If it is not treated right away, priapism can permanently damage your penis sudden vision loss in one or both eyes. They’re often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction ED. Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take. Medicines that block an enzyme called CYP3A4. As with sildenafil, a high-fat meal or alcohol keep the body from absorbing it as quickly. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. Such patients must not apply any out-of-pocket expenses incurred using this Savings Offer toward any government insurance benefit out-of-pocket spending calculations, such as Medicare Part D true out-of-pocket TrOOP costs You are responsible for reporting use of this Savings Offer to any private insurer, health plan, or other third party who pays for or reimburses any part of the prescription filled using this Savings Offer, as may be required.The Savings Offer and Program expire on 12/31/ For further information, call , visit , or write: Viatris Inc., P.O. Box , Mission, KS . Yes, Viagra works to treat ED in most people. It increases blood flow to the penis to help you get or keep an erection. If Viagra doesn’t work for you, talk with your . 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 .