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Explore substances, mechanisms, and effects. Select a node to read its article and inspect the evidence.

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SubstanceConceptRelationship

A diamond connects all members of one relationship. Type filters keep qualifying context visible.

1 substances · 2 concepts · 3 relationships

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Substances

Diphenhydramine

Concepts

Histamineneurotransmitter
Histamine H1 receptortarget

Relationships

Editorial index: substances classified under histamine. This index does not assert a combined effect. A signaling molecule acting at histamine receptors; effects depend on receptor and tissue.
- Histamineindex concept
- Diphenhydramineindexed substance
Source 1 ↗
Editorial index: substances classified under histamine h1 receptor. This index does not assert a combined effect. A histamine receptor targeted by H1 antihistamines; distinguish it from muscarinic receptor activity.
- Histamine H1 receptorindex concept
- Diphenhydramineindexed substance
Source 1 ↗
H1 antihistamine activity is distinct from the compound's antimuscarinic actions.
- Histaminetransmitter
- Histamine H1 receptortarget
- Diphenhydraminesubstance
Source 1 ↗

Relationship nodes connect multiple concepts in one sourced statement. Member roles identify the substance, biological target, measured outcome, or exposure context. Editorial index relationships group classifications. Connections are not recommendations to combine substances.