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Histamine

Vitamin · Unknown

VitaminUnknown
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
, in breastfeeding women, and in children under 12 years. All
FDA category + note

Mechanism

Histamine is an endogenous mediator primarily involved in immediate, rapidly-evolving reactions compatible with an immunological mechanism, such as drug allergy. Its release can lead to clinical features like anaphylaxis, with erythema, urticaria or angioedema, hypotension, and bronchospasm.

Pharmacokinetics

Metabolism
Histamine undergoes methylation.

Pregnancy & lactation

Pregnancy

, in breastfeeding women, and in children under 12 years. All

Drug interactions

Adrenaline
Moderate
Textbook

Physiological antagonism on bronchial muscles and blood pressure.

Source: KDT 7e · p58

11 additional low-confidence interactions hidden — those rows lack a documented mechanism or management plan in our sources.

Related guidelines

Other Vitamin drugs

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Continue into a citation-backed clinical answer with the drug context already attached.

Sources: KD Tripathi 7e, Katzung, BNF, Nelson·Verified: 2026-05-10 · House clinical team