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Imipramine Side Effects

The most commonly reported side effects of imipramine include fatigue, nausea, and toxicity to various agents, based on 6,991 FDA adverse event reports from 2004 to 2025. 4.4% of reports found the drug to be ineffective.

Imipramine side effects

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

1
Drug Ineffective4.4%307
2
Fatigue3.3%234
3
Nausea3.0%213
4
Toxicity To Various Agents3.0%213
5
Dyspnoea2.9%202
6
Dizziness2.8%194
7
Off Label Use2.8%194
8
Fall2.7%191
9
Completed Suicide2.5%176
10
Headache2.5%174
11
Depression2.4%165
12
Drug Interaction2.3%158
13
Pain2.3%158
14
Anxiety2.2%157
15
Insomnia2.2%155

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

Report severity

75.9%Serious5,309 reports
32.7%Hospitalizations2,289 reports
12.3%Fatal857 reports

Seriousness is determined by the reporter, not by OpenClaim.

Imipramine drug interactions

Other drugs that appear in adverse event reports alongside imipramine. 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
Sodium-oxybate7.6%530
2
Quetiapine-fumarate3.3%233
3
Paroxetine3.2%227
4
Olanzapine3.2%224
5
Gabapentin2.6%182
6
Sertraline-hydrochloride2.4%167
7
Venlafaxine2.3%162
8
Adalimumab2.3%158
9
Pregabalin2.3%158
10
Fluoxetine-hydrochloride2.2%151
11
Risperidone2.2%151
12
Clozapine1.8%126
13
Diazepam1.8%126
14
Acetaminophen1.7%119
15
Clonazepam1.7%118

Taken alongside

1
Acetaminophen13.1%916
2
Aspirin10.3%723
3
Omeprazole9.7%680
4
Ergocalciferol9.3%649
5
Levothyroxine-sodium9.2%643
6
Gabapentin9.0%629
7
Atorvastatin-calcium7.8%543
8
Clonazepam7.5%525
9
Metformin7.5%522
10
Albuterol7.1%493
11
Amlodipine6.6%463
12
Furosemide6.5%456
13
Alprazolam6.1%427
14
Simvastatin6.0%420
15
Metoprolol5.9%410

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 imipramine side effects

61.6% of imipramine adverse event reports involve female patients and 31.5% involve male patients. The largest age group is adult at 62%. These figures reflect who reports side effects, not underlying risk.

Sex

Female61.6%
Male31.5%
Unknown7.0%

Age group

< 20.8%
2–112.7%
12–172.8%
18–6462.2%
65+31.5%

What is imipramine used for

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

Abdominal DiscomfortAbdominal PainAbnormal BehaviourAbnormal DreamsAbuliaAccidental ExposureAdjustment Disorder With Depressed MoodAdverse Drug ReactionAffective DisorderAggressionAgitationAgoraphobiaAnalgesiaAnalgesic TherapyAnger

Showing 15 of 298 indications

Imipramine brand names and reporting trend

Imipramine is sold under brand names including Tofranil-pm, Pramine.

Brand names

Tofranil-pm188
Pramine84

Quarterly reports (20042025)

20052010201520202025

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

Taking imipramine with another medication?

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