The active ingredient in Vidalista 20 mg is tadalafil. Tadalafil works by increasing blood flow to the penis during sexual stimulation, which helps men achieve and maintain erections suitable for sexual activity. Like any medication, Vidalista 20 mg may cause side effects in some individuals. Common side effects may include headache, flushing, indigestion, nasal congestion, back pain, and muscle aches. Serious side effects such as priapism (prolonged erection) or sudden vision loss are rare but require immediate medical attention.
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