Doxophylline causes shivering, in which case the medication should be suspended and can be continued after the symptoms have completely disappeared. Dosophylline is a bronchodilator drug, which can act directly on the bronchial tubes and relax the bronchial smooth muscle, so as to achieve the effect of inhibiting asthma. It is mainly used for bronchial asthma, chronic wheezing bronchitis and other bronchospasm-induced dyspnea. It is contraindicated for those who are allergic to doxophylline or xanthine derivatives. This product is contraindicated in patients with acute myocardial infarction. If shivering occurs during use, this is an initial sign of toxicity, in which case the drug should be suspended, a doctor’s diagnosis should be sought and blood levels should be monitored. However, the drug may be continued after the signs and symptoms of poisoning have completely disappeared. Adverse reactions such as nausea, vomiting, headache, insomnia, tachycardia, etc. may also occur during use. If you need to use Doxophylline, it is recommended that you use it under the supervision of a doctor to avoid delays or adverse reactions.