In some patients, the use of STENDRA with alpha-blockers can lead to a drop in blood pressure or fainting Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. These include terazosin (Hytrin ®), tamsulosin HCl (Flomax ®), doxazosin (Cardura ®), prazosin HCl (Minipress ®), alfuzosin HCl (UroXatral ®), dutasteride and tamsulosin HCl (Jalyn ®), or silodosin (Rapaflo ®). some types of antibiotics, such as clarithromycin (Biaxin ®), telithromycin (Ketek ®), or erythromycin.some types of oral antifungal medicines, such as ketoconazole (Nizoral ®) and itraconazole (Sporanox ®).medicines called HIV protease inhibitors, such as ritonavir (Norvir ®), indinavir (Crixivan ®), saquinavir (Fortavase ® or Invirase ®), or atazanavir (Reyataz ®).medicines called guanylate cyclase stimulators, such as riociguat.Especially tell your healthcare provider if you take any of the following: STENDRA may affect the way other medicines work, and other medicines may affect the way STENDRA works, which may cause side effects. Tell your healthcare provider about all of the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. have had an erection that lasted for more than 4 hours have problems with your blood cells, such as sickle cell anemia, multiple myeloma, or leukemia have retinitis pigmentosa, a rare genetic (runs in families) eye disease have ever had severe vision loss, including an eye problem called non-arteritic anterior ischemic optic neuropathy (NAION) have bleeding problems have or have had stomach ulcers have liver problems have kidney problems or are having kidney dialysis or have any other medical conditions.have or have had heart problems such as a heart attack, irregular heartbeat, angina, or heart failure have had heart surgery within the last 6 months have had a stroke have low blood pressure, or high blood pressure that is not controlled have a deformed penis shape.Some people may also have ringing in their ears (tinnitus) or dizziness.īefore you take STENDRA, tell your healthcare provider if you:
It is uncertain whether PDE5 inhibitors directly cause vision loss. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). Sudden vision loss in one or both eyes.If you have an erection that lasts more than 4 hours, get medical help right away. An erection that will not go away (priapism).Uncommonly reported side effects include: Discuss your health with your healthcare provider to ensure you are healthy enough for sex. Sexual activity can put an extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease.
Stop sexual activity and get medical help right away if you have symptoms such as chest pain, dizziness, or nausea during sex. are allergic to avanafil or any of the ingredients in STENDRA.take medicines called guanylate cyclase stimulators, which include Adempas ® (riociguat), a medicine that treats pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension.use street drugs called "poppers," such as amyl nitrate and butyl nitrate.