Digitoxin
Digitoxin (pronounced: /ˌdɪdʒɪˈtɒksɪn/) is a cardiac glycoside, a type of drug that can be used to increase the ability of the heart to contract. It is derived from the leaves of the Digitalis purpurea plant, also known as the common foxglove.
Etymology
The term "Digitoxin" is derived from the Latin digitalis, meaning "finger-like", and the Greek toxikon, meaning "poison". This refers to the shape of the foxglove flowers, which resemble the fingers of a glove, and the toxic nature of the compound.
Pharmacology
Digitoxin works by inhibiting the sodium-potassium pump, which leads to an increase in the amount of intracellular calcium. This, in turn, increases the force of the heart's contractions. It is used in the treatment of various heart conditions, including atrial fibrillation and heart failure.
Side Effects
Potential side effects of digitoxin include nausea, vomiting, diarrhea, dizziness, confusion, and vision changes. In severe cases, it can cause cardiac arrhythmias and cardiogenic shock.
Related Terms
See Also
External links
- Medical encyclopedia article on Digitoxin
- Wikipedia's article - Digitoxin
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