What are the side effects of Roxithromycin?
Roxithromycin is a macrolide antibiotic commonly available in tablet, capsule, and granule formulations. Its adverse effects include gastrointestinal discomfort, oral odor, rash, abnormal liver function, and arrhythmia. Detailed explanations are as follows:

1. Gastrointestinal Discomfort
Roxithromycin may irritate the gastrointestinal mucosa, affect normal gastrointestinal motility and secretion of digestive juices, and potentially alter the balance of normal intestinal flora, leading to digestive dysfunction.
2. Oral Odor
DOwing to the drug's metabolism in the body, certain metabolites may be excreted through saliva. These substances may have a special odor, resulting in an unusual taste in the mouth, such as bitterness or a metallic taste.
3. Rash
Some patients may be allergic to roxithromycin. The immune system may recognize the drug as a foreign antigen, triggering an immune response. Antibodies are produced to bind with the antigen, activating inflammatory cells and releasing inflammatory mediators, leading to allergic skin symptoms. Reddish maculopapular rashes may appear on the skin, often accompanied by itching, commonly affecting the trunk and limbs.
4. Abnormal Liver Function
Roxithromycin is primarily metabolized in the liver and may cause some damage to hepatocytes, affecting normal liver function. The drug may interfere with the metabolic processes of liver cells, leading to elevated liver function indicators such as transaminases.
5. Arrhythmia
Roxithromycin may affect the electrophysiological activity of the heart, interfering with ion channels in myocardial cells, causing abnormal depolarization and repolarization processes in myocardial cells, thereby triggering arrhythmias, such as tachycardia, bradycardia, or irregular heartbeat, which may be accompanied by symptoms such as palpitations, chest tightness, and dizziness.
Patients are advised to fully understand the potential side effects and precautions before use and to use the medication appropriately under the guidance of a physician. If any concerns or discomfort arise, timely medical attention and consultation with a healthcare professional are recommended.