TARGETS FOR DRUG ACTION
Receptors
Agonists
Antagonists
Receptors
Nicotinic Ach
receptor
Acetylcholine
Nicotine
Tubocurarine
a-bungarotoxin
Beta-adreno-
receptor
Noradrenaline
Isoprenaline
Propranolol
Histamine (H1-
receptor
Histamine
Mepyramine
Histamine (H2 -
receptor)
Impromidine
Ranitidine
Opiate (µ- )
receptor)
Morphine
Naloxone
5HT2 receptor
5-
hydroxytryptamine
Ketanserine
Dopamine (D2-
receptor)
Dopamine
Bromocriptine
Chlorpromazine
Insulin receptor
Insulin
Not known
Oestrogen
receptor
Ethinylestradiol
Tamoxifen
Norethisterone
Danazol
2003-2004