Epinephrine is generically known as Epinephrine Hydrochloride Injection, and the use of Epinephrine Hydrochloride Injection may cause side effects such as increased blood pressure, pallor, dizziness, vomiting, and coldness in the extremities. Epinephrine Hydrochloride Injection, a medication used for first aid, is commonly used in the treatment of respiratory distress due to bronchospasm and anaphylaxis. Improper clinical use of Epinephrine Hydrochloride Injection may result in systemic reactions, such as elevated blood pressure, pallor, dizziness, vomiting, cold extremities and other side effects. Symptoms such as hyperglycemia may also occur, and epinephrine hydrochloride injection, if overdosed, can lead to side effects such as abnormal agitation and irritability with central excitation. Because epinephrine hydrochloride injection has the effect of reducing glucose uptake by peripheral tissues, it is prohibited for use in diabetic patients. When patients use Epinephrine Hydrochloride Injection, they should pay attention to observe the changes, and if the symptoms mentioned above occur, targeted treatment should be given by specialized doctors.