Adipex-P is a prescription weight loss medication that has been approved by the Food and Drug Administration (FDA) for short-term use. It works by suppressing appetite and increasing energy levels. Adipex-P is a Schedule IV controlled substance, which means that it has the potential for abuse and addiction. **How to Buy Adipex-P Online in the USA** There are a few ways to buy Adipex-P online in the USA. One way is to use an online pharmacy. Online pharmacies are websites that sell prescription medication. To buy Adipex-P from an online pharmacy, you will need to provide a prescription from your doctor.