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Module 3: The Drug Regimen Review - College of Pharmacy ...

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Tricyclic<br />

antidepressants<br />

(TCAs), e.g., <br />

amitriptyline<br />

amoxapine<br />

doxepin<br />

combinationproduc<br />

ts, e.g., o<br />

amitriptyline and<br />

chlordiazepoxide o<br />

amitripytline and<br />

perphenazine<br />

Antidiabetic Medications<br />

Insulin and oral<br />

hypoglycemics, e.g., <br />

acarbose<br />

acetohexamide<br />

chlorpropamide<br />

glimepiride<br />

glipizide<br />

glyburide<br />

Metformin<br />

repaglinide<br />

rosiglitazone<br />

tolazamide<br />

tolbutamideIncluding<br />

combination products,<br />

e.g.,<br />

rosiglitazone/metformin<br />

<br />

glyburide/metformin<br />

glipizide/metformin <br />

pioglitazone/metformin<br />

selegiline (MAO-B inhibitors) utilized for<br />

Parkinson’s Disease, unless used in doses greater<br />

than 10 mg per day<br />

Interactions<br />

Should not be administered together or in rapid<br />

succession with other MAO inhibitors, tricyclic<br />

antidepressants, bupropion, SSRIs, buspirone,<br />

sympathomimetics, meperidine, triptans, and other<br />

medications that affect serotonin or<br />

norepinephrine<br />

Indications<br />

Because <strong>of</strong> strong anticholinergic and sedating<br />

properties, TCAs and combination products are<br />

rarely the medication <strong>of</strong> choice in older<br />

individuals<br />

Exception: Use <strong>of</strong> TCAs may be appropriate<br />

if:<br />

o <strong>The</strong> resident is being treated for<br />

neurogenic pain (e.g., trigeminal<br />

neuralgia, peripheral neuropathy),<br />

based on documented evidence to<br />

support the diagnosis; and<br />

o <strong>The</strong> relative benefits outweigh the risks<br />

and other, safer agents including non-<br />

pharmacological interventions or<br />

alternative therapies are not indicated<br />

or have been considered, attempted, and<br />

failed<br />

Adverse Consequences<br />

Compared to other categories <strong>of</strong> antidepressants,<br />

TCAs cause significant anticholinergic side effects<br />

and sedation (nortriptyline and desipramine are<br />

less problematic)<br />

Monitoring<br />

Use <strong>of</strong> anti-diabetic medications should include<br />

monitoring (for example, periodic blood sugars)<br />

for effectiveness based on desired goals for that<br />

individual and to identify complications <strong>of</strong><br />

treatment such as hypoglycemia, impaired renal<br />

function<br />

NOTE: Continued or long-term need for sliding<br />

scale insulin for non-emergency<br />

coverage may indicate inadequate blood<br />

sugar control<br />

Residents on rosiglitazone should be monitored for<br />

visual deterioration due to new onset and/or<br />

worsening <strong>of</strong> macular edema in diabetic patients<br />

Adverse Consequences<br />

Metformin has been associated with the<br />

development <strong>of</strong> lactic acidosis (a potentially life<br />

threatening metabolic disorder), which is more<br />

likely to occur in individuals with:<br />

o serum creatinine > 1.5 mg/dl in males or ><br />

1.4 mg/dl in females<br />

o abnormal creatinine clearance from any<br />

cause, including shock, acute myocardial<br />

infarction, or septicemia<br />

o age > 80 years unless measurement <strong>of</strong>

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