Xenedrine, Dexatrim and Zantrex-3 are examples of over-the-counter diet pills. They were originally manufactured with a powerful combination of ephedra and caffeine to help you lose weight. The combination of ingredients increase energy expenditure or thermo genesis and reduce your appetite. It was thought that the caffeine increases the metabolism by increasing the breakdown of fatty acids. The ephedrine acts on the hypothalamus section of the brain to reduce your appetitte.
In 2003 however, the FDA banned the sale of ephedra-containing drugs due to evidence of increased risk of heart attack. Ephedra was replaced with a mixture of vitamins that include thiamin, riboflavin, vitamin B-6 and folic acid and an ephedra-like substance called synephrine found in citrus fruits. This new combination increased energy while boosting the metabolism.
To get the maximum results from any over the counter diet pills you should start a regular excise program and modify your diet to eat more healthy foods. Diet pills are only meant to be taken for a short period of time-usually 6 months or less. After six months you body will start build up a tolerance to these pills and your weight loss slow down or stop entirely. After that, if you are not eating healthy foods and following an exercise plan, the weight will start come back. Diet pills aren't a quick and easy weight loss solution, however they can help you meet your weight loss goals quicker than dieting and exercise alone.
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