Clarifies issues relative to the Value-Added Tax (VAT) Exemption of certain medicines and other medicinal devices for COVID-19 under Sections 109(1)(AA) and 109(1)(BB)(ii) of the National Internal Revenue Code of 1997 (Tax Code), as amended by Republic Act (RA) Nos. 10963 (TRAIN Law), 11467 and 11534 (CREATE Act)