Vidalista 40 mg is a fantastic drug for treating ejaculation and erectile dysfunction. One of its active ingredients, tadalafil, works by blocking the production of PDE-5. Tadalafil controls the body's synthesis of nitric oxide, which promotes a good erection. Medication helps a man get and stay erect. It also increases blood flow to the penis and helps with sexual arousal. It should only be taken as directed by a doctor. Depending on the need, the medication should be given 30 to 60 minutes before having sex.