a study has been carried out on 20 male patients affected by gastric and duodenal ulcer disease and undergoing pharmacological treatment with pirenzepine , cimetidine , carbenoxolone and zolimidine in a multicentre controlled clinical trial , on prl , tsh , fsh , lh plasma levels , taking into account the circadian rhythms of these endocrine variables .
C0013295
duodenal ulcer disease
C0008783
cimetidine