What are the side effects of oxytetracycline?
Sep 18, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In general, oxytetracycline, as a tetracycline-class antibiotic, may cause various side effects during use, mainly including gastrointestinal discomfort, skin and mucous membrane reactions, effects on teeth and bones, liver damage, and neurological symptoms. It is recommended to strictly follow medical instructions when taking this medication; do not adjust the dosage or prolong the treatment duration on your own.
Under normal circumstances, oxytetracycline, as a tetracycline-class antibiotic, may cause various side effects during use, mainly including gastrointestinal discomfort, skin and mucous membrane reactions, effects on teeth and bones, liver damage, and neurological symptoms. A detailed analysis is as follows:
1. Gastrointestinal discomfort: Gastrointestinal reactions are relatively common after using oxytetracycline, mostly manifesting as nausea, vomiting, and diarrhea. Some individuals may experience loss of appetite or abdominal bloating and pain. These symptoms usually appear early in treatment and vary in severity depending on individual differences.
2. Skin and mucous membrane reactions: A minority of people may develop allergic reactions such as skin itching and rashes after taking the medication. The rash is typically characterized by red maculopapular eruptions, commonly appearing on the trunk and limbs. In rare cases, inflammation of the oral mucosa may occur, presenting as redness, swelling, and pain in the oral mucosa.
3. Effects on teeth and bones: Oxytetracycline may adversely affect the development of teeth and bones, especially in children and adolescents, potentially leading to tooth discoloration (yellowing), enamel hypoplasia, reduced resistance to tooth decay, and increased risk of dental caries.
4. Liver damage: Long-term or high-dose use of oxytetracycline may increase the burden on the liver and lead to liver injury, manifested as fatigue, jaundice, and darkened urine. Individuals with pre-existing liver dysfunction are at higher risk of liver damage.
5. Neurological symptoms: Some individuals may experience dizziness, headache, or drowsiness after taking the drug. In rare cases, symptoms such as irritability and difficulty concentrating may occur. These symptoms are generally mild and tend to gradually resolve after discontinuation of the medication.
It is recommended to strictly follow medical instructions when taking this medication and not to adjust the dosage or extend the duration of use without authorization. During treatment, closely monitor your physical condition. If any abnormal reactions occur, promptly consult your doctor to adjust the treatment plan. Additionally, maintain a light diet to support bodily stability.
