Phentermine is a medicine prescribed in conjunction with diet and exercise to treat obesity. When used as part of a healthy lifestyle, phentermine helps jump-start weight loss by reducing appetite. Like other weight loss drugs, phentermine can cause unwanted side effects in some users. Understanding the benefits and risks of phentermine diet pills helps you determine whether the drug is right for you. To prevent serious adverse effects, always consult your physician before taking phentermine or other diet drugs.
History
Phentermine was approved to treat obesity in 1959 and became available by prescription in the 1970s. More recently, it gained popularity as one half of Fen-phen, a combination weight loss treatment that included fenfluramine. While fenfluramine was withdrawn from the market in 1997, phentermine is still prescribed as a single agent to treat obesity. Phentermine has been sold under the brand names Fastin, Lonamin and Adipex-P.
Side Effects
Because it raises blood pressure and heart rate, phentermine can be dangerous in people with heart disease or high blood pressure, according to E Med TV. Drug Information Online lists chest pain, high blood pressure and shortness of breath as rare-but-serious side effects associated with phentermine. More common effects include restlessness, insomnia, dry mouth and upset stomach. Because it directly affects the central nervous system, phentermine may lead to abuse and dependence. Withdrawal symptoms like fatigue and low mood can be severe if you attempt to stop taking the drug abruptly.
Limitations
Because of its potential for abuse, phentermine is generally prescribed for no more than four to six weeks at a time. Quitting phentermine often results in weight regain, according to Mayo Clinic. For this reason, it is not a substitute for a healthy diet and regular physical activity. Phentermine is generally reserved for severe obesity and is a poor choice for those seeking to lose only a few pounds.
Prevention/Solution
While medications can be helpful, diet and exercise are still the best ways to maintain a healthy weight. According to Drug Information Online, you shouldn't use phentermine diet pills if you have a history of alcoholism or drug abuse. Never take phentermine without a prescription, and don't increase the dosage without first asking your doctor. To prevent severe withdrawal symptoms, don't stop taking phentermine abruptly after prolonged use. Keep all scheduled appointments and tell your doctor about any side effects you experience while taking phentermine.
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