Table 1.

^*. NIMH Psychoactive Drug Screening Program (PDSP) data for metergoline.

Receptor	Ki, IC50, Kd (nM)	Receptor	Ki, IC50, Kd (nM)	Receptor	Ki, IC50, Kd (nM)
5HT1a	10
5HT1b	28	D1	9	α1a	30/97.7**
5HT1d	0.9	D2	74	α1b	123
5HT1e	1659	D3	14	α1d	91
5HT2a	7.1	D4	4.9	α2a	31
5HT2b	2.6			α2b	41
5HT2c	9.5	H1	98.2**	α2c	30
5HT3	>10,000	H2	110/104**
5HT4	1274	H4	12.7*	DOR	18.9*
5HT5a	562			KOR	63.2*
5HT6	91
5HT7	18	EP3	21.7**	M1	1.2**
SERT	89.7**	EP4	15.2**	M2	17.7**
		NET	1132	M3	3.8**
				M4	36.9**

^*See PDSP website for experimental details for each assay.

^**denotes primary binding assay.