Tizanidine Tablets USP, 4 mg, 1000-Count bottle, Rx Only, Manufactured by Dr. Reddy's Laboratories Limited Srikakulam - 532 409 India. NDC 55111-180-10 Class I - Dangerous Failed dissolution specification: Out of specification results observed in 24-month long term stability testing. Jun 21, 2023 Prescription Drugs Nationwide View Details →