Suhagra 100 mg can be dangerous when taken with nitrates because both medicines lower blood pressure, potentially causing a sudden, life-threatening drop. Suhagra contains sildenafil, which treats erectile dysfunction by relaxing blood vessels and increasing blood flow. Nitrates, commonly prescribed for chest pain (angina), also widen blood vessels. Why is the combination dangerous? Severe low blood pressure: Blood pressure can fall dramatically, causing dizziness, weakness, or fainting. Reduced blood supply to vital organs: A severe drop can compromise blood flow to the brain and heart. Potentially life-threatening complications: In severe cases, it can lead to shock or cardiovascular collapse. Which medicines should you avoid combining? Examples of nitrates include: Nitroglycerin (glyceryl trinitrate/GTN) Isosorbide mononitrate Isosorbide dinitrate Recreational nitrites, sometimes called “poppers” Important: Nitrates must generally be avoided for at least 24 hours after sildenafil, including Suhagra. If you have taken sildenafil, emergency clinicians need to know before giving you nitrates. Do not assume nitrates are safe after 24 hours in every situation. If you develop chest pain after taking Suhagra, seek emergency medical care, tell responders when you took it, and do not take nitroglycerin yourself. What if you take blood pressure tablets? Some common blood pressure medicines can be used with sildenafil under medical supervision, but the risk depends on the medicine and your health. Which blood pressure or heart medicine do you take? Tell me its name and dose, and I can explain the specific interaction with Suhagra 100 mg.