"Pharmacokinetics of promethazine hydrochloride after administration of rectal suppositories and oral syrup to healthy subjects". American Journal of Health-System Pharmacy. 57 (16): 1499-505. August 2000. doi:10.1093/ajhp/57.16.1499. PMID10965395.
"Pharmacokinetics of promethazine hydrochloride after administration of rectal suppositories and oral syrup to healthy subjects". American Journal of Health-System Pharmacy. 57 (16): 1499-505. August 2000. doi:10.1093/ajhp/57.16.1499. PMID10965395.