Please cite the main reference and the reference for the page that you are using.
drd2_human,
oprm_human,
ada2a_human,
ada2b_human,
ada2c_human,
aa1r_human,
oprd_human,
oprk_human,
cnr1_human,
drd4_human,
drd3_human,
oxyr_human,
cnr2_human,
hrh1_human
Cabergoline,
Pramipexole,
Tapentadol,
Tramadol,
(r,r)-tramadol,
Hydrocodone,
Naltrexone,
Hydromorphone,
Buprenorphine,
Methadone,(r)(-),
Morphine,
Oxymorphone,
Cannabidiol,
δ9-tetrahydrocannabinol,
Oxytocin,
Ketotifen