WebJul 12, · Dosage for erectile dysfunction. The recommended dosage of Viagra for erectile dysfunction (ED) is 50 mg, taken as needed about 1 hour before sexual activity. .This boosts blood flow and helps you get an erection from sexual activity. If it is not treated right away, priapism can permanently damage your penis sudden vision loss in one or both eyes. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help. You can take it in a small dose daily or in a larger dose as needed. It works for up to 36 hours. Especially tell your healthcare provider if you take any of the following: medicines called nitrates medicines called guanylate cyclase stimulators such as Adempas riociguat medicines called alpha-blockers, such as Hytrin terazosin HCl , Flomax tamsulosin HCl , Cardura doxazosin mesylate , Minipress prazosin HCl , Uroxatral alfuzosin HCl , Jalyn dutasteride and tamsulosin HCl , or Rapaflo silodosin.WebUses. Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, sildenafil works by increasing . WebViagra. Compare prices and print coupons for Sildenafil (Generic Revatio and Viagra) and other drugs at CVS, Walgreens, and other pharmacies. Prices start at $ WebJul 12, · Dosage for erectile dysfunction. The recommended dosage of Viagra for erectile dysfunction (ED) is 50 mg, taken as needed about 1 hour before sexual activity. .Its effects might last longer if you have mild to moderate ED. The products discussed in this site may have different product labeling in different countries. They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. This boosts blood flow and helps you get an erection from sexual activity. The body takes longer to absorb it after a high-fat meal or alcohol.
