(B) In exercising the authority to administer prescription medications pursuant to nursing delegation, a medication aide may administer prescription medications in any of the following categories:

1. (1) Oral medications;
2. (2) Topical medications;
3. (3) Medications administered as drops to the eye, ear, or nose;
4. (4) Rectal and vaginal medications;
5. (5) Medications prescribed with a designation authorizing or requiring administration on an as-needed basis, but only if a nursing assessment of the patient is completed before the medication is administered.

(C) A medication aide shall not administer prescription medications in either of the following categories:

1. (1) Medications containing a schedule II controlled substance, as defined in section 3719.01 of the Revised Code;
2. (2) Medications requiring dosage calculations.

(D) A medication aide shall not administer prescription medications by any of the following methods:

1. (1) Injection;
2. (2) Intravenous therapy procedures;
3. (3) Splitting pills for purposes of changing the dose being given.