Phentermine Side Effects: Why You Can’t Buy It Online

Phentermine is a weight-loss medication that works by suppressing your appetite. It’s designed for people who are overweight and have a difficult time losing weight through diet and exercise alone. Like any drug, it has several side effects to consider.

Common Phentermine Side Effects

When taking phentermine, it’s important to make note of any unusual health issues that occur. Those who experience the following side effects should speak to a physician or knowledgeable pharmacist.

  • Digestive upset, including nausea, constipation or diarrhea.
  • Feeling dizzy or lightheaded.
  • Problems falling or staying asleep.
  • Dry mouth.


Serious Phentermine Side Effects

This diet pill can cause serious problems for some users. The most severe issues affect the heart, causing high blood pressure and an irregular heartbeat.

Side effects also include mood and mental issues. It sometimes causes anger, anxiety or irritation. In extreme cases, it leads to hallucinations or body tremors.

These side effects are much less common but it’s still important to watch carefully for them. People should seek help right away if they experience an unusually bad headache, problems speaking, difficulty breathing, chest pains or swelling in the legs and feet.


When to Avoid Use

To avoid experiencing side effects, people dealing with certain issues shouldn’t take phentermine.

  • Lung problems.
  • Heart disease.
  • High blood pressure.
  • Pregnancy.
  • Hyperthyroidism.
  • History of addiction.

Interactions With Phentermine

Some side effects occur when the medication is taken in combination with other drugs. For example, MAO inhibitors can cause a fatal reaction if taken at the same time as phentermine.

Caffeine and medications that regulate the heart can also conflict with phentermine.

Prior to taking taking this drug, users should give their doctors a list of the medicines they currently take. That way the doctor can spot any conflicts and prevent side effects from occurring.