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Appecon Side Effects

Generic name: phendimetrazine

Medically reviewed by Last updated on Nov 10, 2023.

Note: This document contains side effect information about phendimetrazine. Some dosage forms listed on this page may not apply to the brand name Appecon.

Applies to phendimetrazine: oral capsule extended release, oral tablet.

Serious side effects of Appecon

Along with its needed effects, phendimetrazine (the active ingredient contained in Appecon) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking phendimetrazine:


Incidence not known

Get emergency help immediately if any of the following symptoms of overdose occur while taking phendimetrazine:

Symptoms of overdose

Other side effects of Appecon

Some side effects of phendimetrazine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known

For Healthcare Professionals

Applies to phendimetrazine: oral capsule extended release, oral tablet.


Frequency not reported: Valvular heart disease, palpitation, tachycardia, elevated blood pressure, ischemic events, flushing[Ref]


Frequency not reported: Pulmonary hypertension[Ref]


Frequency not reported: Psychotic state, insomnia, agitation, libido changes[Ref]

Nervous system

Frequency not reported: Overstimulation, restlessness, tremor, dizziness, headache[Ref]


Frequency not reported: Dry mouth, nausea, stomach pain, diarrhea, constipation[Ref]


Frequency not reported: Urinary frequency, dysuria[Ref]


Frequency not reported: Blurred vision[Ref]


Frequency not reported: Sweating[Ref]


1. (2001) "Product Information. Prelu-2 (phendimetrazine)." Boehringer-Ingelheim

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.