Best weight loss medication for fast weight loss

Large woman losing weightWhat are the different weight loss medications and which one works the best?

Weight-loss drug Approved for How it works Common side effects
Sold as Xenical by prescription Over-the-counter version sold as Alli
Xenical: adults and children ages 12 and older

Alli: adults only

Blocks some of the fat that you eat, keeping it from being absorbed by your body. Stomach pain, gas, diarrhea, and leakage of oily stools.

Note: Rare cases of severe liver injury reported. Should not be taken with cyclosporine.

 Brand name Belviq
Adults Acts on the serotonin receptors in the brain. This may help you eat less and feel full after eating smaller amounts of food. Headaches, dizziness, feeling tired, nausea, dry mouth, cough, and constipation. Should not be taken with selective serotonin reuptake inhibitors (SSRIs) and monoamine oxidase inhibitor (MAOI) medications.
 Brand name Qsymia
Adults A mix of two drugs: phentermine (suppresses your appetite and curbs your desire to eat) and topiramate (used to treat seizures or migraine headaches). May make you feel full and make foods taste less appealing. Tingling of hands and feet, dizziness, taste alterations (particularly with carbonated beverages), trouble sleeping, constipation, and dry mouth.

Note: Sold only through certified pharmacies.


Traditional weight loss medications (drugs that curb your desire to eat), which include

  • phentermine (Adipex)
  • benzphetamine
  • diethylpropion (Equate)
  • phendimetrazine (Bontril)

Sold under many names

Adults Increase chemicals in the brain that affect appetite. Make you feel that you are not hungry or that you are full.

Note: Only FDA approved for a short period of time (up to 12 weeks).

Dry mouth, difficulty sleeping, dizziness, headache, feeling nervous, feeling restless, upset stomach, diarrhea, and constipation

How about the new weight loss medications such as Belviq and Qsymia? Do they really work?

In our experience, these new medications, Belviq and Qsymia.

How do the new weight loss medications Belviq and Qsymia compare to the traditional weight loss medications such as Phentermine, Phendimetrazine, Diethylpropion, Topiramate etc?

  • Can we use the generic Phentermine and Topiramate instead of the more expensive brand name Qsymia and expect similar results?
  • Who are the doctors that are experienced in prescribing these weight loss medications?
  • How long can I be on these weight loss medications?
  • Are these weight loss medications safe?
  • How much do these weight loss medications cost?

To get answers to these questions, contact W8MD Medical Weight Loss Centers of America’s unique insurance physician weight loss program.




About Prab R. Tumpati, MD, Medical Director

Dr. Prab R. Tumpati, MD is a practicing Obesity, sleep, aesthetic and internal medicine physician with offices in New York and Pennsylvania. As the founder and medical director of W8MD, Dr. Tumpati is very experienced and well versed in the science and the art of medicine having helped thousands of patients lose weight, sleep and look better!

Posted on August 29, 2014, in Weight Loss Articles and tagged . Bookmark the permalink. Leave a comment.

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