When a prescription has the sig code "ii gtts os tid", where is the medication intended to be used?

The sig code "ii gtts os tid" indicates that a patient should take two drops (ii gtts) in the left eye (os) three times a day (tid). In the context of ophthalmic prescriptions, 'os' specifically refers to the left eye, which is why this sig code is intended for use in that location.

Understanding sig codes is crucial for accurately interpreting medication instructions. The term "gtts" refers to the drops, which are commonly used in eye solutions, making it clear that the medication is designed for ocular administration rather than for ears or other routes of administration. Therefore, the correct response aligns perfectly with the meaning of the specific sig code used in the prescription, confirming that the medication is intended for the left eye.