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Arimoclomol Side Effects

The most commonly reported side effects of arimoclomol include diarrhoea, vomiting, and product size issue, based on 40 FDA adverse event reports from 2021 to 2025.

Arimoclomol side effects

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

1
Diarrhoea12.5%5
2
Vomiting10.0%4
3
Product Size Issue10.0%4
4
Insomnia7.5%3
5
Death5.0%2
6
Pneumonia Aspiration5.0%2
7
Fatigue5.0%2
8
Sepsis5.0%2
9
Seizure5.0%2
10
Product Administration Interrupted5.0%2
11
Product Use Complaint5.0%2
12
Fall5.0%2
13
Product Distribution Issue5.0%2
14
Pneumonia5.0%2
15
Nausea2.5%1

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

Report severity

32.5%Serious13 reports
20.0%Hospitalizations8 reports
7.5%Fatal3 reports

Seriousness is determined by the reporter, not by OpenClaim.

Arimoclomol drug interactions

Other drugs that appear in adverse event reports alongside arimoclomol. 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
Levacetylleucine20.0%8
2
Riluzole2.5%1
3
Miglustat2.5%1

Taken alongside

1
Miglustat25.0%10
2
Levetiracetam12.5%5
3
Diazepam10.0%4
4
Clobazam10.0%4
5
Albuterol10.0%4
6
Glycopyrrolate7.5%3
7
Protriptyline-hydrochloride7.5%3
8
Lacosamide7.5%3
9
Rufinamide5.0%2
10
Fluticasone5.0%2
11
Famotidine5.0%2
12
Oxcarbazepine5.0%2
13
Loratadine5.0%2
14
Lamotrigine5.0%2
15
Trazodone-hydrochloride5.0%2

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 arimoclomol side effects

47.5% of arimoclomol adverse event reports involve female patients and 47.5% involve male patients. The largest age group is adolescent at 35%. These figures reflect who reports side effects, not underlying risk.

Sex

Female47.5%
Male47.5%
Unknown5.0%

Age group

< 20.0%
2–1125.0%
12–1735.0%
18–6435.0%
65+5.0%

What is arimoclomol used for

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

Niemann-pick DiseaseProduct Used For Unknown IndicationProduct Used For Unknown Indication

Arimoclomol brand names and reporting trend

Arimoclomol is sold under the brand name Miplyffa.

Brand names

Miplyffa4

Quarterly reports (20212025)

20212025

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

Taking arimoclomol with another medication?

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