Vidalista 5 typically starts working within 30 minutes to 1 hour after ingestion, and its effects can last for up to 36 hours in some individuals. This extended duration of action provides more flexibility in sexual activity without the need for immediate timing. Tadalafil, including Vidalista 5, is generally effective in treating ED by increasing blood flow to the penis, which helps men achieve and maintain erections during sexual stimulation.