Kamagra 100 mg is a medication used to treat erectile dysfunction, and like any medication, it can have side effects. Common side effects of Kamagra 100 mg may include headache, flushing, indigestion, nasal congestion, dizziness, and visual disturbances. More serious side effects are rare but can include priapism (a prolonged erection lasting more than four hours), sudden hearing loss, and allergic reactions. The side effects of alternative medications for erectile dysfunction can vary depending on the specific medication. For example, other Kamagra 100 medications in the same class as Kamagra, such as sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra), may have similar side effects since they work in a similar way. However, the severity and frequency of side effects can differ among individuals and medications. It's essential to discuss the potential side effects of any medication with your healthcare provider before starting treatment. They can provide personalized advice based on your medical history and current health status.