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Metreleptin Side Effects

The most commonly reported side effects of metreleptin include therapy cessation, product dose omission issue, and weight decreased, based on 1,181 FDA adverse event reports from 2008 to 2025. 5.9% of reports found the drug to be ineffective.

Metreleptin side effects

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

1
Therapy Cessation8.0%94
2
Product Dose Omission Issue7.7%91
3
Weight Decreased7.6%90
4
Blood Glucose Increased6.6%78
5
Drug Ineffective5.9%70
6
Therapy Interrupted5.6%66
7
Nausea4.9%58
8
Off Label Use4.7%56
9
Treatment Noncompliance4.3%51
10
Weight Increased4.2%50
11
Blood Triglycerides Increased4.2%50
12
Decreased Appetite3.6%43
13
Injection Site Pain3.6%42
14
Maternal Exposure During Pregnancy3.5%41
15
Hypoglycaemia3.4%40

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

Report severity

52.5%Serious620 reports
29.6%Hospitalizations350 reports
6.3%Fatal74 reports

Seriousness is determined by the reporter, not by OpenClaim.

Metreleptin drug interactions

Other drugs that appear in adverse event reports alongside metreleptin. 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
Insulin1.6%19
2
Metformin1.0%12
3
Fenofibrate0.5%6
4
Ticagrelor0.4%5
5
Pioglitazone-hydrochloride0.4%5
6
Pramlintide-acetate0.3%4
7
Lisinopril0.3%4
8
Amoxicillin0.3%4
9
Methotrexate0.3%3
10
Canagliflozin0.3%3
11
Empagliflozin0.3%3
12
Enalapril-maleate0.2%2
13
Aspirin0.2%2
14
Apixaban0.2%2
15
Levothyroxine-sodium0.2%2

Taken alongside

1
Insulin32.4%383
2
Metformin24.7%292
3
Sterile18.5%219
4
Fenofibrate14.7%174
5
Ergocalciferol14.1%167
6
Lisinopril13.8%163
7
Levothyroxine-sodium11.7%138
8
Atorvastatin-calcium10.8%127
9
Gabapentin7.5%88
10
Pioglitazone-hydrochloride7.3%86
11
Aspirin6.2%73
12
Acetaminophen5.9%70
13
Fluticasone5.7%67
14
Albuterol5.7%67
15
Metoprolol5.6%66

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 metreleptin side effects

66.8% of metreleptin adverse event reports involve female patients and 16.5% involve male patients. The largest age group is adult at 69%. These figures reflect who reports side effects, not underlying risk.

Sex

Female66.8%
Male16.5%
Unknown16.7%

Age group

< 21.3%
2–118.6%
12–1714.8%
18–6469.2%
65+6.0%

What is metreleptin used for

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

Acquired Lipoatrophic DiabetesAcanthosis NigricansAcquired Generalised LipodystrophyAcquired Lipoatrophic DiabetesAdrenal InsufficiencyAdrenocortical Insufficiency AcuteAutoimmune HepatitisBlood Glucose IncreasedBlood Triglycerides IncreasedCarpus CurvusCongenital AnomalyCongenital Generalised LipodystrophyComplications Of Bone Marrow TransplantCongenital AnomalyCongenital Generalised Lipodystrophy

Showing 15 of 60 indications

Metreleptin brand names and reporting trend

Metreleptin is sold under the brand name Myalept.

Brand names

Myalept930

Quarterly reports (20082025)

2008201520202025

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

Taking metreleptin with another medication?

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