Appetite suppressants are tablets that repress the hunger centre in the diencephalon (interbrain). They suppress appetite and in turn the intake of food. Many appetite suppressants have an immediate effect on the brain and therewith on one's disposition. For this reason they are only available on prescription.
Appetite Suppressants and losing weight
Appetite suppressants alone do not bring about long-term weight loss. The intake of appetite suppressants alone can lead to short-term weight loss if anything. The lost weight will come back as soon as you have stopped taking the appetite suppressants. The reason for this is that the root of the problem - for example former eating habits - have not changed on a long term basis. Appetite suppressants have, to some extent, very strong side effects. They can increase the general blood pressure as well as the pressure in the lungs. They can also increase the pulse rate, nervousness and bring about insomnia. Appetite suppressants can lose their effectiveness and if taken for long periods of time cause addiction.
Appetite suppressants and other medication used for weight loss can for e.g. ease the start of an extensive weight loss programme. As a result of the side effects, it is advisable to only take the medication - if at all - on a short term basis and under the supervision of a doctor. If and how over-the-counter appetite suppressants have an effect is debatable.
The Serotonin Power Diet: Eat Carbs--Nature's Own Appetite Suppressant--to Stop Emotional Overeating and Halt Antidepressant-Associated Weight Gain, Judith Wurtman, Nina T. Frusztajer
Hungry Girl to the Max!: The Ultimate Guilt-Free Cookbook, Lisa Lillien
Eat to Live: The Amazing Nutrient-Rich Program for Fast and Sustained Weight Loss, Revised Edition, Joel Fuhrman