by Jacky P. Kael Phentermine 37.5 is a prescription drug and is being sold under a number of brand names. This is prescribed by the doctors for weight loss , but should be only used for a short-term. The drug is manufactured by several companies and is readily available in pharmacies as well as on the Internet. Studies have been conducted on the effectiveness of the drug. It has been seen that those that were administered the drug lost weight faster than those that didn't take the drug. Thi