![]() ![]() Increased shortness of breath or trouble breathing. ![]() Serious side effects and their symptoms can include the following: Call 911 if your symptoms feel life threatening or if you think you’re having a medical emergency. Serious side effectsĬall your doctor right away if you have serious side effects. If they’re more severe or don’t go away, talk with your doctor or pharmacist. If these effects are mild, they may go away within a few days or a couple of weeks. an erection that lasts longer than normal.flushing (reddening and warming of the face).Sildenafil oral tablet doesn’t cause drowsiness, but it can cause other side effects, including: It is important to note that certain foods, particularly foods high in fat, can cause the drug to work more slowly than normal. Sildenafil can be taken with food or without food. But if you have certain medical conditions or are taking other drugs, your doctor may recommend that you take this drug less often than once a day. Sildenafil should not be taken for ED more than once in a 24-hour period. However, it is recommended to use this drug within an hour before sex. Sildenafil can be used as early as 4 hours before sex and as late as 30 minutes before sex. How sildenafil is used How long before sex should I use sildenafil? Sildenafil slows down the progression of your illness. This decreases the blood pressure in your lungs. For PAH: Sildenafil works by relaxing the muscles and opening up the blood vessels in your lungs.Sildenafil only works for ED if you’re sexually aroused. This helps you get or maintain an erection. For ED: Sildenafil works by increasing blood flow to the penis.Sildenafil works in different ways, depending on the condition it’s being used to treat. These drugs are often used to treat similar conditions. A class of drugs is a group of medications that work in a similar way. Sildenafil belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Your heart has to work very hard to pump blood into your lungs. With PAH, the blood pressure in your lungs is too high. Revatio: This drug is used to treat PAH.With ED, you’re unable to get or maintain an erection. Viagra: This drug is used to treat ED.Generic oral tablets are available for both conditions, but the brand-name drugs each treat only one of the conditions. Sildenafil oral tablet is used to treat ED and PAH. In some cases, they may not be available in every strength or form as the brand-name drug. Generic drugs usually cost less than the brand-name version. Sildenafil oral tablet is available as the brand-name drugs Viagra and Revatio. It also comes in an intravenous (IV) form, which is only given by a doctor. It comes in the form of a tablet and suspension (liquid). ![]()
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