Oregon Revised Statutes Education and Culture § 339.870

(1) A school administrator, teacher or other school employee designated by the school administrator is not liable in a criminal action or for civil damages as a result of the administration of nonprescription medication, if the school administrator, teacher or other school employee in good faith administers nonprescription medication to a pupil pursuant to written permission and instructions of the pupil's parents or guardian.

(2) A school administrator, teacher or other school employee designated by the school administrator is not liable in a criminal action or for civil damages as a result of the administration of prescription medication, if the school administrator, teacher or other school employee in compliance with the instructions of a physician, physician assistant, nurse practitioner or clinical nurse specialist, in good faith administers prescription medication to a pupil pursuant to written permission and instructions of the pupil's parents or guardian.

(3) The civil and criminal immunities imposed by subsections (1) and (2) of this section do not apply to an act or omission amounting to gross negligence or willful and wanton misconduct.