1. The pH dependence of rectal absorption of theophylline from solutions of aminophylline in situ in rats;Crommelin;Int. J. Pharm.,1979
2. Route of administration and metabolic production: S-oxidation of promethazine;Houston,1981
3. Biopharmaceutics of the rectal administration of drugs;Moolenaar;Pharm. Int.,1980
4. Manipulation of rectal absorption rate of phenytoin in man;Moolenaar;Pharm. Weekbl.,1981
5. The disposition of promethazine in man;Quinn;J. Pharm. Pharmacol.,1979