You must take Cialis at least 2 hours before having sex. Vardenafil works for four to five hours or more if you have mild to moderate erectile dysfunction. A newer form of medication that dissolves in the tongue may work faster than the pill you swallow. Viagra (sildenafil) is a prescription medication used to treat erectile dysfunction (ED) in men.
Viagra can't cure erectile dysfunction or increase sexual desire, but it can help relax muscles and increase blood flow to cause an erection. Viagra (manufactured by Pfizer) is a trademark of the generic drug sildenafil citrate. The Food and Drug Administration (FDA) approved it to treat sexual impotence, but sildenafil can also treat pulmonary arterial hypertension. Viagra is a vasodilator that is only available with a prescription.
You can't buy Viagra without a prescription in the U.S. UU. Both Viagra and Levitra are approved to treat erectile dysfunction (ED) in men 18 years of age and older. Both Viagra and Cialis are approved to treat erectile dysfunction (ED) in men 18 years of age and older.
The best way to know if you'll benefit from taking an erectile dysfunction medication such as Viagra is to see your healthcare provider. Some men don't respond successfully to Viagra, but there are many alternative treatments for erectile dysfunction. For most men who have trouble maintaining an erection firm enough to have sex (erectile dysfunction), these medications work well and cause few side effects. Over-the-counter medications with Viagra claim to increase blood flow and increase sex hormones to treat erectile dysfunction.
Sildenafil (Viagra), vardenafil (Levitra, Staxyn), tadalafil (Cialis), and avanafil (Stendra) are oral medications that reverse erectile dysfunction by improving the effects of nitric oxide, a natural chemical that the body produces and that relaxes penile muscles.
