[over.dose] n (1700) 1: too great a dose (as of a therapeutic agent); also: a lethal or toxic amount (as of a drug)
2: an excessive quantity or amount "an ~ of sports" -- over.dos.age n
[2]over.dose vt (1727): to give an overdose or too many doses to ~ vi: to take or experience an overdose--usu. used with on