Some people taking Avana 100mg may experience headache, flushing, dizziness, nasal congestion, or indigestion. The intensity of these effects can vary from person to person. The Avana 100mg safety guide provides general information about possible reactions and precautions. Serious symptoms, such as sudden changes in hearing or vision, require prompt medical attention. For additional information about the active ingredient, Avanafil medicine information can be reviewed.