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Storing, Handling, and Disposing of Your Medication

WRITTEN BY:
Kristin Baier, MD
Medically reviewed by:
Becky Hamner, APN
And
Kristin Baier, MD
Article
/
June 12, 2026
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GLP-1 medicines can stop working if they are not stored the right way. Too much heat, cold, or light can damage them. A pen or pill can look fine on the outside, but already be ruined on the inside. This guide explains how to store, use, and throw away your medicine the safe way.

Weekly Shots — Keep in Refrigerator

Keep all GLP-1 injectable medications in their box, in the refrigerator before first use. These medications are sensitive to light which is why it’s recommended to keep them in the manufacturer packaging.

Medication Refrigerator Storage (Unopened) Temperature
Ozempic (semaglutide)
Until expiration date on the label
36°F–46°F (2°C–8°C)
Wegovy (semaglutide)
Until expiration date on the label
36°F–46°F (2°C–8°C)
Zepbound (tirzepatide)
Until expiration date on the label
36°F–46°F (2°C–8°C)
Mounjaro (tirzepatide)
Until expiration date on label
36°F–46°F (2°C–8°C)

Refrigerator tips:

  • Keep medicine in the middle of the refrigerator. Do not keep them in the door, which gets warm each time you open it. 
  • Keep medicine away from the back wall of the refrigerator. That area can freeze your medicine.
  • Leave the medicine in the box until it is used. 

Weekly Shots — Out of the Refrigerator

Once the medicine is out of the refrigerator, it is only good for a set number of days. After that, throw it away, even if there is still medicine left. 

Medication Room Temperature Window (In Use) Max Temp
Ozempic (semaglutide)
56 days
86°F / 30°C
Wegovy (semaglutide)
28 days
77°F / 25°C
Zepbound (tirzepatide)
21 days
86°F / 30°C
Mounjaro (tirzepatide)
21 days
86°F / 30°C
💡Write the date you opened your pen on the label or packaging so you know when to stop using it.

Daily Pills — How to Store 

The daily pills do not go in the refrigerator. 

Wegovy pill (semaglutide) 

How to store it:

  • Keep it at room temperature, 68–77°F (20–25°C).
  • Keep it in a dry place. Do not keep it in the bathroom, which can get hot and damp from the shower.
  • Keep the pills in their own bottle with the cap closed tight. Do not move them to another bottle.

Foundayo (orforglipron)

How to store it:

  • Keep it at room temperature, 68–77°F (20–25°C).
  • Light can harm this pill. Keep it in its own bottle and box, and close the cap each time
  • The bottle has a small drying packet inside. Leave the packet in the bottle.

What  Damages Your Medication

Hazard What Happens Prevention
Freezing
The cold ruins the medicine for good. A pen that froze and then thawed may look fine but will not be effective.
Never put your medicine in the freezer. Keep away from the back wall of the refrigerator. Never place directly on ice packs.
Too much heat
Heat makes the medicine weaker or less effective
Never leave it in a hot car, in the direct sun, or near a heater. In hot weather, use a cooler bag for your medicine.
Sunlight
Light can break down the medicine
Store in original packaging. Keep it off windowsills and car dashboards.
Getting damp (pills)
Damp air can ruin the pills.
Keep pills in the original bottle in a dry place.
Dropping or shaking
This can break a pen.
Handle pens with care. Look them over before each shot.
Old medicine
Expired medicine may not work.
Check the expiration date before every dose.

Check your Shot Before You Use It

Take 10 seconds to check your pen before each shot:

  • Look at the liquid. It should be clear and colorless or very slightly yellow for tirzepatide (Zepbound/Mounjaro)). Do not use it if it looks cloudy, discolored, or has particles floating in it.
  • Look for ice. If you see any ice, throw the pen away. Check the expiration date on the label. Don’t use it if the medicine has expired.
  • Check how long the pen has been out of the refrigerator. Don’t use it if it has been outside the refrigerator for the maximum amount of days noted above. 
  • If the pen does not work right, contact your care team. 
💡If anything looks or feels wrong do not use it and contact your care team. 

How to Give Your Shot — Quick Reference

Good technique helps your shot work better and feel better

  • Use a different place to inject each week. You can use your stomach (keep away from belly button), outside of your thigh, or the back of your upper arm. Let the pen sit at room temperature for 15–30 minutes to warm up before your shot. 
  • Put the shot into the soft fat just under your skin, not into muscle. Do not rub the spot after your shot. This may prevent the medicine from working the right way.
  • Do not store needles attached to your pen. Always follow the “Instructions for Use” that came with your medicine. 

Throwing Away Used Needles (Sharps) 

Used pen needles are called sharps. Throwing them away the wrong way is not safe, and it is against the law in most places. The Right Way to Dispose of Used Needles

  • Put used needles in a sharps container. Never put loose needles in the trash or the recycling bin.
  • Never put the cap back on a used needle with your hands. For pens where you take the needle off, put the used needle in the sharps container. The empty pen with no needle can go in the regular trash. 
  • For pens where the needle stays inside, put the whole used pen in the sharps container. 

Sharps Container Options

Option Notes
FDA-cleared sharps container
Sold at pharmacies or purchased online. This is the best choice for home use.
Mail-back programs
Some sharps containers come with a prepaid label so you can mail them back.
Drop-off site
Many pharmacies, hospitals, and health departments take full sharps containers. Check safeneedledisposal.org.
Home container (temporary)
You can use a strong plastic bottle with a screw-on lid, like a laundry soap bottle. Write "sharps — do not recycle" on it.

When Your Sharps Container Is Full

  • Close it tight. Do not overfill.
  • Never push needles down to make more room. 

Take it to a drop-off site, mail it back, or follow your local rules. 

Discarding Pills You No Longer Need

  • Take old pills to a pharmacy take-back program or a drug drop-off box.
  • Do not flush pills down the toilet unless the label tells you to.
  • Ask your Onsera care team if you are not sure what to do.

This handout is for educational purposes only and does not replace personalized medical advice from your healthcare provider. Always consult your Onsera care team before making changes to your medications or treatment plan.

For participants only. This resource and welcome guide are intended solely for program participants and should not be shared, copied, or distributed externally.
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