Erythromycin, while helpful for gastroparesis, carries potential side effects. These vary in severity and frequency.
- Gastrointestinal Issues: Nausea, vomiting, diarrhea, and abdominal cramps are common. These usually subside with continued use but may require dose adjustment or alternative medication. Liver Problems: Rarely, erythromycin can cause liver inflammation (hepatitis). Monitor for jaundice (yellowing of skin or eyes), dark urine, or unusual fatigue. Seek immediate medical attention if these symptoms arise. Allergic Reactions: Skin rashes, itching, hives, and swelling are possible. Severe allergic reactions (anaphylaxis) are uncommon but require emergency treatment. Stop taking erythromycin and seek immediate medical help if you experience a severe allergic reaction. Cardiac Effects: Erythromycin can prolong the QT interval in the heart, increasing the risk of irregular heartbeats (arrhythmias). This is more likely in patients with pre-existing heart conditions or those taking certain medications. Your doctor should carefully assess your cardiac health before prescribing erythromycin. Hearing Problems: In rare cases, hearing loss or tinnitus (ringing in the ears) can occur. Contact your physician immediately if you experience such symptoms.
Erythromycin interacts with several medications. This interaction can either reduce the effectiveness of other drugs or increase the risk of side effects. Always inform your doctor of all medications, including over-the-counter drugs, herbal supplements, and vitamins, you are taking.
Statins: Concurrent use with statins (cholesterol-lowering drugs) can increase the risk of muscle damage (myopathy). Theophylline: Erythromycin can increase the levels of theophylline (used for breathing problems), leading to adverse effects. Warfarin: This interaction may increase the risk of bleeding. Close monitoring of blood clotting is necessary. Digoxin: Erythromycin can increase digoxin (heart medication) levels, potentially causing toxicity. Pimozide and other QT-prolonging drugs: Combining these with erythromycin substantially increases the risk of serious heart rhythm problems.
This information is not exhaustive. Consult your doctor or pharmacist for comprehensive information on erythromycin’s potential side effects and drug interactions specific to your health condition and medication profile.


