Cardenolides

Digoxin, sold under the brand name Lanoxin among others, is a medication used to treat various heart conditions. Most frequently it is used for atrial fibrillation, atrial flutter, and heart failure. Digoxin is one of the oldest medications used in the field of cardiology. It works by increasing myocardial contractility, increasing stroke volume and blood pressure, reducing heart rate, and somewhat extending the time frame of the contraction. Digoxin is taken by mouth or by injection into a vein. Digoxin has a half life of approximately 36 hours given at average doses in patients with normal r

Digitoxin is a cardiac glycoside used for the treatment of heart failure and certain kinds of heart arrhythmia. It is a phytosteroid and is similar in structure and effects to digoxin, though the effects are longer-lasting. Unlike digoxin, which is eliminated from the body via the kidneys, it is eliminated via the liver, and so can be used in patients with poor or erratic kidney function. While several controlled trials have shown digoxin to be effective in a proportion of patients treated for heart failure, the evidence base for digitoxin is not as strong, although it is presumed to be simila

Ouabain or (from Somali waabaayo, "arrow poison" through French ouabaïo) also known as g-strophanthin, is a plant derived toxic substance that was traditionally used as an arrow poison in eastern Africa for both hunting and warfare. Ouabain is a cardiac glycoside and, in lower doses, can be used medically to treat hypotension and some arrhythmias. It acts by inhibiting the Na/K-ATPase, also known as the sodium–potassium ion pump. However, adaptations to the alpha-subunit of the -ATPase via amino acid substitutions, have been observed in certain species, namely some herbivore insect species, th

Digoxigenin (DIG) is a steroid found exclusively in the flowers and leaves of the plants Digitalis purpurea, Digitalis orientalis and Digitalis lanata (foxgloves), where it is attached to sugars, to form the glycosides (e.g. digoxin, lanatoside C).

Convallatoxin is a glycoside extracted from Convallaria majalis.

A cardenolide is a type of steroid. Many plants contain derivatives, collectively known as cardenolides, including many in the form of cardenolide glycosides (cardenolides that contain structural groups derived from sugars). Cardenolide glycosides are often toxic; specifically, they are heart-arresting. Cardenolides are toxic to animals through inhibition of the enzyme Na+/K+-ATPase, which is responsible for maintaining the sodium and potassium ion gradients across the cell membranes.

Cymarin (or cymarine) is a cardiac glycoside. Plants of the genus Apocynum, including Apocynum cannabinum and Apocynum venetum, contain cymarin. Cymarin is a cardiac glycoside and an anti-arrhythmia and cardiotonic agent.

Oleandrin is a cardiac glycoside found in the poisonous plant oleander (Nerium oleander L.). As a main phytochemical of oleander, oleandrin is associated with the toxicity of oleander sap, and has similar properties to digoxin. Oleandrin and other oleander chemicals are potentially toxic to the heart, liver, and kidneys.

Digitoxigenin, a cardenolide, is the aglycone of digitoxin.

chemical compound

Acetyldigitoxin is a cardiac glycoside. It is an acetyl derivative of digitoxin, found in the leaves of Digitalis species. It is used to treat cardiac failure, particularly that associated with tachycardia.

Deslanoside (trade name Cedilanide in Brazil) is a cardiac glycoside, a type of drug that can be used in the treatment of congestive heart failure and cardiac arrhythmia (irregular heartbeat). It is found in the leaves of Digitalis lanata, the Woolly Foxglove.

Metildigoxin (INN, or medigoxin BAN, or methyldigoxin) is a cardiac glycoside, a type of drug that can be used in the treatment of congestive heart failure and cardiac arrhythmia (irregular heartbeat). The substance is closely related to digoxin; it differs from the latter only by an O-methyl group on the terminal monosaccharide.

k-Strophanthidin is a cardenolide found in species of the genus Strophanthus. It is the aglycone of k-strophanthin, an analogue of ouabain. k-strophanthin is found in the ripe seeds of Strophanthus kombé and in the lily Convallaria.

α-Acetyldigoxin is a cardiac glycoside found in plants of the genus Digitalis, including Digitalis lanata. It is an acetyl derivative of digoxin and an isomer of β-acetyldigoxin.

Gitoformate (INN, or pentaformylgitoxin, trade name Dynocard) is a cardiac glycoside, a type of drug that can be used in the treatment of congestive heart failure and cardiac arrhythmia (irregular heartbeat). Produced by Madaus, it is not available in the US, and does not seem to be available in Europe either.

Peruvoside (or cannogenin thevetoside) is a cardiac glycoside for heart failure.

Neoconvalloside is a cardenolide glycoside extracted from Convallaria majalis.