https://ru.doktika.com/guaifenesin_and_dextromethorphan_extended_release_tablets-zyrtec_cetirizine_orally_disintegrating_tablets
Guaifenesin and Dextromethorphan Extended-Release Tablets и Zyrtec (Cetirizine Orally Disintegrating Tablets) - взаимодействие лекарств