Vidalista 20 contains the active ingredient tadalafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. PDE5 inhibitors work by increasing blood flow to the penis, which helps men achieve and maintain an erection during sexual activity. Vidalista 20 is generally well-tolerated, with common side effects including headache, flushing, nasal congestion, and back pain. Serious side effects are rare but can include sudden vision loss or hearing impairment.
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