RESERVIX SR 200 MG is a sustained-release formulation of Sildenafil, used primarily to treat erectile dysfunction (ED) in men. The sustained-release (SR) formulation allows for a more gradual release of the active ingredient, providing longer-lasting effects compared to immediate-release versions. Sildenafil works by increasing blood flow to the penis, which helps achieve and maintain an erection when combined with sexual stimulation. RESERVIX SR 200 MG is typically taken orally and should be used according to the healthcare provider’s instructions. It may be effective for up to 24 hours, allowing more flexibility in timing. Common side effects include headaches, facial flushing, and indigestion. As with other forms of sildenafil, it should not be used with nitrates or certain other medications, as this combination can lead to dangerously low blood pressure. Proper medical supervision is important to ensure safe and effective use of the medication.