If you are strictly looking for something you can buy without any doctor involvement, your options are different:
Online medical questionnaire and/or video visit with a licensed provider. Consultation fees often start around $25.
Can You Buy Levitra Over the Counter? Everything You Need to Know
Verified sites that require you to upload an existing prescription or offer a consultation.
If you are looking for a quick answer to whether you can walk into a pharmacy and buy without a prescription, the short answer is no in the United States and most other countries .