Tetrodotoxin inhibits directly acting stimulants of intestinal fluid secretionCOUPAR, I. M.Journal of pharmacy and pharmacology. 1986, Vol 38, Num 7, pp 553-555, issn 0022-3573Article

The peristaltic reflex in the rat ileum : evidence for functional μ- and δ-opiate receptorsCOUPAR, I. M.Journal of pharmacy and pharmacology. 1995, Vol 47, Num 8, pp 643-646, issn 0022-3573Article

Effect of α₂-adrenoceptor agonists on the expression of morphine-withdrawal in ratsCOUPAR, I. M.Naunyn-Schmiedeberg's archives of pharmacology. 1992, Vol 345, Num 5, pp 553-557, issn 0028-1298Article

Tetrodotoxin inhibits directly acting stimulants of intestinal fluid secretionCOUPAR, I. M.Journal of pharmacy and pharmacology. 1986, Vol 38, Num 7, pp 553-555, issn 0022-3573Article

Opioid action on the intestine: the importance of the intestinal mucosaCOUPAR, I. M.Life sciences (1973). 1987, Vol 41, Num 8, pp 917-925, issn 0024-3205Article

Characterization of the opiate receptor population mediating inhibition of VIP-induced secretion from the small intestine of the ratCOUPAR, I. M.British journal of pharmacology. 1983, Vol 80, Num 2, pp 371-376, issn 0007-1188Article

Characterization and tissue location of the neural adenosine receptor in the rat ileumCOUPAR, I. M.British journal of pharmacology. 1999, Vol 126, Num 5, pp 1269-1275, issn 0007-1188Article

Role of α₂-adrenoceptors in the regulation of intestinal water transportLIU, L; COUPAR, I. M.British journal of pharmacology. 1997, Vol 120, Num 5, pp 892-898, issn 0007-1188Article

Evidence for functional α_2D-adrenoceptors in the rat intestineLIU, L; COUPAR, I. M.British journal of pharmacology. 1996, Vol 117, Num 5, pp 787-792, issn 0007-1188Article

Difenoxin and loperamide : studies on possible mechanisms of intestinal antisecretory actionDE LUCA, A; COUPAR, I. M.Naunyn-Schmiedeberg's archives of pharmacology. 1993, Vol 347, Num 2, pp 231-237, issn 0028-1298Article

Studies investigating the possible involvement of adenosine in the antisecretory action of morphineHANCOCK, D. L; COUPAR, I. M.General pharmacology. 1997, Vol 28, Num 5, pp 709-713, issn 0306-3623Article

Characterisation of a postjunctional 5-ht₇-like and a prejunctional 5-HT₃ receptor mediating contraction of rat isolated jejunumMCLEAN, P. G; COUPAR, I. M.European journal of pharmacology. 1996, Vol 312, Num 2, pp 215-225, issn 0014-2999Article

The activity of non-steroidal anti-inflammatory drugs in the rat mesenteric vasculatureSTANTON, B. J; COUPAR, I. M; BURCHER, E et al.Journal of pharmacy and pharmacology. 1986, Vol 38, Num 9, pp 674-678, issn 0022-3573Article

Functional characterization of the adenosine receptor mediating inhibition of peristalsis in the rat jejunumHANCOCK, D. L; COUPAR, I. M.British journal of pharmacology. 1995, Vol 115, Num 5, pp 739-744, issn 0007-1188Article

The adenosine agonist NECA inhibits intestinal secretion and peristalsisCOUPAR, I. M; HANCOCK, D. L.Journal of pharmacy and pharmacology. 1994, Vol 46, Num 10, pp 801-804, issn 0022-3573Article

Do antidiarrhoeal opiates accumulate in the rat intestinal lumen ?DE LUCA, A; MURRAY, G; COUPAR, I. M et al.Journal of pharmacy and pharmacology. 1993, Vol 45, Num 12, pp 1082-1084, issn 0022-3573Article

Effects of adenosine analogues on the expression of opiate withdrawal in ratsDIONYSSOPOULOS, T; HOPE, W; COUPAR, I. M et al.Pharmacology, biochemistry and behavior. 1992, Vol 42, Num 2, pp 201-206, issn 0091-3057Conference Paper

The activity of non-steroidal anti-inflammatory drugs in the rat mesenteric vasculatureSTANTON, B. J; COUPAR, I. M; BURCHER, E et al.Journal of pharmacy and pharmacology. 1986, Vol 38, Num 9, pp 674-678, issn 0022-3573Article

Investigation into the effect of 5-hydroxytryptamine on fluid transport in the rat small intestineMCLEAN, P. G; COUPAR, I. M.General pharmacology. 1998, Vol 30, Num 2, pp 227-231, issn 0306-3623Article

A comparative study of functional 5-HT₄ receptors in human colon, rat oesophagus and rat ileumMCLEAN, P. G; COUPAR, I. M; MOLENAAR, P et al.British journal of pharmacology. 1995, Vol 115, Num 1, pp 47-56, issn 0007-1188Article

Functional characterization of the adenosine receptor mediating inhibition of intestinal secretionHANCOCK, D. L; COUPAR, I. M.British journal of pharmacology. 1995, Vol 114, Num 1, pp 152-156, issn 0007-1188Article

Tachykinin receptors in the guinea-pig isolated oesophagus : a complex systemKERR, K. P; MITCHELSON, F; COUPAR, I. M et al.British journal of pharmacology. 1997, Vol 120, Num 6, pp 1021-1028, issn 0007-1188Article

Stimulation of cyclic AMP formation in the circular smooth muscle of human colon by activation of 5-HT₄-like receptorsMCLEAN, P. G; COUPAR, I. M.British journal of pharmacology. 1996, Vol 117, Num 2, pp 238-239, issn 0007-1188Article

Evidence for functional δ-opiate receptors in the rat intestineHANCOCK, D. L; COUPAR, I. M.Journal of pharmacy and pharmacology. 1994, Vol 46, Num 10, pp 805-808, issn 0022-3573Article

Evidence for typtaminergic and noradrenergic involvement in the antisecretory action of morphine in the rat jejunumCOUPAR, I. M; TAYLOR, D. A.Journal of pharmacy and pharmacology. 1987, Vol 39, Num 5, pp 363-369, issn 0022-3573Article