what does od stand for in medical terms
Some of the common latin prescription abbreviations include: 1  ac (ante cibum) means before meals. 2  bid (bis in die) means twice a day. 3  gt (gutta) means drop. 4  hs (hora somni) means at bedtime.  od (oculus dexter) means right 1  eye. os (oculus sinister) means left 2  eye. po (per os) means by mouth.  pc (post cibum) means after meals.