Protopine is the isoquinoline alkaloid found primarily in the plant families Berberidaceae, Ranunculaceae, Rutaceae, Fumariaceae. It has diverse biological activities, such as anti-thrombotic, anti-inflammatory, anti-parasitic activity, antimicrobial activity, as well as hepatoprotective effects in animal models. The biological activities of protopine are associated with its ability selectively inhibits K(ATP) channels by targeting on SUR1 subunit. In addition, was discovered that β2 -adrenoceptor (β2 -AR) is a target for antiasthma activities of protopine. On this target, binding of the drug occurs on the amino acid residual of Ser 169 through the formation of hydrogen bonds and receptor‐drug bumps.

Gliclazide (BILXONA®) is an oral sulfonylurea hypoglycemic agent which is used in type 2 diabetes to stimulate insulin production. It differs from other related compounds by an N-containing heterocyclic ring with an endocyclic bond. Gliclazide (BILXONA®) reduces blood glucose levels by stimulating insulin secretion from the beta-cells of the islets of Langerhans. Increase in postprandial insulin and C-peptide secretion persists after two years of treatment. In addition to these metabolic properties, Gliclazide (BILXONA®) has haemovascular properties. It is not available for sale in the United States.

Protopine is the isoquinoline alkaloid found primarily in the plant families Berberidaceae, Ranunculaceae, Rutaceae, Fumariaceae. It has diverse biological activities, such as anti-thrombotic, anti-inflammatory, anti-parasitic activity, antimicrobial activity, as well as hepatoprotective effects in animal models. The biological activities of protopine are associated with its ability selectively inhibits K(ATP) channels by targeting on SUR1 subunit. In addition, was discovered that β2 -adrenoceptor (β2 -AR) is a target for antiasthma activities of protopine. On this target, binding of the drug occurs on the amino acid residual of Ser 169 through the formation of hydrogen bonds and receptor‐drug bumps.