Sildenafil: Usage, Dosage Side Effects – Drugs.com

As Canada’s trusted pharmacy, Rexall provides detailed drug factsheets for Viagra with common uses, dosage instructions, side effects drug interactions. Viagra for Erectile Dysfunction User Reviews. Viagra has an average rating of 8.5 out of 10 from a total of 212 reviews for the treatment of Erectile Dysfunction. 83% of reviewers reported a positive experience, while 10% reported a negative experience. can a minor buy viagra Sildenafil may be used to treat erectile dysfunction (ED or impotence) in men (Viagra brand) or pulmonary arterial hypertension in both men and women (Revatio brand), depending on the brand. Sildenafil blocks the action of an enzyme known as cGMP-specific phosphodiesterase type-5 (PDE-5). Find out why drugs you buy on the internet for erectile dysfunction (ED) may have fake ingredients that are harmful or the wrong dosages of real medicine. Sildenafil can cause a serious drop in your blood pressure when used with nitrates. A serious drop in blood pressure can lead to dizziness, fainting, and rarely heart attack or stroke .

Sildenafil (Viagra). This medicine works best when you take it on an empty stomach an hour before sex. The body takes longer to absorb it after a high-fat meal or alcohol. Its effects often last for 4 to 5 hours. It might work longer if you have mild to moderate erectile dysfunction. Vardenafil. In the first study, a single oral dose of sildenafil 100 mg or matching placebo was administered in a 2-period crossover design to 4 generally healthy males with benign prostatic hyperplasia (BPH). Following at least 14 consecutive daily doses of doxazosin, sildenafil 100 mg or matching placebo was administered simultaneously with doxazosin. sildenafil 100mg how to take Viagra comes as an oral tablet, in these strengths: 25 milligram (mg), 50 mg, and 100 mg. Other forms of sildenafil (the active drug in Viagra) comes in other strengths, such as 20 mg. The maximum recommended dose of 100 mg sildenafil was not evaluated in this study [see Drug Interactions (7.5)]. Effects of Sildenafil tablets on Cardiac Parameters: Single oral doses of sildenafil up to 100 mg produced no clinically relevant changes in the ECGs of normal male volunteers. Studies have produced relevant data on the effects of

Sildenafil is available as oral tablets of 25 mg, 50 mg, and 100 mg strength for erectile dysfunction (ED). Most patients receive a prescription for 50 mg of oral sildenafil, taken as needed approximately 1 hour before sexual activity. The dose can be titrated upward to a maximum of 100 mg or down to 25 mg based on individual effectiveness and