TOPCARE MUCUS ER (GUAIFENESIN) TABLET, EXTENDED RELEASE [TOPCO ASSOCIATES LLC] Home TOPCARE MUCUS ER (GUAIFENESIN) TABLET, EXTENDED RELEASE [TOPCO ASSOCIATES LLC] TOPCARE MUCUS ER (GUAIFENESIN) TABLET, EXTENDED RELEASE [TOPCO ASSOCIATES LLC] PDF | XML NDC 36800-325-66 Set ID 67680619-0dd0-4d29-a103-b9134f0f21ca Generic Name Product Class Product Number Application Number ANDA091009 Related Drugs Search DailyMed Drugs