since preclinical studies indicated that 3'-azido-3'-deoxythymidine ( azt , zidovudine , retrovir , bw a509u ) , a potent anti-hiv agent , is not metabolized extensively in rats , rabbits , mice , guinea pigs , cats , or dogs , the extensive biotransformation of azt observed in humans was not expected .
C0699576
retrovir
C0043474
azt