P OTASSIUM is ani effective agent for the control of arrhythmias assoeiate(I with digitalis aiid lhvl)opotassennia and of manyA arrlhythmias of obscure etiology.1The thera)eutic effect of potassium in cardiac irregularities caused by digitalis has been ascribed to a digitalis anld )otassium "'anitagonlism." For a demonstration of this antagonism, potassium was administered intravenously to pati...

H modifies to a considerable degree the effects of various drugs. Among those investigated in the past have been central nervous system stimulants and depressants, hormones, epinephrine, acetylcholine, insulin, thyroid, ethyl alcohol, Dicumarol, oxygen, carbon dioxide, procaine, and cocaine. However, the effect of hypothermia on the action of digitalis has not been extensively investigated. Mos...

To assess the possible role of digitalis in the etiology of arrhythmia following cardiopulmonary bypass, serum digoxin or digitoxin was determined serially by radioimmunoassay in 24 chronically digitalized patients undergoing open-heart surgery. After an initial fall during bypass probably secondary to intraoperative fluid, serum digitalis rebounded, rising to or surpassing the preoperative val...

The dried leaf of Digitalis purpurea L. (foxglove leaf) was introduced as botanical drug into the London Pharmacopoeia of 1650 and remains actually in all Occidental Pharmacopoeias (digitalis purpureae folium). During last year’s, some specimens of Digitalis L. genus collected in the Northeast region of Portugal were identified by us as natural hybrids Digitalis thapsi L. x Digitalis purpurea L...

P OTASSIUM is ani effective agent for the control of arrhythmias assoeiate(I with digitalis aiid lhvl)opotassennia and of manyA arrlhythmias of obscure etiology.1The thera)eutic effect of potassium in cardiac irregularities caused by digitalis has been ascribed to a digitalis anld )otassium "'anitagonlism." For a demonstration of this antagonism, potassium was administered intravenously to pati...

Herbal Medicine, sometimes referred to as Herbalism or Botanical Medicine, is the use of herbs for their therapeutic or medicinal value. An herb is a plant or plant part valued for its medicinal, aromatic or savory qualities. Herb plants produce and contain a variety of chemical substances that act upon the body. The term digitalis or digitalis compounds are all used to refer to the entire grou...

Data in animals indicate that large amounts of digitalis potentiate arterial baroreflexes and that this factor may be important for the cardiovascular effects of the drug. To determine if arterial baroreflex potentiation also exists after administration of therapeutic doses of digitalis in man, we studied how stimulation and deactivation of arterial baroreceptors by phenylephrine and nitroglyce...

The administration of digitalis glycosides causes a variety of extracardiac effects. In both normal human subjects and in other species, digitalis increases smooth muscle tone of resistance and capacitance vessels. The vasoconstriction is mediated, in part, by a direct action of these glycosides on smooth muscle and, in part, by an increase in alpha-adrenergic tone. Constriction of coronary and...

CONTEXT Few prospective studies to date have investigated the role of obstetric complications in anorexia nervosa, and no study to our knowledge exists for this in bulimia nervosa. OBJECTIVE To explore the role of obstetric complications in the development of eating disorders. DESIGN A blind analysis of the obstetric records of a sample of subjects with anorexia nervosa, with bulimia nervos...