Drug reference

METAMIZOLE

MSF Essential Drugs (January 2026)

Source: MSF Essential Drugs (January 2026)
PDF pages: 621, 622

Overview

Therapeutic Action

Analgesic, antipyretic

PDF page 621

Indications

Pain, fever

PDF page 621

Safety

Contraindications Adverse Effects Precautions

May cause: severe agranulocytosis, potentially fatal, regardless of dose or duration of treatment; allergic reactions, anaphylactic shock. Pregnancy: CONTRA-INDICATED Breast-feeding: CONTRA-INDICATED

PDF page 621

Dose and formulations

Forms And Strengths

500 mg tablet

PDF page 621

Dosage

Adult: 500 mg to 1 g 2 to 3 times daily

PDF page 621

Duration

As short as possible.

PDF page 621

Clinical care

Remarks

Metamizole is not included in the WHO list of essential medicines.

PDF page 621

Storage

Below 25 °C

PDF page 622

Dose text by age group

Adult

500 mg to 1 g 2 to 3 times daily

PDF page 621

Age labels are extracted for navigation. Check the complete source section and current local guidance before clinical use.

Drug reference

METAMIZOLE

MSF Essential Drugs (January 2026)

Source: MSF Essential Drugs (January 2026)
PDF pages: 621, 622

Overview

Therapeutic Action

Analgesic, antipyretic

PDF page 621

Indications

Pain, fever

PDF page 621

Safety

Contraindications Adverse Effects Precautions

May cause: severe agranulocytosis, potentially fatal, regardless of dose or duration of treatment; allergic reactions, anaphylactic shock. Pregnancy: CONTRA-INDICATED Breast-feeding: CONTRA-INDICATED

PDF page 621

Dose and formulations

Forms And Strengths

500 mg tablet

PDF page 621

Dosage

Adult: 500 mg to 1 g 2 to 3 times daily

PDF page 621

Duration

As short as possible.

PDF page 621

Clinical care

Remarks

Metamizole is not included in the WHO list of essential medicines.

PDF page 621

Storage

Below 25 °C

PDF page 622

Dose text by age group

Adult

500 mg to 1 g 2 to 3 times daily

PDF page 621

Age labels are extracted for navigation. Check the complete source section and current local guidance before clinical use.