Over-the-counter (OTC) appetite suppressants can be purchased both online and in stores. There are a host of non-prescription solutions you can leverage in order to help control your appetite. The most effective method will vary based on a number of individual factors, including your age, gender, and how much weight you have to lose. You should always consult with your doctor when taking a new supplement, but purchasing over-the-counter doesn't require a doctor's permission. It's up to you to discontinue use if you do run into any of the possible side effects of appetite suppressant supplements.Your doctor may prescribe you an appetite suppressant so that they can monitor the side effects and results. If you have an underlying health issue, such as high blood pressure or Type 2 diabetes, an appetite suppressant that can be used safely under your doctor's supervision is your best bet.