You have three days of insulin left

Do not ration insulin. Taking less than prescribed can cause severe hyperglycemia and diabetic ketoacidosis, especially in type 1 diabetes. Start now, not on the final dose.

First hour

Count the insulin you have by type and estimate when each will run out. Check for unopened backup insulin and verify storage and expiration. Call the prescriber's urgent line and say:

> I have type 1 diabetes and approximately three days of [insulin name and strength] left. I need an urgent prescription and a safe bridge plan today. My pharmacy is [name and number], and my insurance status is [status].

If you use a pump, report how many infusion sets or pods remain and whether you have backup long-acting insulin. Don't guess at a backup dose.

Hours 1–3

Ask the pharmacy to run the prescription and read you the exact rejection. Common fixes include a renewed prescription, corrected quantity or days' supply, override after a dose change, prior authorization, vacation override, or a different in-network pharmacy.

Call the insurer while the prescriber works. Ask for a transition fill, emergency override, expedited prior authorization, or formulary exception. Record reference numbers.

Hours 3–6

Call the manufacturer's urgent-access line for the exact insulin. Ask about an immediate supply, cash card, or emergency voucher and what the pharmacist needs to enter. Lilly, Novo Nordisk, and Sanofi all maintain affordability support, but products, quantities, and eligibility differ.

Use the Glucopath matcher to identify a longer-term PAP or coverage route at the same time.

Same day

Use HRSA's Find a Health Center tool and call nearby FQHCs or free clinics. Ask for a same-day diabetes visit, sliding fees, 340B or contract-pharmacy access, donated insulin, and a medication-assistance coordinator.

Ask the pharmacist whether your state authorizes an emergency refill or insulin-specific emergency supply. State laws differ in duration, frequency, documentation, and price, and they change, so verify with the pharmacy or state board rather than relying on a static list.

If the bridge is a different insulin

Human regular or NPH insulin may be cheaper, but their timing and peaks differ from rapid-acting and long-acting analogs. Use them only with a clinician-approved conversion, meal, monitoring, and hypoglycemia plan.

When this becomes an emergency

Check glucose and ketones according to your sick-day plan. Seek urgent medical care for vomiting, abdominal pain, deep or rapid breathing, confusion, inability to keep fluids down, or moderate to high ketones. If no safe insulin supply can be obtained and doses will be missed, the emergency department is the last-resort safety net. Bring your insulin list and ask for both immediate stabilization and a discharge supply that safely bridges to follow-up.

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