• Items that are no longer or never were commercially available. 

• New forms of a medication. For example, providing a liquid for a patient with difficulty swallowing pills.

• Ophthalmics, especially preservative free medicine and high strength antibiotics.

• Dosages, smaller or larger doses as needed for people that metabolize medicines at different rates.

• Combinations of two or more drugs compounded into a single capsule (which reduces the number of pills taken on a daily basis and may reduce drug costs.)

• Intravenous injections or infusions that need preparation in a sterile environment.