Although many patients may not experience any major side effects, some possible common side effects of Stendra can include headaches, feeling dizzy or flushed, achy muscles, fever and a congested nose, as noted by Drugs.com. In some patients, this medication can cause rare side effects, such as painful urination, anxiety, fatigue, sweating, breathing problems and blood in urine. Stendra is a prescribed medication used for erectile dysfunction, and it is also available under the generic name of avanafil.
Distorted vision in one or both eyes, which is known as non-arteritic anterior ischemic optic neuropathy, is a rare side effect, states MedicineNet. If this side effect occurs, seek medical attention as soon as possible and stop taking the medication, advises WebMD. This condition can occur in patients who may have heart problems, hypertension or diabetes. Similarly, if a patient has heart disease and has side effects such as pain in the jaw, chest and left arm, then receiving prompt medical attention is important.
Some other rare side effects associated with Stendra are hearing problems, painful erections and an allergic reaction. A severe allergic reaction can cause throat or facial inflammation.
Additionally, there can also be interactions of Stendra with other drugs, such as nitroglycerin, alpha blockers, certain antifungal drugs and macrolide antibiotics, as noted by WebMD.