Stendra Side Effects

Generic name: avanafil

Note: This document contains side effect information about avanafil. Some of the dosage forms listed on this page may not apply to the brand name Stendra.

Some side effects of Stendra may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For the Consumer

Applies to avanafil: oral tablet

Get emergency medical help if you have any of these signs of an allergic reaction while taking avanafil (the active ingredient contained in Stendra) hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

If you become dizzy or nauseated during sexual activity, or if you have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of avanafil.

Stop using avanafil and call your doctor at once if you have any of these serious side effects:

• changes in vision or sudden vision loss;

• ringing in your ears, or sudden hearing loss;

• chest pain, pounding heartbeats or fluttering in your chest;

• pain, swelling, warmth, or redness in one or both legs;

• shortness of breath, swelling in your hands or feet;

• feeling light-headed, fainting; or

• penis erection that is painful or lasts 4 hours or longer.

Less serious side effects of avanafil may include:

• redness or warmth in your face, neck, or chest;

• headache, mild dizziness;

• cold symptoms such as stuffy nose, sinus pain, or sore throat;

• diarrhea, constipation, upset stomach; or

• back pain.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to avanafil: oral tablet

Cardiovascular

Cardiovascular side effects have included flushing (up to 10.1%), abnormal electrocardiogram (up to 3.0%), hypertension (less than 2%), angina (less than 1%), unstable angina (less than 1%), deep vein thrombosis (less than 1%), and palpitations (less than 1%).

Dermatologic

Dermatologic side effects have included rash (less than 2%), and pruritus (less than 1%).

Gastrointestinal

Gastrointestinal side effects have included dyspepsia (less than 2%), nausea (less than 2%), constipation (less than 2%), diarrhea (less than 2%), gastritis (less than 1%), gastroesophageal reflux disease (less than 1%), hypoglycemia (less than 1%), oropharyngeal pain (less than 1%), stomach discomfort (less than 1%), and vomiting (less than 1%).

General

General side effects have included peripheral edema (less than 1%), and fatigue (less than 1%).

Genitourinary

Genitourinary side effects have included balanitis (less than 1%), increased erection (less than 1%), hematuria (less than 1%), pollakiuria (less than 1%), and urinary tract infection (less than 1%).

Metabolic

Laboratory abnormalities have included increased blood glucose (less than 1%), increased alanine aminotransferase (less than 1%).

Musculoskeletal

Musculoskeletal side effects have included back pain (up to 3.2%), arthralgia (less than 2%), muscle spasms (less than 1%), musculoskeletal pain (less than 1%), myalgia (less than 1%), and pain in extremity (less than 1%).

Nervous system

Nervous system side effects have included headache (up to 12.1%), dizziness (up to 2.0%), insomnia (less than 1%), somnolence (less than 1%), and vertigo (less than 1%).

Psychiatric

Psychiatric side effects have included depression (less than 1%).

Renal

Renal side effects have included nephrolithiasis (less than 1%).

Respiratory

Respiratory side effects have included nasopharyngitis (up to 5.1%), nasal congestion (up to 3.0%), upper respiratory infection (less than 2%), bronchitis (less than 2%), influenza (less than 2%), sinusitis (less than 2%), sinus congestion (less than 2%), cough (less than 1%), exertional dyspnea (less than 1%), epistaxis (less than 1%), and wheezing (less than 1%).

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date, and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This information does not endorse drugs, diagnose patients, or recommend therapy. This drug information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug of drug combination is safe, effective, or appropriate for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of information provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse, or pharmacist.