Hyoscyamine is an AChR inhibitor with IC50 of 7.5 nM, it is widely used in medicine due to its anticholinergic activity. Hyoscyamine could be used to reduce abdominal discomfort and colonic spasm during a barium enema. (S)-atropine is an atropine with a 2S-configuration. It is functionally related to a (S)-tropic acid. It is a conjugate base of a (S)-atropinium.

Anisodine is a traditional anticholinergics, it and anisodamine possess alpha 1-adrenoceptor blocking properties, they are widely used in the People's Republic of China for the management of acute circulatory shock . Anisodine can protect optic nerve of primary open angle glaucoma (POAG) through improving the visual function and blood supply of optic nerve. The combination of Anisodine and citicoline with standard steroid and mannitol therapy appears to be effective in the treatment of early optic nerve contusion.

Thermopsine exhibits antibacterial activity.

Isopteropodine has antimicrobial activity, it shows strong apoptotic effects on acute leukaemic lymphoblasts, it also shows an ability to stimulate the immune system.

Butylscopolamine bromide is an organic bromide salt of butylscopolamine. It is an antispasmodic drug which can relieve painful stomach cramps (including those linked with irritable bowel syndrome), bladder and menstrual cramps. It has a role as a muscarinic antagonist and an antispasmodic drug. It is a quaternary ammonium salt and an organic bromide salt. It contains a butylscopolamine. Scopolamine butylbromide is a competitive antagonist of muscarinic acetylcholine receptor (mAChR) with an IC50 of 55.3 ± 4.3 nM, it possesses anticholinergic, and anti-tumor effects, it used as an abdominal-specific antispasmodic agent. Scopolamine butylbromide is effective in preventing succinylcholine-induced bradycardia in infants and children.

N-Methylflindersine shows strong toxicity towards brine shrimp larvae, with an LD(50) value of 1.39 microg/ml. It also exhibits potent inhibition against N -formylmethionylleucylphenylalanine-induced superoxide production with IC(50) values less than 12 microM. N-Methylflindersine is an organic heterotricyclic compound, an organonitrogen heterocyclic compound and an oxacycle.

Dehydronuciferine is an isoquinoline alkaloid.