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Tenuate Dospan Side Effects

Generic name: diethylpropion

Medically reviewed by Last updated on Jun 27, 2023.

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

Applies to diethylpropion: oral tablet, oral tablet extended release.

Serious side effects of Tenuate Dospan

Along with its needed effects, diethylpropion (the active ingredient contained in Tenuate Dospan) 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 diethylpropion:


Incidence not known

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

Symptoms of overdose

Other side effects of Tenuate Dospan

Some side effects of diethylpropion 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 diethylpropion: oral tablet, oral tablet extended release.


Very rare (less than 0.01%): Valvulopathy

Frequency not reported: Precordial pain, arrhythmia (including ventricular), ECG changes, tachycardia, blood pressure elevation, palpitation, valvular heart disease[Ref]


Rare (less than 0.1%): Pulmonary hypertension

Frequency not reported: Dyspnea[Ref]


Rare (less than 0.1%): Psychotic episodes

Frequency not reported: Insomnia, anxiety, euphoria, depression, dysphoria, tremor[Ref]

Nervous system

Frequency not reported: Convulsive episodes, dyskinesia, overstimulation, nervousness, restlessness, dizziness, jitteriness, somnolence, headache, cerebrovascular accident[Ref]


Frequency not reported: Urticaria, rash, ecchymosis, erythema, hair loss, increased sweating[Ref]


Frequency not reported: Impotence, libido changes, gynecomastia, menstrual upset[Ref]


Frequency not reported: Vomiting, diarrhea, abdominal discomfort, dry mouth, unpleasant taste, nausea, constipation, other GI disturbances[Ref]


Frequency not reported: Dysuria, polyuria[Ref]


Frequency not reported: Bone marrow depression, agranulocytosis, leukopenia[Ref]


Frequency not reported: Muscle pain[Ref]


Frequency not reported: Blurred vision, mydriasis[Ref]


Frequency not reported: Malaise[Ref]


1. Product Information. Tenuate (diethylpropion). Aventis Pharmaceuticals. 2001;PROD.

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.