Appetite suppressants also known as anorectics are marketed as an effective aid to losing weight. They work by increasing chemicals in the brain that affect mood and appetite – serotonin and catecholamine, which in turn reduces hunger sensations.
Appetite suppressants are chemically similar to amphetamines, and like the drug they can cause unpleasant side-effects. The main side effects associated with their use include increased heart rate, increased blood pressure, constipation, sweating, insomnia, headache, anxiety and dry mouth. Many users also experience a racing heartbeat or cardiac complications. Indeed several appetite suppressants have been withdrawn from the market over recent years because of unacceptable risks associated with their use.
Most supplements available on the market are not safe to take, even though they claim to be effective in suppressing the appetite and contributing to weight loss.