HRH1 (Histamine H1 Receptor)
HRH1
G-protein coupled receptor (Gq) mediating allergic and inflammatory responses.
Function
H1 antagonists (antihistamines) block histamine-induced vasodilation, itching, and bronchoconstriction.
Drugs Acting on This Target
| Drug | Action | Primary |
|---|---|---|
| Cetirizine | Antagonist | Yes |
| Diphenhydramine | Antagonist | Yes |
| Loratadine | Antagonist | Yes |
| Quetiapine | Antagonist | — |
| Trazodone | Antagonist | — |
Related Targets
AGTR1 (Angiotensin II Type 1 Receptor)
AGTR1
ADRB1 (Beta-1 Adrenergic Receptor)
ADRB1
ADRB2 (Beta-2 Adrenergic Receptor)
ADRB2
CTLA4 (Cytotoxic T-Lymphocyte Antigen 4)
CTLA4
DRD2 (Dopamine D2 Receptor)
DRD2
HRH2 (Histamine H2 Receptor)
HRH2
OPRM1 (Mu-Opioid Receptor)
OPRM1
PDCD1 (Programmed Cell Death Protein 1)
PDCD1