Cenforce 150 mg contains sildenafil, then anyone who uses nitrate medicines should avoid it unless a doctor specifically says otherwise. The combination can cause a potentially dangerous drop in blood pressure. D DailyMed +1 Nitrates include medicines such as: Nitroglycerin Cenforce 150 mg tablets/spray/patches for angina Isosorbide mononitrate Isosorbide dinitrate Other organic nitrates or nitrites, including recreational “poppers” This applies even if the nitrate is used only occasionally, not just every day. D DailyMed Also, 150 mg sildenafil is higher than the usual recommended maximum dose of 100 mg for erectile dysfunction. D DailyMed If you've already taken Cenforce 150 mg and then need nitroglycerin for chest pain, do not take the nitrate on your own—seek emergency medical help and tell them when you took sildenafil. If you tell me the heart/BP medicines you currently take, I can check which ones are nitrates and which ones may interact with sildenafil.