It works by increasing blood flow to the penis, which helps to maintain an erection
Rather than Viagra’s 50 or 100 mg blue pills, Cialis comes in lower doses, the smallest of which is just 2
£82
Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men
Maximum dose: 20 mg orally three times a day
According to price-comparison website GoodRx
Among people who take Viagra or sildenafil, 3% get blue vision that lasts a few hours
Brand names: Viagra, Revatio
Viagra dosage for erectile dysfunction (ED) is usually 50-100 milligrams (mg), but those over 65 may start at 25 mg
This article was most recently revised and updated by Amy Tikkanen
It is also used to treat pulmonary arterial hypertension, a serious heart and lung condition
Alternatively, the medicine may be taken 30 minutes to 4 hours before sexual intercourse
Viagra increases blood flow to your penis, which can help you get and maintain an erection for whatever activity you have in mind
1mg is the same as 0