The side effect profile of Staxyn is similar to that of Levitra. Less serious side effects that have been reported include a feeling of warmth or redness in the face, chest, or neck, runny or stuffy nose, headache, upset stomach, or back pain.
The most serious side effects are typically signs of an allergic reaction like hives, swelling of the face, tongue, lips, and throat, or difficulty breathing. This is an emergency and requires emergency treatment. Likewise, dizziness, numbness, or tingling in the chest, arms, neck, or jaw should be investigated right away.
Serious side effects that are not necessarily medical emergencies include vision changes, sudden hearing loss or ringing in the ears. If these occur, contact your doctor. You may or may not need emergency treatment.