the suppressive effects of delta1-thc on ovulation and gonadotropin secretion were prevented by administration of gonadetropin releasing hormone ( gnrh , 0.2 microgram/rat ) 1 h after the drug , indicating that the central action of delta1-thc was exerted on the hypothalamus and not on the pituitary gland .
C0023610
gnrh
C0020663
hypothalamus