Cimetidine and Pancreatic Function

McIsaac, R L; Knight, S E; Fielding, L P; Hittinger, Rosemary

doi:10.1016/s0140-6736(78)90570-6

Cited by 7 publications

(1 citation statement)

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“…cimetidine (Brimblecombe &Duncan, 1977). These apparently paradoxical actions of cimetidine on carbohydrate metabolism may however explain some of the contradictory reports concerning the behaviour of blood glucose in response to cimetidine (Eversmann et al, 1979;Jefferys & Vale, 1975;McIsaac et al, 1978;Raptis et al, 1979).…”

Section: Discussionmentioning

confidence: 98%

The Endocrine and Metabolic Effects of Cimetidine

Stubbs

Delitala

Besser

et al. 1983

Clinical Endocrinology

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SUMMARY Serial blood sampling in nine patients treated with cimetidine (1 g/day) showed that PRL values were within the normal range apart from a stress‐induced initial rise. Hormonal and metabolic profiles from 08.30 to 18.30 h were performed in six patients before and after 1 month's treatment with cimetidine (1 g/day). Circulating PRL, LH, FSH, GH, TSH T3, T4 and testosterone were similar before and after treatment. The mean blood glucose fell from 5·4 ± 0·3 mmol/l to 4·8 ± 0·2 mmol/l on cimetidine (P<0·02). Small changes were also observed in blood pyruvate, lactate, 3‐hydroxybutyrate and the (lactate)/(pyruvate) ratio. The effects of oral or i.v. cimetidine on the circulating concentrations of insulin, glucose and intermediary metabolites were investigated in normal subjects. Intravenous cimetidine (100 mg/h for 4 h) given to fasting subjects decreased blood glucose and serum insulin by 15 and 34% respectively at 150 min. During an oral GTT, i.v. cimetidine caused a striking decline in blood glucose, lactate and pyruvate responses compared with control studies, although the serum insulin was similar to control values. When given for 48 h before the study, oral cimetidine did not alter basal serum insulin and blood glucose, lactate, pyruvate, alanine, glycerol and 3‐hydroxybutyrate levels. However, 150 min after an oral GTT the serum insulin was increased by 47% by oral cimetidine although the blood glucose was not significantly changed compared with the control day. Oral cimetidine had no effect on the blood glucose or serum insulin during an i.v. GTT. These results show that oral cimetidine given at therapeutic doses to patients with peptic ulcers does not produce consistent changes in circulating anterior pituitary hormones. Oral cimetidine given to patients for 1 month and i.v. cimetidine given to normal subjects have mild hypoglycaemic effects. Oral cimetidine administered over 48 h to normal subjects has little effect on blood glucose concentration.

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Section: Discussionmentioning

confidence: 98%

The Endocrine and Metabolic Effects of Cimetidine

Stubbs

Delitala

Besser

et al. 1983

Clinical Endocrinology

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Interaction between gliclazide and cimetidine

Archambeaud-Mouveroux

Nouaille

Nadalon

et al. 1987

Eur J Clin Pharmacol

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The role of ranitidine infusion on glucose, insulin and C-peptide serum levels induced by oral glucose tolerance test in healthy subjects

et al. 1986

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In 9 healthy subjects we evaluated the effect of a constant ranitidine infusion (100 mg) on glucose (mg/dl), insulin (microU/ml) and C-peptide (ng/ml) serum levels promoted by oral glucose tolerance test (75 g). Ranitidine significantly increased the area under concentration/time curves for glucose and insulin but not that of C-peptide. Our data indicate that ranitidine does not affect pancreatic insulin release nor peripheral glucose utilization and are consistent with the hypothesis that ranitidine influences the hepatic clearance of glucose and insulin both of which undergo high first-pass liver extraction.

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Cimetidine and Pancreatic Function

Cited by 7 publications

References 0 publications

The Endocrine and Metabolic Effects of Cimetidine

The Endocrine and Metabolic Effects of Cimetidine

Interaction between gliclazide and cimetidine

The role of ranitidine infusion on glucose, insulin and C-peptide serum levels induced by oral glucose tolerance test in healthy subjects

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