· Sildenafil (Oral Route) Description and Brand Names Before Using Proper Use Precautions Side Effects Products and services Proper Use Drug information provided by: Merative, Micromedex ® Use sildenafil exactly as directed by your doctor. Do not use more of it and do not use it more often than your doctor ordered.The following nonprescription or herbal products may interact with sildenafil: cimetidine Tagamet HB , St. Some medications should not be taken with sildenafil. Be sure to let your doctor and pharmacist know that you are taking these medications before you start taking sildenafil. Your doctor will tell you not to take sildenafil if you are taking street drugs containing nitrates. This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. What side effects can this medication cause? The four main medicines taken by mouth for erectile dysfunction are: Avanafil Stendra. · Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Do not take Viagra while also taking Revatio. Warnings. Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the . Typical dosing for Sildenafil (Viagra) The typical dose is to take 50 mg of sildenafil (Viagra) by mouth, about 1 hour before sex, as needed. The maximum recommended dose is mg. Don’t take sildenafil (Viagra) more than once daily (at any dose). Written by Brian Leonard, PharmD, BCACP, BCGP.Sildenafil may cause side effects. If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. If your dose is different, do not change it unless your doctor tells you to do so. This medicine is available only with your doctor’s prescription. It lasts 4 to 5 hours, or longer if you have mild to moderate ED. By controlling the enzyme, sildenafil helps to maintain an erection after the penis is stroked. Follow your doctor’s orders or the directions on the label.
