Mequitazine

DB01071InvestigationalSmall molecule

Mequitazine is a histamine H1 antagonist (antihistamine). It competes with histamine for the normal H1-receptor sites on effector cells of the gastrointestinal tract, blood vessels and respiratory tract. It provides... It provides effective, temporary relief of sneezing, watery and itchy eyes, and runny nose due to hay fever and other upper respiratory allergies.

Chemical structure of Mequitazine
Mechanism
Curator reviewed
Primary indication
For the treatment of Hay fever, urticaria (hives) and allergic rhinitisCurator reviewed
Formula / weight
C20H22N2S · 322.467 g/mol (avg)

Resolves to

Structure
InChIKeyHOKDBMAJZXIPGC-UHFFFAOYSA-NSMILESC(C1CN2CCC1CC2)N1C2=CC=CC=C2SC2=CC=CC=C12
Targets

What you can answer from here — as of September 23, 2026

1Protein targetEach mapped to UniProt, with action and pharmacological action
Listed above
826Drug interactionsStructured to mechanism, not free text
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5ContraindicationsEach with its own population and attribute set
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4Marketed productsAcross 1 country and 1 labeller
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1ATC codeIncluding every combination product, plus 18 drug categories
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17+ReferencesStructured and connected to the statements they support
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Which drugs share a target with Mequitazine, and which of those have an active Phase 3 trial?

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