all 4 questions?<br />

Evaluate and treat neuropathy<br />

and ask 4 key RLS questions<br />

Yes<br />

Diagnose RLS and treat using<br />

treatment algorithm


Figure 2. Suggested Treatment Algorithm<br />

Patient diagnosed with RLS<br />

Symptom Profile<br />

Nightly 3-5 times/week


during treatment to evaluate treatment benefit. This wellvalidated<br />

scale has been used in treatment studies, 27 and<br />

up-dated versions of the scale are available online from the<br />

MAPI Research Institute (www.mapi-research-inst.<strong>com</strong>).<br />

RLS and Periodic Limb Movements in Sleep<br />

(PLMS) and Waking (PLMW)<br />

Many RLS patients also experience periodic limb movement<br />

disorder (PLMD), which may be manifested as periodic limb<br />

movements in sleep (PLMS) and in waking (PLMW). 1<br />

Approximately 85% of RLS patients also experience PLMS, 4<br />

and the finding of PLMS supports a diagnosis of RLS. PLMS,<br />

however, also <strong>com</strong>monly occurs independently, especially in<br />

the elderly. Characteristics of PLMS include the following:<br />

6<br />

Table 2. Key Questions for Patients<br />

Who May Have RLS<br />

✦ Do you feel an urge to move your <strong>legs</strong>, usually<br />

ac<strong>com</strong>panied or caused by un<strong>com</strong>fortable and<br />

unpleasant sensations in the <strong>legs</strong>?<br />

✦ Does this urge to move begin or worsen when you<br />

lie down, rest, or are inactive?<br />

✦ Is the urge to move partially or totally relieved by walking<br />

or stretching, as long as the movement continues?<br />

✦ Are your symptoms worse in the evening or at night,<br />

or do they only occur during the evening or the night?<br />

✦ Involuntary, stereotypic, slow leg and hip movements<br />

(0.5 to 5 seconds in duration) while asleep<br />

✦ Movements occur periodically (usually every 20 to<br />

40 seconds)<br />

✦ Movements can be associated with awakenings<br />

and arousal<br />

✦ PLMS are nonspecific and may occur in isolation<br />

or with narcolepsy, REM (rapid eye movement)<br />

sleep behavior disorder, or sleep apnea<br />

PLMW may also occur for RLS patients. These movements<br />

are less <strong>com</strong>mon for elderly patients and are therefore more<br />

specific for the diagnosis of RLS. However, the sensitivity of this<br />

measure is not known. PLMW may occur during the night, when<br />

the patient lies awake in bed, or in the evening, when the patient<br />

is lying down or seated with <strong>legs</strong> outstretched.<br />

Treatment Options<br />

Iron Supplementation. Patients with RLS often have a<br />

decreased level of ferritin and an elevated level of transferrin<br />

in their cerebrospinal fluid. 17 Furthermore, a low serum<br />

ferritin level (


These dopaminergic agents may be recognized by primary<br />

care providers as the gold standard for treatment of<br />

Parkinson’s disease, in which relatively large doses are<br />

administered to control motor abnormalities caused by loss<br />

of nigrostriatal dopaminergic neurons. In contrast, relatively<br />

small doses of these agents are used to treat RLS, thus minimizing<br />

the side effects. It is therefore important that primary<br />

care providers not base their decisions to use these agents<br />

for RLS solely on their prior experience using them for<br />

Parkinson’s disease.<br />

Long-term use of levodopa, and possibly the dopamine agonists,<br />

promotes augmentation of RLS symptoms. With augmentation,<br />

symptoms begin to appear progressively earlier in<br />

the day and may be<strong>com</strong>e more severe. Augmentation has<br />

been reported in approximately 80% of patients who take levodopa,<br />

31 although the process appears to be associated<br />

much less frequently with dopamine agonists. 27, 32-34 It must be<br />

noted, however, that the dopamine agonists have not been<br />

investigated as fully as levodopa in long-term clinical trials.<br />

Table 3. Drugs Used to Treat RLS 28<br />

Levodopa’s rapid onset of action (15 to 20 minutes) makes it<br />

ideal for intermittent usage when symptoms occur only<br />

occasionally, as augmentation is unlikely in this scenario. For<br />

patients with daily symptoms, however, a dopamine agonist<br />

is suggested as first-line treatment.<br />

Sedative-Hypnotic Agents. This class of drugs represents an<br />

option if dopaminergic agents are unsuitable. However, at<br />

present, there are few data to evaluate the efficacy of these<br />

agents for RLS. Sedative-hypnotic agents may be used in <strong>com</strong>bination<br />

with the aforementioned agents if sleep initiation<br />

remains problematic despite relief of the sensory symptoms of<br />

RLS. It must be noted that these agents mask the symptoms<br />

of RLS but do not treat the underlying causes of the disease.<br />

There are no data available that demonstrate augmentation<br />

with sedative-hypnotic agents, although tolerance may<br />

develop. The potential for abuse, morning drowsiness, and an<br />

increased risk of falls during the night should be considered<br />

when prescribing these medications for RLS.<br />

Agent Initial Dose Re<strong>com</strong>mended Maximum Daily Dose Serum Half-life Common Side Effects<br />

(at levels indicated for<br />

Parkinson’s Disease)<br />

Dopaminergic Agents<br />

Levodopa (Dopar ® ,<br />

Larodopa ® )<br />

Ropinirole*<br />

(Requip ® )<br />

Pergolide*<br />

(Permax ® )<br />

Pramipexole*<br />

(Mirapex ® )<br />

Sedative-Hypnotic Agents<br />

Clonazepam<br />

(Klonopin ® )<br />

Oxazepam<br />

(Serax ® )<br />

Zaleplon<br />

(Sonata ® )<br />

Zolpidem<br />

(Ambien ® )<br />

Triazolam<br />

(Halcion ® )<br />

50 mg<br />

0.25 mg<br />

0.025 mg<br />

0.125 mg<br />

0.25 mg<br />

10 mg<br />

5 mg<br />

5 mg<br />

0.125 mg<br />

200 mg at bedtime<br />

4 mg in divided doses (evening and<br />

bedtime)<br />

0.5 mg in divided doses (evening and<br />

bedtime)<br />

1.5 mg in divided doses (evening and<br />

bedtime)<br />

2 mg at bedtime<br />

40 mg at bedtime<br />

20 mg at bedtime<br />

20 mg at bedtime<br />

0.5 mg at bedtime<br />

1.5-2 h<br />

6-8 h †<br />

2-16 h<br />

8-10 h ‡<br />

30-40 h<br />

5-10 h<br />

1 h †<br />

1.6 h †<br />

2-4 h<br />

Nausea, vomiting, augmentation<br />

of symptoms, sedation<br />

Same as for levodopa, plus<br />

nasal congestion and fluid<br />

retention<br />

Same as for ropinirole<br />

Same as for ropinirole<br />

Tolerance, sedation<br />

Tolerance, sedation<br />

Tolerance, sedation<br />

Tolerance, sedation<br />

Tolerance, sedation<br />

7


Anticonvulsants. Two agents, carbamazepine 35 and<br />

gabapentin, 36 have shown efficacy for RLS treatment.<br />

Although gabapentin has not been evaluated for long-term<br />

<strong>com</strong>plications such as augmentation, the Expert Panel re<strong>com</strong>mends<br />

it as the preferred anticonvulsant agent for its tolerability<br />

and safety. The Expert Panel also concurred that<br />

gabapentin is a suitable choice for second- or third-line therapy<br />

and can be considered as a first-line agent for patients<br />

who report pain as a major symptom of RLS.<br />

Opioids. Opioids are effective second- or third-line agents for<br />

RLS patients who report frequent or nightly symptoms. They<br />

can also be considered as a first-line treatment for patients<br />

who report pain as a symptom of their RLS. Dependence and<br />

8<br />

Table 3. Drugs Used to Treat RLS 28 (cont)<br />

tolerance may occur with opiate use, but there are no data<br />

available that demonstrate augmentation with these agents.<br />

Nonpharmacologic Strategies. In contrast to most other<br />

sleep disorders, RLS does not respond to typical sleep<br />

hygiene. Instead, the condition may be resolved, at least temporarily,<br />

by intense tactile stimulation or mental activity.<br />

Lifestyle patterns that promote engrossing mental or physical<br />

activity during daytime hours may reduce the need for medicine<br />

until late evening. Other strategies, such as leg vibration,<br />

massage, and hot baths, may also help alleviate symptoms.<br />

In some cases, the avoidance of caffeine and alcohol<br />

may also help to reduce symptoms.<br />

Agent<br />

Anticonvulsants<br />

Initial Dose Re<strong>com</strong>mended Maximum Daily Dose Serum Half-life Common Side Effects<br />

(at levels indicated for<br />

Parkinson’s Disease)<br />

Gabapentin<br />

(Neurontin ® )<br />

Carbamazepine §<br />

(Tegretol ® )<br />

Opioids<br />

Propoxyphene<br />

(Darvon ® )<br />

Hydrocodone<br />

(Vicodin ® )<br />

Codeine<br />

Tramadol<br />

(Ultram ® )<br />

Oxycodone<br />

(OxyContin ® )<br />

Oxycodone-XR<br />

Methadone*<br />

(Dolophine ® ,<br />

Methadose ® )<br />

Morphine<br />

Sulphate-XR<br />

(RoxanolTM )<br />

100-300 mg §<br />

200 mg<br />

100-200 mg<br />

5 mg<br />

30 mg<br />

50 mg<br />

5 mg<br />

10 mg<br />

2.5 mg<br />

15 mg<br />

3600 mg in 2-3 divided doses §<br />

800 mg in 2-3 divided doses<br />

600 mg in 2-3 divided doses<br />

20-30 mg in 2-3 divided doses<br />

180 mg in 2-3 divided doses<br />

300 mg in 2-3 divided doses<br />

20-30 mg in 2-3 divided doses<br />

20-30 mg in 2-3 divided doses<br />

20 mg in 2 divided doses<br />

30-45 mg in 2-3 divided doses<br />

* Administer at least 2 h before bedtime or anticipated onset of symptoms.<br />

† Possibly longer with hepatic dysfunction.<br />

‡ Possibly longer with renal dysfunction.<br />

§ Expert Panel re<strong>com</strong>mendation.<br />

Adapted with permission in 2004 from Earley CJ. Clinical practice: restless <strong>legs</strong> <strong>syndrome</strong>. N Engl J Med. 2003;348:2103-2109.<br />

Copyright © 2003, Massachusetts Medical Society. All rights reserved.<br />

5-7 h ‡<br />

6 h<br />

6-12 h †<br />

3 h †<br />

2.5-3 h †<br />

5-8 h †‡<br />

3 h ‡<br />

12 h ‡<br />

16-22 h †<br />

4 h †<br />

Sedation, dizziness, fatigue,<br />

ataxia, somnolence<br />

Hyponatremia, sedation, liver<br />

function test abnormalities<br />

Sedation, pruritis, constipation,<br />

nausea, dry mouth,<br />

dependence<br />

Same as for propoxyphene<br />

Same as for propoxyphene<br />

Same as for propoxyphene<br />

and augmentation<br />

Same as for propoxyphene<br />

Same as for propoxyphene<br />

Same as for propoxyphene<br />

Same as for propoxyphene


Medications That Exacerbate RLS. Dopamine antagonists<br />

(eg, antipsychotics, emetics, gastric-motility agents) and<br />

several <strong>com</strong>mon over-the-counter medications may exacerbate<br />

RLS symptoms. A list of medications that may cause or<br />

exacerbate RLS is provided in Table 4.<br />

Table 4. Medications That May Cause or<br />

Exacerbate RLS<br />

✦ Antihistamines<br />

✦ Dopamine antagonists (including nausea medications)<br />

✦ Tricyclic antidepressants<br />

✦ Lithium<br />

✦ Selective serotonin reuptake inhibitors<br />

Dosing and Titrating Drugs for RLS<br />

Because there are few formal data and no published titration<br />

guidelines for RLS medications, the primary care<br />

provider must design an individual treatment regimen for<br />

each RLS patient. However, a few guiding principles can be<br />

employed. Symptoms should be treated as necessary, eg,<br />

nightly symptoms may require daily treatment, whereas<br />

intermittent symptoms should be treated as often as is necessary.<br />

Dosing should <strong>com</strong>mence 1 to 2 hours before the<br />

anticipated onset of symptoms. Timing of subsequent doses<br />

to ensure coverage throughout the night should be based on<br />

the half-life of the selected agent. Beginning with the initial<br />

dose (Table 3), a medication should be titrated until symp-<br />

toms remit or the maximum daily dose is reached. The<br />

effects of these drugs on RLS are almost immediate, so the<br />

efficacy of a dosing regimen can usually be evaluated within<br />

several days. Gradual upward titration of the dose will<br />

therefore allow the primary care provider to assess<br />

response. The International <strong>Restless</strong> Legs Syndrome Study<br />

Group Rating Scale may be used to establish the relative<br />

success of a dosing schedule.<br />

Medications should be rotated in patients who do not<br />

respond to the first-line agent at its maximal daily dose. If<br />

monotherapy is not <strong>com</strong>pletely successful, the healthcare<br />

provider can also consider <strong>com</strong>bining drugs from the different<br />

classes of agents. Any patient whose symptoms do not<br />

remit after several agents have been administered at their<br />

maximal daily doses should be referred to a neurologist.<br />

Educating Patients About RLS<br />

Because of the unusual symptoms of RLS and potential fears<br />

of Parkinson’s disease, many patients with RLS feel uneasy<br />

when seeking treatment. As a result, the healthcare provider<br />

should educate the patient about the etiology of RLS. The<br />

Expert Panel re<strong>com</strong>mends that healthcare providers discuss<br />

the following principles with RLS patients:<br />

✦ RLS and Parkinson’s disease are distinct disorders,<br />

although they have <strong>com</strong>mon treatment modalities<br />

✦ RLS is not a precursor to Parkinson’s disease, and<br />

RLS patients do not have increased risk for<br />

Parkinson’s disease<br />

✦ RLS is a manageable condition<br />

✦ Difficulty in articulating symptoms is <strong>com</strong>mon for<br />

RLS patients<br />

✦ RLS is a physical condition, not a mental disorder<br />

Several online resources are available to inform and educate<br />

providers and patients who wish to learn more about RLS. A<br />

list of organizations and their resources is provided in Table 5.<br />

In addition to serving as a patient support group for RLS sufferers,<br />

the <strong>Restless</strong> Legs Syndrome Foundation provides an<br />

annually updated RLS medical bulletin and a regular online<br />

newsletter for persons with RLS.<br />

9


Conclusion<br />

RLS is a <strong>com</strong>mon, but often inadequately diagnosed and<br />

treated, movement disorder that can usually be well managed<br />

in the primary care setting. Diagnosis of RLS and selection<br />

of the appropriate treatment depend on the primary care<br />

provider’s asking the correct questions regarding the characteristics,<br />

frequency, and quality of a patient’s symptoms.<br />

By doing so, the healthcare provider can design an individualized<br />

treatment regimen to <strong>com</strong>bat this disturbing disorder,<br />

thereby enhancing the RLS patient’s quality of life, both during<br />

sleeping and waking hours.<br />

10<br />

Table 5. Online RLS Resources for Patients and Providers<br />

Organization Contact Information Resources<br />

<strong>Restless</strong> Legs Syndrome Foundation<br />

Worldwide Education & Awareness for<br />

Movement Disorders (WE MOVE)<br />

National Institute of Neurological Disorders<br />

and Stroke (NINDS), National Institutes of<br />

Health<br />

www.rls.org<br />

(507-287-6465)<br />

www.wemove.org<br />

(800-437-6682)<br />

www.ninds.nih.gov<br />

(800-352-9424)<br />

Appendix A. Suggested Questions Following a Sleep Complaint 37<br />

✦ When did the problem begin?<br />

(To determine acute versus chronic insomnia)<br />

✦ Does the patient have a psychiatric or medical condition<br />

that may cause insomnia?<br />

✦ Is the sleep environment conducive to sleep?<br />

(Relates to noise, interruptions, temperature, light)<br />

✦ Does the patient report “creeping,” “crawling,” or<br />

“un<strong>com</strong>fortable, difficult-to-describe feelings” in the<br />

<strong>legs</strong> or arms that are relieved by movement?<br />

(Relates to RLS)<br />

✦ Does the bed partner report that the patient's <strong>legs</strong> or<br />

arms jerk during sleep?<br />

(Relates to periodic limb movements of sleep)<br />

Acknowledgements<br />

The Illinois Academy of Family Physicians and Scienta<br />

Healthcare Education ® developed this program for the Family<br />

Practice Education Network. The Academy thanks<br />

GlaxoSmithKline Pharmaceuticals for providing an educational<br />

grant for this program. We also thank Charles A.<br />

Goldthwaite, Jr, PhD, for his writing and editorial expertise in<br />

developing this document.<br />

✦ Patient support services<br />

✦ Annual medical bulletin<br />

✦ Quarterly newsletter<br />

✦Case studies and online<br />

courses<br />

✦ Information about RLS and<br />

movement disorders for<br />

patients, caregivers, and<br />

healthcare professionals<br />

✦ Publications<br />

✦ Current research<br />

✦ Does the patient snore loudly, gasp, choke, or stop<br />

breathing during sleep?<br />

(Relates to obstructive sleep apnea)<br />

✦ Is the patient a shift worker? What are the work hours?<br />

(Relates to circadian sleep disorders/sleep deprivation)<br />

✦ At what times does the patient go to bed and get up on<br />

weekdays and weekends?<br />

(Relates to poor sleep hygiene and sleep deprivation)<br />

✦ Does the patient use caffeine, tobacco, or alcohol? Does<br />

the patient take over-the-counter or prescription medications,<br />

such as stimulating antidepressants, steroids,<br />

decongestants, or beta-blockers?<br />

(Relates to substance-induced insomnia)<br />

Portions reprinted with permission from Table 1. <strong>Restless</strong> <strong>legs</strong> <strong>syndrome</strong>: detection and management in primary care. Am Fam Physician. 2000;62(1):108-114.<br />

Copyright AAFP. All rights reserved.


Faculty Disclosures<br />

The Illinois Academy of Family Physicians adheres to the<br />

conflict-of-interest policy of the American Academy of<br />

Family Physicians as well as to the guidelines of the<br />

Accreditation Council for Continuing Medical Education and<br />

the AMA. Current guidelines state that participants in CME<br />

activities should be made aware of any affiliation or financial<br />

interest that may affect an author’s article. The members of<br />

this Expert Panel have <strong>com</strong>pleted conflict-of-interest statements.<br />

Disclosures do not suggest bias, but provide readers<br />

with information relevant to evaluation of contents of these<br />

guidelines.<br />

Charles Adler, MD, PhD, serves as a consultant for and has<br />

received research support from GlaxoSmithKline, Pharmacia<br />

Corporation, and Elan Pharmaceuticals, Inc. Richard Allen,<br />

PhD, has received travel support from and has served as a<br />

consultant for GlaxoSmithKline, Pfizer, and Boehringer<br />

Ingleheim. Mary P. Ettari, MPH, PA-C, is a consultant for and<br />

serves on the speakers bureau for GlaxoSmithKline. William<br />

G. Ondo, MD, has received grant support from<br />

GlaxoSmithKline within the previous 12 months. Raymond<br />

Watts, MD, serves as a consultant for and has received<br />

research support from GlaxoSmithKline and Pfizer. W. Lane<br />

Edwards, Jr, MSN, ARNP, ANP, and Penny Tenzer, MD, report<br />

no conflicts of interest.<br />

11


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Fam Physician. 2002;62:108-114.<br />

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Upon <strong>com</strong>pletion of this CME activity, participants may<br />

request AMA PRA category 1 credit, AFP Prescribed credit,<br />

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<strong>com</strong>plete both sides of the evaluation/posttest form and<br />

return it to Scienta Healthcare Education ® in the enclosed<br />

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12

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