Please cite the main reference and the reference for the page that you are using.
hrh1_human,
ada2a_human,
ada2b_human,
ada2c_human,
hrh2_human,
s1pr1_human,
nk1r_human,
oprm_human,
oprd_human,
oprk_human,
ccr4_human
Cetirizine,
Desloratadine,
Cidoxepin,
Doxepin,
Ketotifen,
Promethazine,
Diphenhydramine,
Fexofenadine,
Loratadine,
Clonidine,
Cimetidine,
Etrasimod,
Tradipitant,
Nalmefene,
Zelnecirnon