The pharmacokinetics of promethazine hydrochloride after administration of rectal suppositories at three dosage strengths and oral syrup were studied. The study had an open-label, randomized ...

Recently, San Pablo police officers pulled over a dark-colored sedan and discovered multiple boxes of prescription-only promethazine hydrochloride oral solution. In total, San Pablo PD said the ...

The pharmacokinetics of promethazine administered in oral syrup and rectal suppositories were highly variable, but, in general, the suppositories produced a lower C max and later t max than the syrup.