1. Boubler B, Lembeck F (1979) Inhibition of stimulated fluid secretion in the rat small and large intestine by opiate agonists. Naunyn-Schmiedeberg's Arch Pharmacol 306:113?118
2. Björck S (1982) Autonomic nerves and neuropeptides in concentrating function and motility of the gallbladder. Thesis, University of Göteborg, Sweden
3. Clay GA, Mackerer CR, Lin TK (1977) Interaction of loperamide with 3H Naloxone binding sites in guinea pig brain and myenteric plexus. Mol Pharmacol 13:533?540
4. Economou G, Ward-McQuaid JN (1971) A cross over comparison of the effects of morphine, pethidine, pentazocine, and phenazocine on biliary pressure. Gut 12:218?221
5. Hardcastle J, Hardcastle PT, Read NW, Redfern JS (1981) Effect of loperamide on prostaglandin E2-induced secretion by rat small intestine. Clin Res Rev 1 (Suppl 1):161