A Putnam Valley man is facing drug charges following a traffic stop in the town. 33-year old Keith Matthews was pulled over on the Taconic State Parkway Tuesday afternoon for speeding. Putnam County Sheriff deputies found Oxycodone pills, Tamazepam pills and Suboxone, all controlled substances for which he did not have a valid prescription. A quantity of marijuana was also found. Matthews was charged for the drug possession and cited for the speeding. He was arraigned and ordered held on bond.