What changes when a medicine is compounded?

What does compounded mean?

To compound a medicine is to make or change it to order. This takes the place of using a finished product from a drug company.

These custom medicines, as of September 26, 2026, lack approval by FDA (the Food and Drug Administration).

Before those medicines are sold, FDA does not check whether they work, are safe, or are made well.

Ask the prescriber to explain the reason for the custom version in terms of your own medical need.

Can a pharmacy just copy an available medicine?

Federal law restricts how often pharmacies can make near-copies of drugs already on the market, as of September 26, 2026.

An exception can apply if the prescriber writes down a change that makes an important medical difference for that particular patient.

For example, someone with a dye allergy may need the medicine made without that dye. Someone unable to swallow tablets may need it in liquid form.

Ask: what change is needed for me, why does it matter, and where have you written that down? A useful answer names the change and your own medical need.

Paying less is not the significant medical difference required by that rule.

Is the old shortage explanation still enough?

As of September 26, 2026, FDA’s records did not list semaglutide injection or tirzepatide as in shortage.

A local out-of-stock message is different from FDA’s national shortage listing.

Ask the prescriber and pharmacy: what rule allows you to make this medicine for me now? Please explain how my prescription meets that rule. An old shortage headline does not answer that question.

Does adding a vitamin change the answer?

FDA says a semaglutide shot with vitamin B12 may still count as a copy, as of September 26, 2026.

Strength means the amount of medicine in a shot. The copy rule can still apply if that amount is the same as, similar to, or easily exchanged for the ready-made product’s amount.

A different label is not the whole explanation. Ask what change matters for your medical need and how the prescriber has recorded it.