Phentermine vs. Suprenza

If you choose between Phentermine and Suprenza, you probably know that their use causes the same weight loss, so most likely you are interested in the cost of treatment course of overweight or obesity.

Indeed, Suprenza is a brand name of Phentermine, so it’s wrong to compare them as different medications.

If not to talk about their price, there are several differences between Phentermine and Suprenza, although they are minor.


  • went on sale in 1959 and still remains # 1 anti-obesity drug;
  • is delivered in different dosage forms;
  • is manufactured by dozens of pharmaceutical companies.


  • was approved by the FDA in 2011;
  • is available as orally disintegrating tablets;
  • The manufacturer is Akrimax;
  • The current marketing status in the US: Discontinued.

Phentermine and Suprenza are appetite suppressants used to treat obesity including extreme obesity (class 3). They are also prescribed to overweight patients (BMI of 27 to 29.9) with at least one weight-related medical problem, for example:

  • hypertension;
  • pre-diabetes;
  • type 2 diabetes;
  • obstructive sleep apnea.

Phentermine and Suprenza are prescribed to patients who failed to reduce body weight with diets and physical activity. However, these are not magical weight loss pills. You still need to follow a balanced diet and increase activity level during their use.

Phentermine is an appetite-reducing agent that has a great number of derivatives, alternatives and other related drugs so far. Suprenza is one of such Phentermine variants that has the same powerful impact on the body, have identical contraindications and causes the same side effects.

Preserving all the primary Phentermine features, Suprenza differs from it by method of application. This drug is not supposed to be taken with water or swallowed. Instead, it dissolves on the tongue stimulating even a faster effect. Suprenza pills are usually recommended for patients who have problems swallowing ordinary capsules or pills.

Precautions and contraindications

Phentermine and Suprenza have the same precautions and contraindications. However, being used within the mouth cavity, Suprenza may affect the mucous membrane. Thus, this medication is not generally advised for people with sensitive or problematic mouth cavity area.

Before the treatment course, with either Phentermine or Suprenza, it is inevitable to consult a doctor to ensure a high safety and efficiency level of the medication in your exact instance.

Find out what doses to use and what to do if side effects will occur.

Tell your doctor about all the health conditions you have, including heart, kidney and liver complications, thyroid, hypertensions, uncontrollable blood pressure, glaucoma and others. Besides, inform your healthcare provider about other medications you are taking to avoid negative drug interactions.

Take neither Phentermine nor Suprenza if you:

  • have taken MAO inhibitors within the last 14 days;
  • have a history of alcohol or drug abuse;
  • are allergic to components of the medicine;
  • have a history of heart attack, stroke or other heart conditions;
  • are breastfeeding or pregnant (as the drug can affect the health of an unborn or nursing child).

Follow the recommendations of your healthcare specialist and prescribed dose to make the treatment course effective and safe. Never change the adjusted dose, even if you consider it is ineffective. Call your doctor to modify the dose, strength or intake periodicity, so never do it without his/her supervision.

Once you have missed a Phentermine or Suprenza dose, take it as soon as you remember, unless it is close to the time to take the next dose. Do not double the following dose to avoid the risk of drug overuse and side effects caused by it. Evening dose may cause insomnia.

Possible side effects

Differing only in the pharmaceutical form, these drugs have common reactions, while Suprenza has only one extra (irritation of mucosa).

  • Headaches,
  • dizziness,
  • nausea,
  • sleeping problems,
  • fatigue,
  • high blood pressure,
  • seizures,
  • kidney and liver problems,
  • etc. are among the most common downsides of these drugs.

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