Side effects of pain-relieving injections

Generally, analgesic injections are used for pain relief and can be administered via intramuscular or intravenous injection. They are commonly used to alleviate symptoms of pain. Side effects of analgesic injections include allergic reactions, gastrointestinal reactions, neurological symptoms, liver and kidney function impairment, drug tolerance, and addiction. A detailed explanation is as follows:

1. Allergic reactions: A small number of patients may be allergic to certain components of analgesic injections, causing allergic symptoms such as rash, fever, and difficulty breathing. If an allergic reaction occurs, the analgesic injection should be discontinued immediately, and medical assistance should be sought.

2. Gastrointestinal reactions: Analgesic injections may irritate the gastrointestinal tract, causing symptoms such as nausea, vomiting, stomach pain, bloating, and indigestion. Long-term or excessive use of analgesic injections may also increase the risk of gastric ulcers, peptic ulcers, and gastrointestinal perforation.

3. Neurological symptoms: Analgesic injections may affect the central nervous system, causing symptoms such as dizziness, headache, drowsiness, tinnitus, insomnia, and mental excitement. Severe cases may even result in dangerous conditions such as respiratory depression.

4. Liver and kidney function impairment: Analgesic injections are usually metabolized and excreted through the liver and kidneys. Long-term or excessive use may increase the burden on the liver and kidneys, potentially leading to abnormal indicators such as elevated transaminase levels, increased creatinine, and elevated blood urea nitrogen, which may impair liver and kidney function.

5. Drug tolerance and addiction: Prolonged use of analgesic injections may lead to drug tolerance, requiring increased dosages to achieve the same pain-relieving effect. Additionally, analgesic injections can be addictive, and long-term or excessive use may lead to physical dependence on the medication.

To reduce the side effects of analgesic injections, patients should strictly follow medical instructions when using the medication, avoiding self-adjustment of dosages or frequent use. During the use of analgesic injections, patients should also monitor their own reactions closely and discontinue the medication immediately if adverse effects occur, seeking medical attention as needed.