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Metaproterenol Side Effects

The most commonly reported side effects of metaproterenol include nausea, dyspnoea, and drug hypersensitivity, based on 508 FDA adverse event reports from 2004 to 2025. 2.8% of reports found the drug to be ineffective.

Metaproterenol side effects

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

1
Nausea4.5%23
2
Dyspnoea4.1%21
3
Drug Hypersensitivity3.9%20
4
Malaise3.3%17
5
Dizziness3.1%16
6
Dizziness3.1%16
7
Fatigue3.0%15
8
Fall3.0%15
9
Vomiting2.8%14
10
Headache2.8%14
11
Drug Ineffective2.8%14
12
Dyspnoea2.8%14
13
Diarrhoea2.8%14
14
Depression2.6%13
15
Diarrhoea2.6%13

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

Report severity

75.2%Serious382 reports
41.1%Hospitalizations209 reports
9.3%Fatal47 reports

Seriousness is determined by the reporter, not by OpenClaim.

Metaproterenol drug interactions

Other drugs that appear in adverse event reports alongside metaproterenol. 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
Salmeterol-xinafoate3.5%18
2
Pantoprazole-sodium3.1%16
3
Fluticasone3.0%15
4
Risperidone3.0%15
5
Prednisone3.0%15
6
Albuterol2.6%13
7
Amlodipine2.6%13
8
Methylphenidate2.6%13
9
Tiotropium-bromide2.4%12
10
Rituximab2.4%12
11
Ergocalciferol2.2%11
12
Tinzaparin-sodium2.2%11
13
Omalizumab2.0%10
14
Penicillin2.0%10
15
Ethinyl-estradiol1.8%9

Taken alongside

1
Acetaminophen15.6%79
2
Fluticasone13.4%68
3
Albuterol13.4%68
4
Prednisone9.6%49
5
Levothyroxine-sodium9.3%47
6
Aspirin9.1%46
7
Montelukast-sodium8.7%44
8
Omeprazole8.7%44
9
Hydrochlorothiazide8.3%42
10
Salmeterol-xinafoate8.1%41
11
Ipratropium-bromide7.3%37
12
Atorvastatin-calcium7.1%36
13
Gabapentin7.1%36
14
Furosemide6.7%34
15
Simvastatin6.7%34

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 metaproterenol side effects

59.8% of metaproterenol adverse event reports involve female patients and 35.4% involve male patients. The largest age group is adult at 54%. These figures reflect who reports side effects, not underlying risk.

Sex

Female59.8%
Male35.4%
Unknown4.7%

Age group

< 20.6%
2–110.3%
12–172.3%
18–6454.0%
65+42.8%

What is metaproterenol used for

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

AmnesiaAntiallergic TherapyAnxietyAsthmaAutismBipolar DisorderBlood CholesterolBradycardiaBronchial DisorderBronchitisChronic Obstructive Pulmonary DiseaseCognitive DisorderConfusional StateCoughDementia

Showing 15 of 61 indications

Metaproterenol brand names and reporting trend

Metaproterenol is sold under the brand name Prometa.

Brand names

Prometa104

Quarterly reports (20042025)

20052010201520202025

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

Taking metaproterenol with another medication?

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