Cymarin (or cymarine) is a

cardiac glycoside Cardiac glycosides are a class of organic compounds that increase the output force of the heart and decrease its rate of contractions by inhibiting the cellular sodium-potassium ATPase pump. Their beneficial medical uses are as treatments for co ...

. Plants of the genus ''

Apocynum ''Apocynum'', commonly known as dogbane or Indian hemp, is a small genus of the flowering plant family Apocynaceae. Its name comes from Ancient Greek , from "away" and "dog", referring to dogbane ('' Cionura erecta''), which was used to pois ...

'', including ''

Apocynum cannabinum ''Apocynum cannabinum'' (dogbane, amy root, hemp dogbane, prairie dogbane, Indian hemp, rheumatism root, or wild cotton) is a perennial herbaceous plant that grows throughout much of North America—in the southern half of Canada and throughou ...

'' and ''

Apocynum venetum ''Apocynum venetum'', commonly known as sword-leaf dogbane, is a plant species in the dogbane family, poisonous but used as a source of fiber, medicine, and nectar for production of honey. Distribution and habitat ''Apocynum venetum'' is conside ...

'', contain cymarin. Cymarin is a cardiac glycoside and an anti-

arrhythmia Arrhythmias, also known as cardiac arrhythmias, heart arrhythmias, or dysrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. A resting heart rate that is too fast – above 100 beats per minute in adults ...

and

cardiotonic A cardiac stimulant is a substance which acts as a stimulant of the heart – e.g., via positive chronotropic or inotropic action. Examples of cardiac stimulant drugs are cocaine and methamphetamine Methamphetamine (contracted from ) is a p ...

agent.

References

External links

* Cardenolides {{cardiovascular-drug-stub