What to Do When Your Prescription Is on Backorder: A Step-by-Step Playbook

Pharmacist-recommended steps · updated October 2026 · 6 min read

There is a special kind of dread in hearing "we're out of stock and we don't know when it's coming in" about a medication you take every day. I watched a family member go through this with a blood pressure drug last year. What I learned: a backorder is a logistics problem with a playbook, not a dead end. Here is the playbook, in the order that works.

Step 1: Call the pharmacy before you go

This sounds obvious, and almost nobody does it. Call ahead and ask whether your medication is in stock and when the next shipment is expected. Many pharmacies can order an out-of-stock drug and have it ready the following business day. One phone call can save you a wasted trip and, more importantly, tells you immediately whether you are dealing with a one-day delay or a real shortage.

Step 2: Ask for a partial fill

If the full prescription cannot be filled, your pharmacist may be able to dispense a partial supply, a few days' worth, to tide you over until the order arrives. This is one of the most useful and least-known options. It buys your prescriber and pharmacist time to find a longer-term solution without you missing doses.

Step 3: Check other pharmacies

Shortages are distributed unevenly. Your chain's warehouse may be empty while the independent pharmacy across town has a full shelf, because different pharmacies use different suppliers. Ask your pharmacist whether another store in the chain has it, call around yourself, or ask your doctor to send the prescription to a pharmacy where stock is confirmed. Harvard Health pharmacists specifically recommend trying a small independent pharmacy, which sometimes has more flexibility in sourcing than the big chains.

If you consider an online pharmacy, verify it first. The National Association of Boards of Pharmacy offers a free Buy Safely tool where you type in the website address to check legitimacy. Most online pharmacies are rogue operations selling unapproved products, so do not skip this check.

Step 4: Ask about a different strength or form

Sometimes the shortage is not the drug itself but a specific tablet strength or package. The same medication may be available in a different strength, a capsule instead of a tablet, or a liquid form. Your pharmacist can spot these options; your prescriber may need to write a new prescription for the available version.

Step 5: Contact your prescriber for an alternative

If the drug itself is unavailable, tell your doctor immediately. They can review your history and prescribe a therapeutic alternative. For chronic conditions like high blood pressure, cholesterol, or depression, there is usually more than one workable option, though switching is not trivial and should be a clinical decision, not a pharmacy-counter improvisation.

Step 6: Ask your insurer to cover the brand name

When the generic is in shortage, the brand-name version may still be available but priced far above your copay. Ask your prescriber to advocate for you with the insurer. Insurers can authorize brand coverage during a documented shortage, but they rarely volunteer it. Someone has to make the case, and your prescriber's office knows how.

Prevent the next scramble

Once you are through the crisis, build a buffer:

Refill early. When you are down to a week's supply of a maintenance drug, reorder. Do not wait until the bottle is empty.
Use auto-refill, but verify. Auto-refill gets the prescription ready a week or two before it is due, but call the pharmacy a week ahead anyway to confirm it will actually be available.
Keep the relationship. A pharmacist who knows you as a regular is more likely to hustle to find a supplier with your medication. This is human nature and it works.
Track shortages yourself. The FDA and the American Society of Health-System Pharmacists both publish shortage lists. Knowing a shortage is national, rather than just your pharmacy, changes your strategy from "wait a day" to "call the prescriber now."

Is your drug on the national shortage list?
Search the tracker before you call. It compiles public FDA shortage data with status filters.
Search the drug shortage list

FAQs

What does it mean when a prescription is on backorder?

It means the manufacturer cannot currently supply the medication to the pharmacy. This differs from a simple out-of-stock, where the pharmacy can reorder and have it the next business day. A backorder signals a supply-chain disruption that may last weeks.

Can my pharmacist give me a different drug without my doctor?

Your pharmacist can often substitute an equivalent generic or a different strength of the same drug, and may dispense a partial fill. Switching to a different medication requires a new prescription from your prescriber. Your pharmacist can contact the prescriber on your behalf to request one.

Should I ration my pills to make them last?

Do not change your dose or skip doses without medical guidance. Rationing can be dangerous depending on the drug. Use the steps above: partial fills, other pharmacies, and prescriber alternatives, to bridge the gap safely.