Who should not use Amoxicillin

Mar 03, 2025 Source: Cainiu Health
Dr. Bai Hongmei
Introduction
Under normal circumstances, amoxicillin is available in common dosage forms such as tablets, capsules, and injections. Patients who are allergic to penicillin or cephalosporins, those with specific medical conditions, individuals with severe liver or kidney insufficiency, pregnant women, and nursing mothers should not use amoxicillin. These populations should exercise special caution when using amoxicillin and must make medication decisions under the guidance of a physician.

Under normal circumstances, amoxicillin is commonly available in various dosage forms such as tablets, capsules, and injectable formulations. Individuals who are allergic to penicillin or cephalosporins, patients with certain specific diseases, those with severe hepatic or renal insufficiency, and pregnant or lactating women should not use amoxicillin. Details are as follows:

1. Patients allergic to penicillin: Amoxicillin belongs to the penicillin class of antibiotics. Patients allergic to penicillin may experience severe allergic reactions after taking it, such as rash, urticaria, difficulty breathing, and decreased blood pressure. In severe cases, it may even lead to anaphylactic shock.

2. Patients allergic to cephalosporins: Due to the possibility of cross-allergy between amoxicillin and cephalosporin drugs, patients allergic to cephalosporins should also avoid using amoxicillin.

3. Patients with certain specific diseases: Patients with lymphocytic leukemia, lymphoma, or infectious mononucleosis should not take amoxicillin. These patients may have an increased risk of adverse reactions when using amoxicillin, such as rash and abnormal liver function.

4. Patients with severe hepatic or renal insufficiency: Amoxicillin is primarily metabolized and excreted through the liver and kidneys. Patients with impaired liver or kidney function may experience an increased burden on these organs when using amoxicillin, potentially leading to further deterioration of liver or kidney function.

5. Pregnant and lactating women: Although amoxicillin is considered relatively safe for use in pregnant and lactating women, caution is still advised. The drug may transfer to the fetus or infant through the placenta or breast milk, potentially causing adverse effects.

These populations should exercise particular caution when using amoxicillin and should make medication decisions under the guidance of a physician.