If a drug/medicine needed by a local government entity is not included in the PNDF, how will they procure the “needed” drug?

Drugs not listed in the PNDF Volume I, needs a written request for exemption for procurement with corresponding justification addressed to the Head of the National Center for Pharmaceutical Access and Management (NCPAM) who may approve or disapprove the request.  (Refer to EO 49 “Directing the Mandatory Use of the Philippine National Drug Formulary (PNDF) Volume I as the basis for Procurement of Drugs Products by the Government” and Administrative Order 163 s. 2002 “Implementing Guidelines and Procedures in the Procurement and Requisition of Drugs and Medicines by the Department of Health pursuant to Executive Order No. 49 dated January 21, 1993.