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Miltefosine Side Effects

The most commonly reported side effects of miltefosine include off label use, drug ineffective for unapproved indication, and nausea, based on 365 FDA adverse event reports from 2004 to 2025. 27.9% of reports found the drug to be ineffective.

Miltefosine side effects

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

1
Off Label Use31.8%116
2
Drug Ineffective27.9%102
3
Drug Ineffective For Unapproved Indication14.8%54
4
Nausea13.4%49
5
Condition Aggravated8.2%30
6
Vomiting6.8%25
7
Disease Recurrence6.6%24
8
Product Use In Unapproved Indication6.3%23
9
Renal Failure4.9%18
10
Visceral Leishmaniasis4.9%18
11
Decreased Appetite4.4%16
12
Toxicity To Various Agents4.1%15
13
Gastrointestinal Disorder3.8%14
14
Acute Kidney Injury3.8%14
15
Pancytopenia3.6%13

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

Report severity

96.2%Serious351 reports
32.1%Hospitalizations117 reports
29.9%Fatal109 reports

Seriousness is determined by the reporter, not by OpenClaim.

Miltefosine drug interactions

Other drugs that appear in adverse event reports alongside miltefosine. 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
Amphotericin-b26.0%95
2
Fluconazole25.2%92
3
Voriconazole20.0%73
4
Azithromycin19.7%72
5
Flucytosine15.1%55
6
Pentamidine-isethionate12.6%46
7
Sulfadiazine11.8%43
8
Dexamethasone10.1%37
9
Albendazole7.7%28
10
Tacrolimus7.1%26
11
Rifampin6.6%24
12
Chlorhexidine-gluconate6.3%23
13
Posaconazole6.0%22
14
Prednisone5.8%21
15
Terbinafine4.7%17

Taken alongside

1
Azithromycin11.5%42
2
Fluconazole10.4%38
3
Amphotericin-b10.1%37
4
Dexamethasone8.8%32
5
Prednisolone6.3%23
6
Pentamidine-isethionate5.8%21
7
Flucytosine5.8%21
8
Ceftriaxone-sodium5.5%20
9
Rifampin5.2%19
10
Voriconazole5.2%19
11
Methylprednisolone4.7%17
12
Levetiracetam4.1%15
13
Tacrolimus3.6%13
14
Terbinafine3.0%11
15
Chlorpromazine3.0%11

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 miltefosine side effects

29.9% of miltefosine adverse event reports involve female patients and 64.1% involve male patients. The largest age group is adult at 64%. These figures reflect who reports side effects, not underlying risk.

Sex

Female29.9%
Male64.1%
Unknown6.0%

Age group

< 22.4%
2–116.0%
12–173.9%
18–6463.6%
65+24.2%

What is miltefosine used for

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

Acanthamoeba InfectionAcanthamoeba KeratitisAcquired Immunodeficiency SyndromeAmoebic Brain AbscessAntifungal TreatmentAcanthamoeba InfectionAcanthamoeba KeratitisAmoebiasisAntifungal TreatmentArthritisAspergillus InfectionBalamuthia InfectionBrain AbscessBreast CancerBalamuthia Infection

Showing 15 of 58 indications

Miltefosine brand names and reporting trend

Miltefosine is sold under the brand name Impavido.

Brand names

Impavido352

Quarterly reports (20042025)

2004201520202025

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

Taking miltefosine with another medication?

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