Table 4

 Recommendations for use of antiretroviral (ARV) drugs in pregnant women in different clinical scenarios in resource constrained settings

Clinical situationRecommendation
EFV, efavirenz; NVP, nevirapine; 3TC, lamivudine; ZDV, zidovudine.
(1) Start NVP with half dose for the first 2 weeks as recommended for adults in WHO guidelines.
(2) Monitor closely clinical and biochemical tolerance in the first month of ARV use
(3) Stop NVP in case of NVP associated toxicity, continue ZDV only until labour
Source: World Health Organization.91
Newly diagnosed HIV infected pregnant women without indication for ARV treatmentMother
• ZDV ± 3TC+NVP from 32 weeks gestation, through delivery (I), (2), (3); stop NVP and continue ZDV + 3TC for 3 days after delivery
• alternatively: ZDV + 3TC from 34–36 weeks boosted with single dose NVP at onset of labour
• alternatively: ZDV from 34–36 weeks boosted with single dose NVP at onset of labour
• Single dose NVP in settings where none of the more potent ARV combinations are feasible or available
Infant
• Single dose NVP within 72 hours of delivery and one week daily ZDV (extend ZDV for a second week with a second dose of NVP 5–7 days after the first one if ZDV + 3TC + NVP was the maternal regimen and breastfeeding has been initiated)
• If delivery occurred within 2 hours of maternal single dose of NVP, infant should receive an additional dose of NVP immediately after birth as well as the routine dose within 72 hours
Newly diagnosed HIV infected women, with indications for ARV treatment, who may become pregnantExclude pregnancy before starting treatment.
Avoid EFZ
Prefer ZDV + 3TC ± NVP regimen.
Newly diagnosed HIV infected pregnant women with indications for ARV treatmentDelay start of treatment until after the first trimester of pregnancy
Proceed as for non-pregnant adults (1), (2), (3) except EFV
Newly diagnosed HIV infected pregnant women, with indications for ARV treatment, who did not initiate therapy during pregnancyIn both cases proceed as for non-pregnant adults (WHO guidelines) with first line regimen recommended
• received short course MTCT prophylaxisInitiate ARV treatment as soon as possible, including in postpartum period
• did not receive any MTCT prophylaxis
HIV infected pregnant women newly diagnosed at the time of deliveryIf there is time, offer rapid test; if no time, rapid test as soon as possible (and acceptable) after delivery.
If test positive, initiate post-exposure prophylaxis in infant: single dose NVP within 72 hours of delivery plus 1 week ZDV.
HIV infected women on ARV treatment for their own diseaseExclude pregnancy before starting treatment. EFV should be avoided in women who can potentially become pregnant
Discontinue drugs with teratogenic potential (EFV) or with known adverse potential for the pregnant mother (d4TiddI)
Consider switching to regimens which include ZDV, 3TC or NVP