Stability testing of the combined antiherpetic ointment Actovir <sup>®</sup>
Stability of the antiherpetic combination drug Actovir ®, ointment for topical and local administration, was investigated under the long-term testing conditions. Aluminium tubes for medical ointment with cylindrical membrane-closed neck (type I) were chosen as the primary packaging for the drug according to the results of the investigation. The stability of the physicochemical properties of the ointment Actovir ® was confirmed during the interval equal to the shelf-life (2 years) at the storage temperature not more than 25ºC and in the chosen primary packaging. The values of the quality parameters of the drug included to the pharmacopoeial monograph of the manufacturer of the Republic of Belarus were proved. The in-use stability of the ointment test samples was investigated and the in-use storage conditions and the in-use shelf-life of the drug were determined.