Silagra 100 mg contains sildenafil citrate, a PDE5 inhibitor used for erectile dysfunction (ED). While effective for many men, there are situations where it should not be used. Here’s a detailed breakdown: When Silagra 100 mg Is NOT Recommended 1. Heart Conditions & Nitrates Never use with nitrates (e.g., nitroglycerin, isosorbide dinitrate) – can cause a dangerous drop in blood pressure. Avoid if you have: Recent heart attack (within 6 months) Unstable angina Severe heart failure Severe hypotension or uncontrolled hypertension 2. Severe Liver or Kidney Problems Impaired liver function can increase sildenafil levels in the blood, raising the risk of side effects. Severe kidney disease also requires caution or dose adjustment. 3. Eye Disorders Conditions like retinitis pigmentosa or history of non-arteritic anterior ischemic optic neuropathy (NAION). Sildenafil can rarely affect vision (blurred vision, blue tint, or sudden vision loss). 4. Allergies If you are allergic to sildenafil or any ingredient in Silagra, do not take it. 5. Medications That Interact Certain blood pressure medications (alpha-blockers) CYP3A4 inhibitors (some antifungals, antibiotics, HIV drugs) may increase risk of side effects Avoid using with other ED drugs simultaneously 6. Men Without ED Silagra is not recommended for recreational use in men without erectile dysfunction—can cause unnecessary side effects and complications. 7. Other Health Conditions Recent stroke or heart attack Severe hypotension Uncontrolled arrhythmias Summary Silagra 100 mg is generally safe when prescribed and used as directed, but certain heart, liver, kidney, or eye conditions, plus drug interactions, make it unsafe.