As a Pigment : It is used to add whiteness or accentuate the boldness of other colours. It helps tablets stand out for both Medical Professionals and Patients, to differentiate the strengths of the same Medication.
In Coatings : It is an essential component of the Tablet Coating, necessary to preserve the Safety, Efficacy and Quality of the Active Pharmaceutical Ingredient (APIs), and to provide Shelf-Life Stability. It offers protection for Photosensitive Ingredients, which could be damaged by visible light, and also offer protection to the APIs / Ingredients that may be vulnerable to Ultraviolet (UV) light degradation.
In Packaging : It is widely used in protective films for Tablet Strips and Blisters, as well as in external Cartons. This is because of its ability to scatter light and absorb UV rays, means it is routinely incorporated in the packagings of Medicines to maintain Shelf Life and prevent any Premature Degradation from Moisture, Heat or Light.
It is used in almost all Pharmaceutical Formulation because of its following characteristics ;
Examples : Tablets, Capsules, Pharma Pellets, Empty Hard Gelatin Capsule (EHGC), Ointments, Medical Sticky Tapes & Packagings like Strips & Blisters etc.