Contraindications of Digitalis

Digitalis is also a traditional Chinese medicine that is frequently used in clinical medicine, and its main function is to treat heart failure caused by various reasons. However, if this drug is taken in large quantities, it will cause a series of side effects in the human body and will also lead to a large amount of toxin accumulation in the body. Therefore, when taking digitalis, it is necessary to take it under the guidance of a doctor. Next, I will explain to you the contraindications of digitalis.

Digitalis: Also known as foxglove, poison weed, purple foxglove, and bellflower, it is a biennial or perennial herb densely covered with short hairs. The basal leaves are ovate to ovate-lanceolate, with blunt teeth on the margins and long petiolate. In the spring of the 2nd or 3rd year, flower stalks emerge from the center of the leaf cluster, up to 1-1.5 meters high. The stem leaves are long oval, with fine teeth on the edges, and short petioles or nearly sessile. The raceme is terminal, the corolla is bell-shaped, drooping, leaning to one side, purple-red, with dark purple spots inside. The capsule is conical and the seeds are small. The flowering period is May-June, and the fruiting period is June-July. It is native to the mountainous areas of central and southern Europe. It is now cultivated in large quantities in Zhejiang, Shanghai, Jiangsu and Shandong in China.

The main indications of digitalis:

1. It can be used for heart failure caused by other reasons except heart failure induced by digitalis poisoning.

2. Rapid supraventricular arrhythmias, such as atrial fibrillation and flutter with rapid heart rate, paroxysmal supraventricular tachycardia, etc.

The main contraindications of digitalis:

1. Heart failure with digitalis poisoning;

2. Preexcitation syndrome accompanied by atrial fibrillation or flutter;

3. In patients with obstructive cardiomyopathy, digitalis can aggravate left ventricular outflow tract obstruction, so it should not be used, but it can still be used when accompanied by heart failure;

4. Atrioventricular block can be used with caution only when accompanied by heart failure. When complete atrioventricular block is accompanied by heart failure, digitalis should be used after a ventricular pacemaker is placed;

5. Sinus bradycardia with a ventricular rate below 50 beats per minute, atrial fibrillation or atrial flutter accompanied by complete atrioventricular block or a ventricular rate below 60 beats per minute.

Digitalis: Also known as foxglove, poison weed, purple foxglove, and bellflower, it is a biennial or perennial herb densely covered with short hairs. The basal leaves are ovate to ovate-lanceolate, with blunt teeth on the margins and long petiolate. In the spring of the 2nd or 3rd year, flower stalks emerge from the center of the leaf cluster, up to 1-1.5 meters high. The stem leaves are long oval, with fine teeth on the edges, and short petioles or nearly sessile. The raceme is terminal, the corolla is bell-shaped, drooping, leaning to one side, purple-red, with dark purple spots inside.

The capsule is conical and the seeds are small. The flowering period is May-June, and the fruiting period is June-July. It is native to the mountainous areas of central and southern Europe. It is now cultivated in large quantities in Zhejiang, Shanghai, Jiangsu and Shandong in China.