Digitalis /Dig·i·tal·is/ (dij″ĭ-tal´is) a genus of herbs. D. lana´ta yields digoxin and lanatoside, and the leaves of D. purpu´rea, the purple foxglove, furnish digitalis.
digitalis /dig·i·tal·is/ (dij″ĭ-tal´is)
Digitalis
digitalis
digitalis
digitalis /dig·i·tal·is/ (dij″ĭ-tal´is)
1. the dried leaf of Digitalis purpurea; used as a cardiotonic agent.
2. the digitalis glycosides or cardiac glycosides, collectively.
dig·i·tal·is (d j -t l s)n. 1. A plant of the genus Digitalis, which includes the foxgloves, several species of which are a source of cardioactive steroid glycosides used in the treatment of certain heart diseases. 2. A pharmaceutical prepared from the seeds and dried leaves of the purple foxglove, Digitalis purpurea, and prescribed as a cardiac stimulant in the treatment of congestive heart failure and other disorders of the heart. |
Digitalis
A naturally occuring compound used in the preparation of the medication, digoxin, prescribed to increase the heart rate and strengthen the force of the heart's contractions.
digitalis
[dij′ital′is]
Etymology: L, digitus, finger or toe
a general term for cardiac glycoside. See also digitoxin, digoxin.
indications It is prescribed in the treatment of congestive heart failure and certain cardiac arrhythmias.
contraindications Ventricular fibrillation, ventricular tachycardia, or known hypersensitivity to this drug prohibits its use.
adverse effects The most serious reactions are cardiac arrhythmias that are more common with concomitant diuretics, disorientation, and visual distubances.
Digitalis
a genus of herbs in the family Scrophulariaceae; contains digitalis-related (cardenolide) cardiac glycosides, e.g. digoxin, lanatoside. Includes D. lanata (woolly foxglove), D. purpurea (purple foxglove). Sources of commercial digitalis.
digitalis
dried leaf of Digitalis purpurea; used as a cardiotonic agent. All drugs prepared from this digitalis leaf are members of the same group and principles of administration are the same. The drugs vary according to speed of action and potency. Digitalis can be very effective in the treatment of various cardiac conditions, but its therapeutic range is very narrow; a therapeutic dose is only about one-third less than the dose that will induce toxicity. Toxicity is manifested by vomiting, diarrhea, cardiac irregularity and heart failure.
digitalis glycosides
digitoxin, digoxin.
digitalis
Cardiology A cardiac glycoside first found in foxglove, Digitalis purpurea, now of historic interest; the synthetic derivatives, digoxin and digitoxin are the most popular of the cardiac glycosides
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