OpenClaim

Diethylpropion Side Effects

The most commonly reported side effects of diethylpropion include injury, pain, and off label use, based on 260 FDA adverse event reports from 2004 to 2025. 7.7% of reports found the drug to be ineffective.

Diethylpropion side effects

Percentages show how often each reaction appears relative to total reports for diethylpropion.

1
Drug Ineffective7.7%20
2
Injury6.2%16
3
Pain6.2%16
4
Off Label Use6.2%16
5
Chronic Kidney Disease6.2%16
6
Anxiety5.8%15
7
Diarrhoea5.8%15
8
Dyspnoea5.4%14
9
Vomiting5.0%13
10
Renal Failure4.6%12
11
Malaise4.2%11
12
Pyrexia4.2%11
13
Nausea3.8%10
14
Condition Aggravated3.8%10
15
Pneumonia3.8%10

These are voluntary reports and do not establish that diethylpropion caused these reactions.

Report severity

66.2%Serious172 reports
26.2%Hospitalizations68 reports
5.8%Fatal15 reports

Seriousness is determined by the reporter, not by OpenClaim.

Diethylpropion drug interactions

Other drugs that appear in adverse event reports alongside diethylpropion. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Ethinyl-estradiol6.9%18
2
Drospirenone6.2%16
3
Sodium-oxybate5.4%14
4
Esomeprazole5.0%13
5
Lansoprazole4.6%12
6
Ulipristal-acetate4.2%11
7
Omeprazole4.2%11
8
Dupilumab3.8%10
9
Pantoprazole-sodium3.8%10
10
Penicillin3.5%9
11
Cefuroxime3.1%8
12
Phentermine2.7%7
13
Etanercept2.7%7
14
Dexlansoprazole2.7%7
15
Sodium-chloride2.7%7

Taken alongside

1
Acetaminophen21.9%57
2
Prednisone15.0%39
3
Metformin14.6%38
4
Ibuprofen14.6%38
5
Fluticasone13.1%34
6
Aspirin13.1%34
7
Albuterol13.1%34
8
Ergocalciferol12.7%33
9
Atorvastatin-calcium11.2%29
10
Cetirizine-hydrochloride10.8%28
11
Tramadol-hydrochloride10.8%28
12
Diclofenac10.8%28
13
Alprazolam10.4%27
14
Hydrocodone10.4%27
15
Furosemide10.0%26

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports diethylpropion side effects

73.8% of diethylpropion adverse event reports involve female patients and 20.8% involve male patients. The largest age group is adult at 73%. These figures reflect who reports side effects, not underlying risk.

Sex

Female73.8%
Male20.8%
Unknown5.4%

Age group

< 26.0%
2–114.4%
12–170.5%
18–6473.1%
65+15.9%

What is diethylpropion used for

Conditions and purposes for which patients were taking diethylpropion when the adverse event was reported.

Ankylosing SpondylitisAppetite DisorderBlood Pressure MeasurementDecreased AppetiteDiabetes MellitusDrug Use For Unknown IndicationDecreased AppetiteExercise Lack OfExposure During PregnancyImmunisationImmunisationMeaslesMedical DietMeasles ImmunisationMedical Diet

Showing 15 of 29 indications

Diethylpropion brand names and reporting trend

Diethylpropion is sold under the brand name Tepanil.

Brand names

Tepanil3

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking diethylpropion with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.