Common side effects include headaches, flushing, upset stomach, and vision changes. Seek immediate medical help for an erection lasting more than four hours (priapism).

Reputable platforms like Hims , Ro , and Lemonaid Health offer online consultations with licensed medical professionals who can write a prescription if appropriate.

The same active ingredient as Viagra but usually significantly cheaper. You can compare prices at retailers like Amazon Pharmacy or use GoodRx to find discounts at local and online pharmacies. Important Safety Information