When the power goes out, the fridge stops. Insulin, biologics, GLP-1s, and eye drops do not have many hours before they have to be discarded — and replacing a single vial of certain biologics can cost more than a generator. This is how to keep your medication safe, how to know whether it stayed in range, and the pharmacy moves to make before the storm.
The power has been out for half a day. The fridge feels a little cool, the freezer is starting to drip — and somewhere on that middle shelf, a $1,400 box of Ozempic and a month's worth of insulin are slowly going from "fine" to "discard." Replacing them out of pocket in a post-hurricane week is a real financial event, and that is the optimistic version.
Refrigerated medications are the quietest casualty of a hurricane. Insulin spoils, biologics degrade, eye drops grow bacteria, and the patient does not find out until they take a dose that does not work. Many of these drugs cost hundreds or thousands of dollars per vial, and emergency replacement during a storm week is hard — pharmacies are slammed, mail-order is delayed, and your prescriber may be unreachable.
The fix is unglamorous and works every time: keep meds cold with a real cooler instead of the dying fridge, know with a temperature logger whether they actually stayed in range, and get an early refill before the storm so you have margin if anything goes wrong.
Freezing destroys insulin, most biologics, and many other refrigerated medications — the vial has to be discarded. Use refrigerator-temperature gel packs (cold, not rock-solid frozen), and keep them separated from the medication by a cloth so the meds never touch ice directly.
Not everything in the medicine fridge is equally fragile. Knowing what you have changes your plan.
Insulin (the most common). Most in-use pens and vials — Lantus, Levemir, NovoLog, Humalog, Tresiba and similar — are labeled stable at room temperature for around 28 days after first use, but check your specific label since stability varies. Unopened insulin is more sensitive and should stay refrigerated whenever possible. After any warm exposure, ask your pharmacist before using it.
GLP-1 medications (Ozempic, Wegovy, Mounjaro, Zepbound). Generally refrigerated; in-use pens often have a room-temperature window (commonly around 56 days for Ozempic, but verify on your label). Expensive enough that protection pays for itself in a single hurricane.
Biologics (Humira, Enbrel, Cosentyx, similar injectables). Refrigerate. Many have a limited room-temperature window labeled by the manufacturer — often 14 to 30 days — single-use. Discard if exposed to heat beyond that.
Eye drops, some antibiotics, EpiPens. Many eye drops degrade and grow bacteria once warm. Liquid antibiotics like reconstituted amoxicillin must stay refrigerated. EpiPens are stored at room temperature and tolerate brief excursions but do not like extremes — they belong in the cooler too if the house is hot.
Build a list now — what you have, what its room-temperature window is, what the replacement cost would be. That is your priority order when space in the cooler is limited.
A regular soft cooler with bagged ice will keep meds cold for a few hours and then over-cool them, risk wetting the vials, and stop working entirely after a day. The purpose-built options are dramatically better:
Evaporative wallets (Frio and similar). Activate in cold water, then keep insulin pens at safe temperature for around 45 hours without any electricity or ice. Excellent for evacuating with a small supply.
Medical-grade insulated cases with gel packs (4AllFamily, MedAngel, vaccine carriers). Designed to hold refrigerator temperature for one to three days with frozen gel packs inside an insulated wall — far longer than a generic cooler. Rotate fresh packs from a friend's freezer or a generator-powered freezer to extend indefinitely.
Thermoelectric / Peltier coolers. Plug into a 12V outlet or a portable power station and actively cool. Slower than a fridge but maintain a steady refrigerator temperature without ice, as long as you have power for them. Pairs perfectly with the same power station that runs the CPAP.
Whatever you use, do not stuff it full — air circulation matters for even cooling, and you want room for a temperature logger.
For longer outages, or households with a lot of refrigerated meds, a small 12V compressor fridge is the gold standard. These are the same units sold for camping and overlanding — they sip about 30 to 50 watts when running, cycle on and off, and pair perfectly with a portable power station. A 500Wh station runs a small fridge for roughly a day; a 1000Wh station for two.
Compressor fridges hold true refrigerator temperatures (and many can freeze), unlike thermoelectric coolers that only cool to about 40°F below ambient — fine in a cool kitchen, struggling in a hot one. For Florida heat with the AC out, compressor is the right choice.
Whatever you choose, plug it in before the storm and let it pre-chill cold — a warm fridge takes hours to come down to safe temperature on battery power.
A meaningful share of the medication people throw away after a storm was probably fine — and a meaningful share of what they keep was already ruined. The only way to know is a continuous temperature record.
A Bluetooth temperature logger ($15–40) sits in the cooler or fridge and records temperature continuously. It pairs with your phone and shows the highest and lowest temperature reached, with a history graph. After the outage you can see exactly whether your insulin stayed in range — and your pharmacist can give a real answer instead of "throw it out to be safe."
For the price of one insulin pen this saves you the contents of an entire fridge. Buy one per cooler and one for the main refrigerator.
The work that actually keeps you supplied through a storm is paperwork done several days before, not a frantic pharmacy run the morning of:
1. Call for an emergency early refill. Most states require insurers to allow early refills during a declared emergency. Call your pharmacy several days before the storm, not the day before — they are slammed and may be evacuating staff themselves.
2. Switch mail-order to local for one cycle. Mail and freight stop after a major hurricane, often for a week or more. If you normally receive insulin or biologics by mail, ask your prescriber to send a one-month local prescription that you can pick up nearby.
3. Get a paper copy of your prescription list. Drug name, dose, prescriber, and pharmacy. If you evacuate to another county or state, this paper lets any pharmacist help you. Keep one with the medication cooler, one in your go-bag, and one in the car.
Buy this before the season. The whole kit comes in well under the cost of replacing a single vial of the medications you are protecting.