Diet pills are available in plenty in the medical stores near you. But, while shopping, you must see that the diet pill you are getting is the right and genuine one. In other words, not all diet pills are effective and safe to the human body. In this article, we see about Brazilian diet pills, Phentermine 37.5 mg diet pills, and those containing Ephedra and Hoodia, and its effectiveness and other aspects, both positive and negative.

No prescription Phentermine-as the term suggests-can be used without any prescription. Such drugs contain green tea or caffeine (the former type is more these days), which suppresses the appetite and increases the basal metabolism thereby burning away those extra fat. Earlier, no prescription drugs used Ephedra, but it was banned by FDA in 2003 citing health consequence. Even though the ban stands annulled as in 2006, its accepted levels are very much limited according to the new guidelines laid down by the FDA.

Brazilian diet pills, when hit the markets few years back, created a quite lot of stir amongst the public and the media alike. It produced quick results and the Brazilian diet pills were cheaper as well. But, of late, researches have showed that some chemicals used in Brazilian diet pills are injurious to human body. Most of the samples tested by authorities found to contain higher concentrations of amphetamines and certain natural extracts that mimics the negative effects of Ephedra or Ephedra based diet pills. Therefore, from a customer point of view, it would be prudent to abstain from using Brazilian diet pills.

Hoodia based drugs, on the other hand, works similarly to that of no prescription diet pills, by suppressing the natural appetite for food. Even though some websites say Hoodia based diet pills are free from any side effects, recent studies have revealed that the chemical-steroidal glycosides in Hoodia-badly affects nerve cells in the hypothalamus, which controls and monitor the blood glucose levels.

To sum it up, strictly speaking, no diet pill is completely safe. Each has its own advantages and disadvantages. Hence it is advisable to take a doctor's advice before embarking on the journey towards the weight loss world. But, if it is no prescription diet pills, take care to see that it is a genuine and safe product. After all, losing weight does not mean running your health!