m.d.u. means more dicto utendus - to be used as directed in Prescription
Similar to m.d.u.
nebul - nebula - a spray noct. - nocte - at night non rep. - non repetatur - no repeats NS - normal saline 0.9% o.p.d. - once per day o.s. - oculus sinister - left eye o.u. - oculus uterque - both eyes