Never combine Viagra with nitrates (found in nitroglycerin, isosorbide mononitrate, and isosorbide dinitrate) due to a potentially dangerous drop in blood pressure. This combination can lead to severe hypotension, even life-threatening consequences.
Avoid alpha-blockers (used for high blood pressure or enlarged prostate) as they can also cause a significant drop in blood pressure when taken with Viagra. Consult your doctor before combining these medications.
Similarly, certain antifungal medications, such as ketoconazole and itraconazole, can increase Viagra’s levels in your bloodstream, potentially leading to side effects. Always inform your doctor about all medications you are taking.
Avoid combining Viagra with HIV protease inhibitors (like ritonavir or indinavir), as these can also elevate Viagra’s blood levels. Your doctor might need to adjust your Viagra dosage.
Specific blood pressure medications like guanethidine or methyldopa can interact adversely with Viagra; therefore, always disclose your full medication history to your doctor or pharmacist before using Viagra.
If you use any medications for heart problems, high blood pressure or take other prescription drugs, speak to your doctor before taking Viagra. This will help to minimize the risks of harmful interactions.
