||Dead Men's Bells, Fairy Cap, Finger Flower, Foxglove, Lion's Mouth, Woolly Foxglove
||Italy, Balkans, Hungary, Turkey.
||Well-drained, rich, neutral to acid soil in partial shade. May develop crown rot and root rot in damp conditions.
||By seed sown in autumn or spring. Sow on the surface, because seed needs light to germinate.
||Leaves are picked before flowering and dried for commercial extraction of alkaloids.
||A very bitter, diuretic herb that strengthens heart contractions.
||Internally for heart failure and irregular heart beat. Excess causes nausea, vomiting, slow pulse, visual disturbance, anorexia, and fainting. For use by professional practitioners only.
To treat headaches, paralysis, ulcers, heart failure, asthma, and constipation.
||There is no typical dose of digitalis, which today is considered obsolete because its effects vary so widely.
|Possible Side Effects:
||Digitalis's side effects include loss of appetite, vomiting, diarrhea, headache, and acute confusion. Digitalis contains cardiac glycosides, which can help control irregular heartbeat, reduce the backup of blood and fluid in the body, and increase blood flow through the kidneys, helping to excrete sodium and relieve swelling in body tissues. However, a buildup of cardiac glycosides can occur, especially when the herb is combined with certain medications or other herbs that contain cardiac glycosides, causing arrhythmias, abnormally slow heartbeat, heart failure, and even death.
|Taking digitalis with these drugs may increase the risk of arrhythmia (irregular heartbeat):
|Albuterol, (Proventil, Ventolin)
||Brimonidine, (Alphagan P, PMS-Brimonidine Tartrate)
||Isoetharine, (Beta-2, Bronkosol)
|Pentoxifylline, (Pentoxil, Trental)
||Phenylephrine, (Neo-Synephrine Extra Strength, Vicks Sinex Nasal Spray)
||Pseudoephedrine, (Dimetapp Decongestant, Sudafed)
||Quinidine, (Novo-Quinidin, Quinaglute Dura-Tabs)
||Theophylline, (Elixophyllin, Theochron)
||Theophylline and Guaifenesin, (Elixophyllin-GC, Quibron)
|Taking digitalis with these drugs may increase the risk of cardiac glycoside toxicity:
|Acetazolamide, (Apo-Acetazolamide, Diamox Sequels)
||Bumetanide, (Bumex, Burinex)
||Chlorthalidone, (Apo-Chlorthalidone, Thalitone)
|Ethacrynic Acid, (Edecrin)
||Furosemide, (Apo-Furosemide, Lasix)
||Hydrochlorothiazide, (Apo-Hydro, Microzide)
||Hydroflumethiazide, (Diucardin, Saluron)
|Indapamide, (Lozol, Nu-Indapamide)
||Mannitol, (Osmitrol, Resectol)
||Methazolamide, (Apo-Methazolamide, Neptazane)
||Methyclothiazide, (Aquatensen, Enduron)
|Metolazone, (Mykrox, Zaroxolyn)
||Olmesartan and Hydrochlorothiazide, (Benicar HCT)
|Trichlormethiazide, (Metatensin, Naqua)
||Urea, (Amino-Cerv, UltraMide)
||Xipamide, (Diurexan, Lumitens)
|Lab Test Alterations:
||May normalize arrhythmias and electrocardiogram (ECG) readings.
||Overdose of digitalis may trigger irregular heartbeat, heart failure.
- Increased risk of cardiac glycoside toxicit when used with other herbs tha contain cardiac glycosides, such as Black Hellebore, Calotropis, Motherwort, and others.
- Increased risk of potassium depletion when used in conjunction with Horsetail Plant or Licorice.
- Increased risk of cardiotoxicity due to potassium depletion when taken with cardioactive herbs, such as Adonis, Lily of the Valley, and Squill.
- Increased risk of potassium depletion when used with other stimulant laxative herbs, such as Black Root, Cascara Sagrada, Castor Oil, and Senna.
||All parts are toxic if eaten. This herb and D. purpurea, especially in the form of glycosides, are subject to legal restrictions in some countries.
||The Encyclopedia or Herbs by Deni Brown Copyright © 1995, 2001 pp 193-194
The Essential Herb-Drug-Vitamin Interaction Guide by Geo. T. Grossberg,MD and Barry Fox,PhD Copyright©2007 Barry Fox,PhD. Pp.186-188