Stability of Tagamet Injection When added to or diluted with most commonly used intravenous solutions,. CHO: That sort of the bias we all think that you have to be sort of portly and smoking, and old to have heart diseases, but that jos ostaa tagamet not the case. If you notice other effects not listed above, contact your doctor or pharmacist. However, there was no impairment of mating performance or fertility, nor any harm to the fetus in these animals at doses to 48 times the full therapeutic dose of Tagamet, as compared with controls. How should take Tagamet cimetidine Use this medication exactly as directed on the label, or as your doctor has prescribed it for you. Check the labels on all your medicines because they may contain nonsteroidal anti-inflammatory drugs NSAIDs such as aspirin, ibuprofen, naproxen that may cause stomach irritation ulcers. Cimetidine should be used only when clearly needed during pregnancy.