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Introduction to Arvs - Botswana Teen Club

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<strong>Introduction</strong> <strong>to</strong> Antiretrovirals<br />

(ARVs)<br />

<strong>Teen</strong> <strong>Club</strong> Community Partners Training<br />

Programme<br />

What is Anti-Retroviral Therapy<br />

(ART)<br />

� Anti-Retroviral Therapy (ART) is the<br />

use of at least three different<br />

medications known as Anti-RetroViral<br />

drugs (ARVs) in order <strong>to</strong> suppress the<br />

replication of HIV.<br />

� Treatment with these combinations of<br />

drugs is also known as Highly Active<br />

Antiretroviral Therapy (HAART).<br />

Why do we need ARVs?<br />

Without ARVs,<br />

patients with<br />

HIV<br />

eventually<br />

become sick<br />

and die<br />

Objectives<br />

By the end of the session participants<br />

will be able <strong>to</strong>:<br />

� Discuss how ARVs work and how<br />

they should be taken<br />

� Identify difficulties associated with<br />

taking ARVs<br />

� Name common ARVs used in<br />

<strong>Botswana</strong><br />

What is Anti-Retroviral Therapy<br />

(ART)?<br />

� ART is not a cure.<br />

� ART must be taken for life and is<br />

costly.<br />

� ART is also used in the prevention of<br />

mother <strong>to</strong> child transmission<br />

(PMTCT).<br />

Why do we need ARVs?<br />

� Without treatment mortality for<br />

HIV infected babies is as high as<br />

40 percent in the first year of life!<br />

� Anti-retroviral drugs can<br />

significantly improve the quality<br />

of life of HIV infected children.<br />

1


With ARVs, People With HIV Can Live<br />

Long, Healthy Lives<br />

The child on ARVs<br />

can have a<br />

normal, healthy<br />

life<br />

How should ARVs be taken?<br />

� The patient must take three different ARV<br />

drugs. The medicines do not work well if<br />

you take only one or two.<br />

� ARVs usually work in combination because<br />

of the nature of the replication cycle of the<br />

HIV.<br />

� If the ARV that operates at a particular site<br />

of the CD4 cell fail <strong>to</strong> s<strong>to</strong>p some of the<br />

virus, the other ARVs in the combination<br />

will operate at the other sites <strong>to</strong> make the<br />

virus inactive.<br />

� Another way <strong>to</strong><br />

explain the<br />

importance of taking<br />

all three ARVs is <strong>to</strong><br />

compare the ARVs <strong>to</strong><br />

the three legs of a<br />

cooking pot.<br />

� If a pot is balancing<br />

on three s<strong>to</strong>nes and<br />

you take one away,<br />

the pot will spill.<br />

What do ARVS do?<br />

� They keep the virus<br />

from multiplying<br />

� A good way <strong>to</strong> think<br />

about how ARVs<br />

work is that they<br />

keep the virus<br />

“sleeping”<br />

How <strong>to</strong> educate caregivers and children on<br />

taking all the three drugs!<br />

Look at the soldier in the<br />

picture.<br />

He is wearing three things:<br />

a hat, a shirt and pants<br />

You can tell young patients<br />

that ARVs are like the<br />

soldier’s hat, shirt and<br />

pants. If the soldier lost his<br />

pants, it would be harder<br />

for him <strong>to</strong> work!<br />

How should ARVs be taken?<br />

HAART refers <strong>to</strong> taking three effective<br />

antiretroviral medicines <strong>to</strong>gether<br />

The classes of ARV drugs are:<br />

� Nucleoside Reverse Transcriptase<br />

Inhibi<strong>to</strong>rs (NRTIs),<br />

� Non-Nucleoside Reverse<br />

Transcriptase Inhibi<strong>to</strong>rs (NNRTIs)<br />

� Protease Inhibi<strong>to</strong>rs (PIs).<br />

� Fusion Inhibi<strong>to</strong>rs<br />

2


How should ARVs be taken?<br />

Most ARVs need <strong>to</strong> be<br />

taken twice a day, every<br />

day in order <strong>to</strong> work.<br />

This picture shows how<br />

the virus stays “sleeping”<br />

when the medicines are<br />

taken correctly.<br />

What happens if the ARVs are not<br />

taken correctly?<br />

When the ARVs are not<br />

taken correctly, the virus<br />

“wakes up” and begins<br />

making more copies of<br />

itself.<br />

When the virus “wakes up,” it<br />

can attack the CD4 cells<br />

again.<br />

What happens if the ARVs are not<br />

taken correctly?<br />

The virus may also become resistant <strong>to</strong><br />

the medicines.<br />

This means that the virus has become<br />

“tricky” and has learned <strong>to</strong> get away<br />

from the medicines.<br />

When resistance <strong>to</strong> the medicines<br />

occurs, the medicines will not work<br />

anymore, even if they are taken<br />

perfectly again.<br />

If resistance occurs, the child will have <strong>to</strong><br />

change <strong>to</strong> different medicines<br />

ARV Dosing in children<br />

� ARV dosages are based on the<br />

child’s weight or body surface area,<br />

depending on the drug.<br />

� Dosing is rechecked at every visit<br />

and adjusted for weight gain.<br />

� WHO Pediatric Dosing Guides are<br />

now used <strong>to</strong> determine appropriate<br />

doses.<br />

What happens if the ARVs are not<br />

taken correctly?<br />

This picture shows a<br />

mother who has<br />

forgotten <strong>to</strong> give ARVs<br />

<strong>to</strong> her child. The child’s<br />

virus is waking up.<br />

First and Second Line regimens in<br />

<strong>Botswana</strong><br />

� The first HAART regimen that a patient<br />

takes is First Line for that patient.<br />

� If the virus becomes resistant <strong>to</strong> the First<br />

Line drugs, the patient has <strong>to</strong> move <strong>to</strong><br />

Second Line drugs.<br />

� It is important <strong>to</strong> take 2 nd line medicines<br />

perfectly because if the patient becomes<br />

resistant <strong>to</strong> 2 nd line medicines, a 3 rd option<br />

may not be available.<br />

3


For many patients is not easy <strong>to</strong> take<br />

ARVs correctly.<br />

� Sometimes it is hard <strong>to</strong> remember <strong>to</strong><br />

take the medicines twice a day,<br />

every day<br />

� Children may have problems<br />

swallowing pills, especially around<br />

other people.<br />

� Children may not like the taste of the<br />

liquid medicines<br />

� Some children, especially older<br />

ones, may hide their pills<br />

What are some ways <strong>to</strong> overcome the<br />

difficulties?<br />

� Ask the doc<strong>to</strong>r or pharmacist if there are<br />

other options for a child who does not like<br />

his medicines.<br />

� If a child does not like <strong>to</strong> take liquid medicines,<br />

there may be a pill form that the child can take<br />

� If the pills are <strong>to</strong>o big for the child <strong>to</strong> swallow<br />

easily, there might be a liquid medicine that the<br />

child can take<br />

� Allow the child <strong>to</strong> take medicines with a<br />

favorite food or drink if the medicines taste<br />

bad<br />

For some patients, it will be more difficult <strong>to</strong><br />

take medicines because of side effects.<br />

� Side effects are problems that happen<br />

because of the medicines.<br />

� Most side effects are temporary and only<br />

happen while the body is getting used <strong>to</strong><br />

the medicines.<br />

� Side effects should always be reported <strong>to</strong><br />

the doc<strong>to</strong>r or nurse so that appropriate<br />

treatments can be given.<br />

What are some ways <strong>to</strong> overcome the<br />

difficulties?<br />

� Use an alarm as a reminder (cell<br />

phone alarm)<br />

� Have another responsible adult help<br />

remind the child<br />

� Teach children how <strong>to</strong> take their<br />

medicines so that they can remind<br />

their caregivers if the caregivers<br />

forget<br />

� But remember, the caregiver must<br />

watch the patient take the medicine<br />

every time!<br />

When children or their caregivers travel,<br />

sometimes the medicines are not taken correctly.<br />

It is important <strong>to</strong><br />

always plan<br />

ahead <strong>to</strong> make<br />

sure that the child<br />

will continue <strong>to</strong><br />

take the ARVs<br />

correctly even<br />

during holidays.<br />

This picture illustrates some common<br />

side effects of ARVs<br />

•Headache<br />

•Diarrhea<br />

•Vomiting<br />

•Rash<br />

4


Different medicines have different side<br />

effects<br />

� The doc<strong>to</strong>r may change medicines if<br />

the side effects are <strong>to</strong>o severe or do<br />

not go away<br />

� It is very important that the doc<strong>to</strong>r is<br />

notified before the caregivers decide<br />

<strong>to</strong> s<strong>to</strong>p a medicine!<br />

The next few slides will show ARVs that<br />

are commonly used in <strong>Botswana</strong><br />

� Medicine names can be confusing<br />

� Each medicine usually has more than one name<br />

� We try <strong>to</strong> use the simplest name when we talk <strong>to</strong><br />

patients <strong>to</strong> make it easier for them <strong>to</strong> remember<br />

� If a different company makes the medicines,<br />

they may look different<br />

� If medicines look different from what the patient is<br />

used <strong>to</strong> taking, they should always ask the<br />

pharmacist, the doc<strong>to</strong>r, or the nurse if the<br />

medicines are the right medicines<br />

� That way, they can be sure that they are taking the<br />

correct medicine<br />

ARV interactions with other medicines<br />

can be a problem<br />

� ARVs can have interactions with other<br />

medicines making them either more <strong>to</strong>xic<br />

or less effective for the patient<br />

� Thus, the doc<strong>to</strong>r should always be notified<br />

regarding:<br />

� Any other medications the patient is currently<br />

taking<br />

� Such as treatment for tuberculosis<br />

� Alternative medicines given <strong>to</strong> the patient<br />

� Herbal remedies<br />

� Traditional healer potions<br />

AZT (zidovudine, retrovir)<br />

d4T (stavudine, zerit) 3TC (lamivudine, epivir)<br />

5


NVP (nevirapine, viramune) EFV (efavirenz, s<strong>to</strong>crin)<br />

Kaletra (lopinavir/ri<strong>to</strong>navir, Aluvia)<br />

Special note: Should be<br />

taken with food and must<br />

not be taken at the same<br />

time as DDI<br />

Review Question #1<br />

What are two things that can happen when a<br />

person on ARVs does not take the<br />

medicines correctly?<br />

Answers:<br />

1. The HIV “wakes up” and attacks the CD4<br />

cells, making the body weak.<br />

2. The HIV becomes “tricky” and learns<br />

how <strong>to</strong> get away from the medicines so<br />

that the medicines may not work<br />

anymore, even when taken correctly<br />

again.<br />

DDI (didanosine, videx)<br />

Special note:<br />

Must be taken on an<br />

empty s<strong>to</strong>mach (at<br />

least an hour before<br />

and two hours after<br />

meals)<br />

Review Question #2<br />

Which of the following is true regarding side<br />

effects of ARVs?<br />

a. Most go away after a few days or weeks<br />

b. If a person has a side effect, he should<br />

s<strong>to</strong>p the medicines without notifying the<br />

doc<strong>to</strong>r or nurse<br />

c. A person with side effects should discuss<br />

them with the doc<strong>to</strong>r or nurse<br />

d. Both a and c are true<br />

6


Review Question #2<br />

Which of the following is true regarding side<br />

effects of ARVs?<br />

a. Most go away after a few days or weeks<br />

b. If a person has a side effect, he should<br />

s<strong>to</strong>p the medicines without notifying the<br />

doc<strong>to</strong>r or nurse<br />

c. A person with side effects should discuss<br />

them with the doc<strong>to</strong>r or nurse<br />

d. Both a and c are true<br />

Key Points<br />

� ARVs keep the HIV from attacking the<br />

body and allow people with HIV <strong>to</strong> live<br />

long, healthy lives<br />

� Missing doses can cause the virus <strong>to</strong><br />

become resistant <strong>to</strong> the medicines so that<br />

the medicines will not work anymore<br />

� There are many challenges associated<br />

with taking ARVs that health care<br />

providers must address<br />

Discussion Question #3<br />

What information do you find most<br />

important <strong>to</strong> share with children and<br />

families in your community about<br />

ARVS<br />

THANK YOU<br />

� Thank you <strong>to</strong> all our partners<br />

7

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