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Ionamin Side Effects

Generic Name: phentermine

Note: This page contains information about the side effects of phentermine. Some of the dosage forms included on this document may not apply to the brand name Ionamin.

For the Consumer

Applies to phentermine: oral capsule, oral capsule extended release, oral tablet, oral tablet disintegrating

In addition to its needed effects, some unwanted effects may be caused by phentermine (the active ingredient contained in Ionamin). In the event that any of these side effects do occur, they may require medical attention.

Major Side Effects

You should check with your doctor immediately if any of these side effects occur when taking phentermine:

Rare
  • Seeing, hearing, or feeling things that are not there
  • severe mental changes
Incidence not known:
  • Chest pain
  • decreased ability to exercise
  • dizziness
  • fainting
  • fast, irregular, pounding, or racing heartbeat or pulse
  • headache
  • numbness or tingling in the arms or legs
  • swelling of the feet or lower legs
  • trembling or shaking of the legs, arms, hands, or feet
  • trouble breathing
  • trouble with thinking, speaking, or walking
  • weakness

Minor Side Effects

Some of the side effects that can occur with phentermine may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

Incidence not known:
  • Decreased interest in sexual intercourse
  • difficulty having a bowel movement (stool)
  • dry mouth
  • false or unusual sense of well-being
  • hives or welts, itching, or skin rash
  • inability to have or keep an erection
  • increased in sexual ability, desire, drive, or performance
  • increased interest in sexual intercourse
  • loss in sexual ability, desire, drive, or performance
  • redness of the skin
  • unpleasant taste

For Healthcare Professionals

Applies to phentermine: compounding powder, oral capsule, oral capsule extended release, oral tablet, oral tablet disintegrating

Cardiovascular

Frequency not reported: Regurgitant cardiac valvular disease, primary pulmonary hypertension, palpitations, tachycardia, elevated blood pressure, precordial pain, ischemic events, angina, myocardial infarction, cardiac failure, cardiac arrest[Ref]

Dermatologic

Frequency not reported: Rash[Ref]

Gastrointestinal

Frequency not reported: Dry mouth, unpleasant taste, diarrhea, constipation, other gastrointestinal disturbances, nausea, vomiting, abdominal cramps[Ref]

Genitourinary

Frequency not reported: Micturition disturbances[Ref]

Hypersensitivity

Frequency not reported: Urticaria[Ref]

Nervous system

Frequency not reported: Overstimulation, restlessness, nervousness, dizziness, euphoria, dysphoria, tremor, headache, fatigue, cerebrovascular events[Ref]

Other

Frequency not reported: Facial edema[Ref]

Psychiatric

Frequency not reported: Insomnia, psychosis, impotence, libido changes, depression, hallucinations[Ref]

References

1. "Product Information. Lomaira (phentermine)." KVK-Tech Inc, Newtown, PA.

2. "Product Information. Adipex-P (phentermine)." Teva Pharmaceuticals (formerly Gate Pharmaceuticals), Sellersville, PA.

3. "Product Information. Phentermine Hydrochloride (phentermine)." Teva Pharmaceuticals USA, North Wales, PA.

4. Cerner Multum, Inc. "Australian Product Information." O 0

Not all side effects for Ionamin may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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