What do you mean by injection and oral administration?

Injection and oral administration are two common ways of administration. Injection is the injection of drugs into the human body through a syringe, which directly enters the blood circulation system and takes effect quickly. For oral administration, drugs are put into the oral cavity in the form of capsules, tablets, powders, etc. , and with saliva into the gastrointestinal tract, absorbed by the intestinal system and then into the blood circulation system, the effect is slow. The use of drugs needs to be considered comprehensively according to the condition, drug characteristics, individual differences and other factors, and the most suitable way should be selected.

Although the injection takes effect quickly, it needs professional medical staff to operate, which is easy to cause pain, infection, phlebitis and other adverse reactions. The advantages of oral administration are convenience, rapidity, convenient dosage control, portability and no limitation of time and place. However, oral drugs need to go through the metabolic process of the liver, which has low efficacy and is easily affected by food and gastric acid. Therefore, in drug treatment, doctors need to choose the most appropriate administration method according to the specific situation of patients and the characteristics of drugs.

The mode of administration varies from person to person. Generally speaking, it is necessary to comprehensively consider the nature of the drug, the severity of the disease, the physical condition of the patient and other factors to choose the best mode of administration. For some patients with urgent and critical symptoms, such as myocardial infarction and shock, injection is the best choice. For some patients with chronic diseases or patients who need long-term treatment, oral administration is the first choice because it is convenient, safe and economical. In short, doctors need to comprehensively consider which mode of administration to adopt according to the specific condition when taking drugs, so as to improve the treatment effect and reduce adverse reactions.