Adverse Reactions and Side EffectsThis product is safe to be decocted in regular dosage, and very few patients will have fever and other discomforts. The volatile oil of this product can be injected into the muscle dizziness, nausea, vomiting. Large doses of internal administration can occasionally see skin flushing and hematuria, high blood pressure. Symptoms of toxicity can be seen in animal experiments with high dose administration, manifested as dyspnea and convulsions.

Precautions and contraindications

1.Strictly grasp the contraindications, deficiency of yin and hyperactivity of yang, excessive sweating, seminal slippery people should be cautious.

2.Strictly grasp the dosage, according to the condition and individual dosage, prohibit the application of overdose. Calamus dosage should be based on the changes in the condition, individual differences, but the maximum amount should not exceed 9 grams.

3. If the patient feels unwell after taking the medicine, the medicine should be stopped immediately for observation.

4. Long-term use of calamus and its preparations should be under the guidance of a physician, to ensure that the medication is safe and effective.