Viagras is a prescription-only, FDA-approved medication in the USA for treating erectile dysfunction in people with penises. Due to this prescription-only status, if you want to acquire legal, safe, and verified Viagra through an online platform, you will either need to provide a pre-existing prescription or find a service that can both prescribe and provide medication in one. Viagra is very effective for sexual disorders. It helps to increase blood in the penis and maintain a long-lasting hard erection.