Viagra 100 mg film-coated tablets contain sildenafil citrate. It is an oral medication that’s used to treat erectile dysfunction (ED) in men who are not able to achieve or maintain a harder and stronger erection on their own and also for the treatment of pulmonary hypertension. It works by increasing blood flow to certain parts of the body, mainly in the penis, which helps a man get and maintain an erection. It also provides stamina and better performance during sexual intercourse. It can be taken by mouth, usually 1 hour before sexual activity. The effects can last for up to 4 hours.
