Phentermine Precautions

Due to the fact that Phentermine produces a potent effect over the entire body, its intake is restricted for multiple types of people. It is generally not recommended to use the drug if you:

  • Are breastfeeding or pregnant, as it can harm an unborn or nursing child;
  • Have had any heart disease, especiallycoronary artery disorder, stroke, heart rhythm issues, etc.
  • Suffer from increased blood pressure;
  • Have glaucoma, overactive thyroid, pulmonary hypertension or any blood conditions;
  • Have had a history of alcohol or drug abuse;
  • Are allergic to Phentermine or its components.

The drug should be administered with caution to patients, who take antiepileptic and psychotropic drugs, incl. those that induce sedation (Ativan, Trazodone).

It is not recommended to combine Phentermine with:

  • othersympathomimetic agents (Ritalin, Concerta, Vyvanse );
  • over the counter cough and cold medicines that contain ephedrine or pseudoephedrine;
  • antidepressants that blockthe neuronal reuptake of serotonin (Paroxetine, Fluoxetine, Clomipramine).

Phentermine is similar in its pharmacological properties to Amphetamine, so exceeding the recommended dose and treatment duration (more than 12 weeks) may contribute to the development of addiction and drug dependence. Therefore, all patients should strictly comply with the established dosing regimen.

Anti-obesity drug Phentermine can reduce the therapeutic effect of oral medications, which are used to reduce high blood pressure (Catapres, Hydopa, Aldomet ). If Phentermine is to be used with antihypertensive medicines, the dose of the latter should be adjusted.

You can not combine this anti-obesity drug with MAO inhibitors (Eldepryl, Zelapar, Parnate). Use of Phentermine can be initiated only 2 weeks after the last dose of a MAO inhibitor.

Combined use of Phentermine with alcohol increases the depressing effect over the central nervous system and increases the likelihood of serious side effects. It’s strongly recommended to consult your healthcare specialist before taking the medication.

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