Manforce 100mg Tablet contains Sildenafil citrate, a potent phosphodiesterase type 5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) in adult males. Sildenafil works by selectively inhibiting the PDE5 enzyme, which results in increased levels of cyclic guanosine monophosphate (cGMP) in the corpus cavernosum of the penis, leading to smooth muscle relaxation and enhanced blood flow during sexual stimulation. This pharmacological action facilitates the achievement and maintenance of an erection sufficient for satisfactory sexual activity. Manforce 100mg is typically administered orally, approximately 30 to 60 minutes before anticipated sexual activity, with effects lasting up to 4-5 hours. It should be used under medical supervision, particularly in patients with cardiovascular conditions, as sexual activity and Sildenafil may impose additional cardiac stress. Contraindications include concurrent use of nitrates or nitric oxide donors, as this combination can cause severe hypotension. Common side effects may include headache, flushing, dyspepsia, nasal congestion, and dizziness. Caution is advised in patients with hepatic or renal impairment. Manforce 100mg Tablet is not indicated for use in women or pediatric patients. Proper diagnosis and evaluation by a healthcare professional are essential prior to initiating therapy with Sildenafil.