d4T: keep it or abandon it.

Stavudine is a nucleoside analogue used widely for first-line treatment of HIV in developing and middleincome countries. The World Health Organization recommended that all patients should switch to stavudine (30mg BID). However, there is evidence from the dose-ranging trials that patients with body weight below 60kg should use a dose of 20mg BID. For patients who show adverse events on stavudine, a switch to other nucleoside analogues can be considered. This article reviews d4T to study if it should be kept or abandoned.