3d image of ergotamine skeletal formula

ergotamine ergopeptine ergot alkaloid ergoline neurotransmitter biological activity vasoconstrictor migraine attack caffeine childbirth post-partum hemorrhage fungus secondary metabolite claviceps purpurea clavicipitaceae cluster headaches serotonin receptors adrenergic dopamine drug preparation mount treatment medicine medicament remedy cure medication side effect adverse action iatrogenic overdose contraindications interaction pharmacology pharmaceutics pharmaceutical pharmacy pharmacodynamics pharmacokinetics 3d molecule molecular formula skeletal structural structure