Useful Properties of digitalis
Digitalis purpurea - plant of the family figwort. Unofficial its title: Forest bell, bell forest, grass glove. Interest in medicine make no flashy flowers foxglove, and its leaves. The plant is biennial and leaves for therapeutic purposes collect only the second year after planting. Flowers foxglove also appear in the second year of life plants in the summer. They can be purple, pink, white, and yellow.
The leaves of the foxglove contain cardiac glycosides - substances tonic activity of the heart muscle, helps to eliminate the arrhythmia: digoxin, lanatozidy E, C, A, B, D, digitoxin, gitoksin, atsetildigitoksin, digotonin, purpureaglikozidy A and B.
The most active and digoxin have lanatozid S. digitalis preparations, which include the glycosides are used in medical practice for the treatment of chronic and acute forms of circulatory failure, tachycardia, hypertension, coronary sclerosis, mitral valve, myocardial dystrophy, acute heart failure.
In this note such properties digitalis: it increases the power of cardiac output prolongs diastole, reducing the threshold of excitability of cardiac conduction system, enhance the level of calcium in the plasma. All this stabilizes the circulation in the myocardium and blood flow in vessels. Digitalis purpurea glycosides accumulate in the tissues, and because of their long-lasting therapeutic effect. It is noted, and is the property of Digitalis - its member saponin and digitonin increase the absorption of other glycosides taken by the patient.
The pharmaceutical industry produces the following digitalis preparations: tablets containing dry concentrate leaves, powder of dried leaves, extract from the leaves, pills Gitoksin, Digitoxin, Kordigit, solutions and tablets and digoxin Tselanid.
Medications based on digitalis purpurea Tselanid and digoxin are fast, so they can be used in acute cases. To stop the attack glycosides are administered intravenously, and for treatment of chronic heart disease prescribed tablets. After intravenous administration of digitalis cardiac properties are manifested through 15-30min, but the oral route - by 1 5-2ch after taking the pills.
Contraindications to the use of digitalis
Digitalis - a poisonous plant with a number of serious side effects, so apply it leaves yourself at home is not recommended. Grow foxglove flowers in home gardens only for decorative purposes.
Digitalis preparations can be taken only under the supervision of a cardiologist in a hospital - due to improper dosing means may be poisoning.
Digitalis poisoning symptoms: lower heart rate, shortness of breath, decrease in the frequency of urination, nausea, irregular heartbeat, diarrhea, headache, dizziness, blue lips, choking, severe body aches, tremors, hallucinations, convulsions, mental disorder. Considered a lethal dose of 2, 25 g of digitalis.
Treatment of poisoning begin with immediate clearing of intestines, stomach, activated charcoal or other adsorbent. Be sure to seek medical help. Typically, patients admitted with poisoning digitalis is prescribed caffeine, atropine, potassium chloride, unitiol.
Digitalis is contraindicated in case of: acute myocardial infarction, complete AV block and other manifestations of severe bradyarrhythmias, active rheumatic heart disease, aortic stenosis, endocarditis, compensated heart diseases.