What medication is generally used for allergy shots?

Generally, in case of an allergic reaction, injections such as dexamethasone injection, promethazine hydrochloride injection, calcium gluconate injection, deoxyribonucleotide sodium injection, and epinephrine hydrochloride injection might be used. The appropriate medication should be selected according to medical advice.

1. Dexamethasone Injection: This is a glucocorticoid drug with potent anti-inflammatory and anti-allergic effects, capable of rapidly alleviating inflammation and edema caused by allergic reactions.

2. Promethazine Hydrochloride Injection: This belongs to the class of antihistamine drugs and can relieve allergy-induced symptoms such as itching and swelling by blocking histamine receptors.

3. Calcium Gluconate Injection: This is a common calcium preparation. Calcium ions improve the permeability of cell membranes and increase the density of capillaries, thus reducing exudation and relieving allergy symptoms.

4. Deoxyribonucleotide Sodium Injection: This drug acts as an immunomodulator, stabilizing mast cells, blocking IgE function, and reducing the release of active substances from degranulating cells, thereby exerting anti-allergic effects.

5. Epinephrine Hydrochloride Injection: This is a vasopressor agent primarily used in the emergency treatment of anaphylactic shock. It can rapidly alleviate symptoms such as hypotension and tachycardia caused by allergic reactions.

The use of these medications must strictly follow a physician's instructions; self-administration or altering the dosage without guidance is not advised. It is also important to avoid contact with allergens in daily life to prevent allergic reactions.