Conditions · FAQ
What side effects can erectile dysfunction (ED) medicines cause?
Short answer
Erectile dysfunction (ED) medicines such as sildenafil and tadalafil can cause headache, flushing, upset stomach, nasal congestion, or dizziness. Tadalafil may also cause back or muscle pain. Seek emergency care for an erection lasting more than four hours, chest pain, or sudden loss of vision or hearing.
Common side effects of sildenafil and tadalafil include headache, facial flushing, upset stomach, a stuffy nose, and dizziness. Sildenafil can also cause changes in color vision or blurred vision. Tadalafil may cause back pain or muscle aches. Side effects depend on the medicine, dose, and your health.
Contact your prescriber if side effects are bothersome or keep happening. Do not take extra doses or switch medicines on your own. Alcohol can worsen dizziness and blood pressure effects, especially with heavy drinking. Ask your physician what limits are appropriate for you, and avoid driving if you feel dizzy or your vision is affected.
Some symptoms need urgent action. An erection lasting more than four hours is an emergency, even if it is not painful. Sudden vision loss, sudden hearing loss, chest pain, fainting, or trouble breathing also need prompt medical care. For chest pain after taking ED medicine, call 911 and do not take nitrates. Tell responders which medicine you took and when.
Sources
Written by the Verra clinical team · Medical review pending
General information, not medical advice. If you're in crisis, call or text 988.
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