Prescription WEIGHT LOSS DRUGS
For many obese people, prescription weight loss drugs are the last hope to reach a weight as close as possible to the ideal weight. On prescription drugs are not indicated for people who want to lose just a few pounds and for children under the age of 16.
Depending on the active substance, weight loss pills act at the nervous system level or at the digestive tract level. These drugs activate the process of weight loss through methods such as:
- appetite suppressing
These medicines act on the nervous system level; they contain substances such as sibutramine, diethylpropion and phentermine, which create the feeling of saturation, even when very small amounts of food are consumed.
- blocking the assimilation of fats
The active substance of these pills is usually orlistat, which acts as a fat blocker. Ingested fats are no longer absorbed into the body, but are eliminated through the bowel movements.
- increasing the metabolic rate
The artificial increase of the metabolic rate (the speed of breaking down and converting into energy the macronutrients from food) is one of the most known methods of loosing weight. Most pills contain all kind chemical components that can increase the metabolic rate.
The most common on prescription weight loss pills are:
Action: at the level of the nervous system
It is recommended for patients with severe obesity that have a body mass index of 30 or more. The active substance is amphepramona, an anorexigen indirect-acting sympathomimetic. Anorexigen substances act by inhibiting hunger center in the brain. Whereas the dependency can be result, the duration of treatment is 4 to 6 weeks. It shall not exceed three months under any circumstances.
Adverse reactions: pulmonary hypertension, addiction, abstinence syndrome, psychotic reactions or psychosis, depression, nervousness, agitation, sleep disorders, Vertigo, tachycardia, hypertension, pericardial pain; isolated-cardiovascular or cerebral-vascular accidents, arrhythmias, EKG changes.
Action: at the digestive system level
It is recommended in the treatment of obesity, along with a diet moderately low in calories. The active substance is orlistat. Xenical does not reduce appetite. XENICAL works in the digestive system by blocking about 30% of the fat in the food eaten. Enzymes from the digestive system, called lipases, help digest (or break down) fat. When taken with meals, XENICAL attaches to the lipases and blocks them from breaking down some of the fat eaten.
The undigested fat cannot be absorbed and is eliminated through the bowel movements. By working this way, XENICAL helps block about one-third of the fat in the foods you eat from being absorbed by your body.
Adverse reactions: fecal urgency, flatulence, bloating, oily or fatty stools.
The doctor is the only one able to recommend such medication! The best method of losing the excess weight and to maintain a healthy weight is to follow a balanced diet, to improve dietary habits and exercising each day.