Does Phentermine help with ADHD or not

Phentermine and ADHD: How Does the Drug Affect the Syndrome?

, reviewed by
 – Updated April 19, 2023
, reviewed by
 – Updated April 19, 2023
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Table of Contents

Although the TGA has not approved Phentermine for ADHD as a primary drug, doctors often prescribe it to people with ADHD and obesity.

Phentermine and ADHD have a subtle relationship as drugs to treat the syndrome and diet pills have similar effects:

  • Increase the release of norepinephrine, which is necessary for controlling attention and reducing impulsivity;
  • Stimulate the production of dopamine increasing the level of motivation;
  • Help improve concentration, memory and attention.

Doctors often prescribe Phentermine for ADHD in adults as an additional remedy. However, taking several different drugs for this syndrome at the same time can lead to excessive stimulation of the central nervous system. This abuse of stimulants can cause restlessness and increased anxiety. To avoid psychological side effects, you should consult a doctor.

Can Phentermine make me sleepy with ADHD?

You shouldn’t worry asking why Phentermine makes me sleepy with ADHD. It is one of the drug’s side effects that may affect you even if you don’t have the syndrome. You may also have fatigue and mood swings.

Usually, all symptoms go away within a few weeks when the body adapts to the medicine. If drowsiness persists for a long time, you should consult your doctor. The wrong dosage can lead to this effect.

Does Phentermine help with ADHD or not?

It’s only natural to want to know if Phentermine helps with ADHD if the Therapeutic Goods Administration (TGA) has not approved it as a drug for attention deficit disorder.

The thing is that neurotransmitters released when taking the drug aren’t enough to treat ADHD. Phentermine can relieve the syndrome’s symptoms by enhancing the primary drug’s effect.

Also, It can help if you have a mild form of the syndrome when a norepinephrine neurotransmission disorder is not critical. Then the treatment result will be especially noticeable.

You can combine the drug with other medications if you take no more than one or two drugs for ADHD, and only with your doctor’s permission.


Phentermine is used to reduce the symptoms of ADHD in combination with other drugs. It promotes a more efficient norepinephrine transfer, leading to improved attention and increased concentration levels.

If you are overweight and have symptoms of attention deficit disorder, Phentermine can help with both problems! It is only necessary to remember that the safe use of the drug is possible only in consultation with the doctor.

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