Fildena CT 50 mg contains Sildenafil Citrate (50 mg), a phosphodiesterase type 5 (PDE5) inhibitor. It works by relaxing blood vessels, which improves blood flow to the ***** during ***** stimulation. However, this vasodilation can also lower systemic blood pressure, especially in certain situations. When Is the Risk Higher? The risk of a sudden drop in blood pressure is increased if you: Take nitrates (e.g., nitroglycerin for chest pain) – this combination can be dangerous and even life-threatening. Use alpha-blockers (for high blood pressure or prostate issues) Drink alcohol or use recreational drugs (e.g., poppers/nitrites) Have low baseline blood pressure or certain heart conditions Are dehydrated or on diuretics (water pills) Symptoms of a Sudden Drop in Blood Pressure: Dizziness or lightheadedness Fainting Blurred vision Nausea Weakness or confusion What to Do: Do not take Fildena CT 50 mg if you are using nitrates or certain heart medications Consult your doctor if you have heart problems, low blood pressure, or are on multiple medications Take the medication only as prescribed, and avoid alcohol or other drugs that can amplify the blood-pressure-lowering effects If you're experiencing dizziness or low blood pressure symptoms after taking Fildena, seek medical help immediately, especially if the symptoms are severe.