Fildena can cause low blood pressure (hypotension) in some cases, because its active ingredient is sildenafil citrate, a PDE5 inhibitor that relaxes blood vessels and increases blood flow to the *****. This same mechanism can also lower systemic blood pressure, especially in certain situations. Here’s a detailed explanation How Fildena Affects Blood Pressure Vasodilation effect: Sildenafil relaxes smooth muscles in blood vessel walls → blood vessels widen → blood pressure can drop slightly. In healthy men, this drop is usually mild and often goes unnoticed. Risk factors for significant low blood pressure: Taking nitrate medications (like nitroglycerin for chest pain) with Fildena is dangerous — it can cause a severe, life-threatening drop in blood pressure. Men with heart disease, uncontrolled hypertension, or hypotension are more susceptible. Older adults may be more sensitive due to age-related changes in circulation or other medications. Symptoms of low blood pressure: Dizziness or lightheadedness Fainting Blurred vision Rapid heartbeat or palpitations   Safety Tips Avoid nitrates completely while taking Fildena. Monitor blood pressure if you have a history of cardiovascular problems. Start with the lowest effective dose if you are older or have health risks. Seek immediate medical attention if you experience severe dizziness, fainting, or prolonged erection (>4 hours).