Erythromycin Tablets, USP, 500 mg, 30 tablets per bottle, Rx only, Manufactured by: Zydus Lifesciences Ltd., Ahmedabad, India, Distributed by: Zydus Pharmaceuticals (USA) Inc., Pennington, NJ 08534; (NDC 70710-1048-3).
CGMP Deviations; presence of N-Nitroso-Desmethyl-Erythromycin above the recommended acceptable intake limit
Nationwide within the U.S
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=D-0545-2026