BROOKLINE - Following the arrest of a15-year-old Brookline High School student on charges of carrying prescription drugs and marijuana, school officials said they are working to address ongoing issues of substance abuse among teenagers, and have several programs in place to educate students. "I don't think it's a big problem in Brookline, but it does happen," student health coordinator Kate Donnelly said. "It does happen on this scale very infrequently." On Jan. 14, a 15-year-old girl was arrested and charged with possession of a class B substance and possession of a class D substance with intent to distribute, after school personnel learned she allegedly was carrying three bags of pot and 33 pills, including the stimulants Adderall and Ritalin and the painkillers Oxycodone and Neurontin. [continues 424 words]