How to Store Testosterone: Temperature, Shelf Life & Crystals
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How to store testosterone: follow the temperature on your exact product's label, usually 68–77°F (20–25°C), and keep it in its original box. Don't use the fridge or freezer unless your product's instructions require it. Use the earliest applicable expiration, pharmacy beyond-use, or opened-vial discard date; the container type changes the rules.
This guide is about storing testosterone you've already been prescribed. It doesn't cover dosing or how to inject. It can't check the condition of your vial, pump, or package. Your dispensing pharmacist can.
That covers most people. But two things trip up a lot of readers. First, the date that matters most on an opened vial often isn't the one printed on it. Second, the "28-day rule" you've probably heard is real, but it comes from somewhere most websites never explain. We checked the labels and the rules behind them. Here's what we found.
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How to store testosterone at home: the 5 rules
Store testosterone within the temperature range on your exact label, usually 68–77°F (20–25°C), in its original box, out of direct light, and away from moisture. Keep it locked up or out of reach, because testosterone is a Schedule III controlled substance. A bedroom drawer or closet shelf works for most homes if it stays within that range.
Here's the short version. Five rules. That's it.
- Keep it at room temperature. Most U.S. testosterone labels say 68–77°F (20–25°C). One product, AZMIRO, says 59–77°F. Check yours.
- Keep it in the box. Several injectable labels say "protect from light." The carton is the easiest way to do that.
- Keep it dry. Bathrooms get steamy. Oral capsule labels specifically say to avoid moisture.
- Keep it out of the cold unless your pharmacy label says otherwise. No fridge or freezer for the products in the table. No winter mailbox. Cold can cause crystals in oil-based vials.
- Keep it secure. Testosterone is a Schedule III controlled substance, which means federal law limits who can have it and requires a prescription. The Xyosted Medication Guide says to keep it in a safe place and never give it to anyone else, because selling or giving it away is against the law.
Good spots vs. bad spots
Sources: MedlinePlus, storing medicines · DEA, drug scheduling · Xyosted Medication Guide
One honest note: a "good room" isn't proof of temperature. If your place runs hot in summer or cold in winter, a cheap indoor thermometer in that drawer will tell you more than a guess.
What "controlled room temperature" means
You'll see "store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]" on many labels. That's the target. Some labels also list a wider range you're allowed to drift into briefly. These are called excursions: short trips outside the normal range. For example, the AndroGel 1.62% and Xyosted labels allow excursions to 59–86°F (15–30°C).
An excursion range isn't permission to store it there. It also doesn't say how long a trip outside the normal range can last. A warm afternoon at home is one thing. A hot car is another. More on that below.
Testosterone storage by product: what each label says
Testosterone storage rules are similar across products: room temperature, dry, and away from kids. But the details differ. Some vials have light and crystal instructions, Xyosted has a "do not refrigerate" rule, alcohol-based skin gels are flammable, and some vials are single-dose only.
Find your exact product and manufacturer below.
We read 12 official U.S. testosterone label records on October 29, 2026. Then we put the storage rules side by side, in the same columns, so you don't have to open a dozen tabs. Match the product name and listed company on your box to a row. A similar name from a different maker isn't close enough. Labels differ.
The Testosterone Storage Label Check (U.S. labels, checked October 2026)
Sources: Pfizer Depo-Testosterone · Cipla cypionate · Wilshire/Bryant Ranch cypionate · Hikma enanthate · AZMIRO · Xyosted · AndroGel 1.62% · Padagis gel 1.62% · Natesto · Jatenzo · Kyzatrex · Aveed
“Not stated” means no separate refrigerator or light instruction was found in the checked label; it does not override the listed temperature. A metered actuation is one measured pump press. Follow the product's priming and discard instructions.
What we learned from putting the labels side by side
- No label we checked tells you to refrigerate testosterone. The Xyosted label goes further and says don't.
- AZMIRO is the odd one out. Its normal range starts lower, at 59°F, and its label permits excursions as low as 36°F. That's an excursion allowance, not an instruction to keep it in the fridge.
- Small vials are often single-dose. The 1 mL cypionate vials from Pfizer and Cipla are labeled single-dose. The 10 mL vials are multiple-dose. Read the words on your vial, not its size.
- The Pfizer, Cipla, and Wilshire cypionate labels we checked carry the same sentence about crystals. AZMIRO's label does not. It's covered in the crystals section.
- None of the multiple-dose vial labels we checked gives its own "use within X days after opening" date. This is the key to the 28-day confusion. See why.
Compounded testosterone plays by different rules
Some online programs and clinics dispense compounded testosterone. That means a pharmacy mixes it for patients instead of a drug company making it as an approved product. The FDA is clear that compounded drugs are not FDA-approved. They aren't the same as the products in the table above.
So don't borrow storage rules from a brand-name label for a compounded vial or cream. Your pharmacy's label is the rulebook. It should show how to store the medicine and a beyond-use date (BUD): the date after which the pharmacy says not to use it. If you can't find either one, call the pharmacy before you use it.
Should testosterone be refrigerated?
None of the U.S. product labels we checked call for routine refrigerator storage, and the Xyosted label says not to refrigerate or freeze it. Cold can make oil-based testosterone vials form crystals. If your pharmacy label says something different, ask your pharmacist to confirm the instructions for your exact product.
The fridge feels like the "safe" choice. It isn't the labeled storage choice for any product in our table. One reader in a forum thread asked, after keeping vials in the fridge for about a month, "So are mine ruined?" That reader later said they were used to putting anything in a vial in the fridge.
What happens if you refrigerate testosterone cypionate
Cypionate labels explain that crystals can form "during storage at temperatures lower than recommended." In other words: too cold, and some of the testosterone can come out of the oil as crystals. The label also says what to do about it, which we cover in the crystals section.
"My home runs hot. Should I use the fridge instead?"
The labels don't say that, so we won't either. Look for the coolest room-temperature spot you have, like an interior closet away from windows and appliances. If your home stays above the label range for long stretches, ask your pharmacist what they recommend for your exact product.
What if it froze?
Freezing is different from a chilly room. Xyosted's instructions say don't refrigerate or freeze it. For any product that froze solid, cracked, or has a damaged stopper, don't use it. Call your pharmacy. Write down what happened first. The storage record below helps.
Testosterone vial shelf life: how long is an opened vial good for?
An unopened, manufacturer-sealed vial is good until its expiration date only if it has been stored as labeled and has no earlier discard date. Once a multiple-dose vial is punctured, CDC guidance based on USP standards says to date it and discard it within 28 days unless the manufacturer states another date, never beyond the original expiration date. A single-dose vial isn't meant to be saved; a compounded multiple-dose injectable vial follows the earlier of its pharmacy beyond-use date or 28 days after first entry.
It depends on which date applies.
This is where most of the confusion lives. So let's untangle it.
Who sets your discard date?
The rule of thumb: when more than one date applies, the earliest one wins. Never pick the later date just because it's more convenient.
Sources: CDC, Preventing Unsafe Injection Practices · USP <797> FAQs, questions 193–194 · Xyosted Instructions for Use
Where the "28-day rule" actually comes from
Here's the part almost nobody explains.
The 28 days doesn't come from a testosterone study. It comes from USP <797>, a sterile-handling standard used by pharmacies and clinics, and from CDC injection-safety guidance built on it. CDC's wording says that once a multiple-dose vial is opened, for example by a needle puncture, "the vial should be dated and discarded within 28 days unless the manufacturer states another date for that opened vial." CDC adds that the discard date should never go past the original expiration date.
Why 28 days? Multiple-dose vials typically contain a preservative. The cypionate vials above use benzyl alcohol. Hikma's enanthate uses chlorobutanol. The preservative helps limit bacteria. But CDC points out that it doesn't stop viruses and doesn't give complete protection against bacteria either. Every needle puncture is a chance for germs to get in. So the 28-day limit is about contamination risk after the stopper is punctured. It isn't about the testosterone "wearing out" on day 29.
Why does a 10 mL vial hold more than 28 days of medicine?
Fair question.
The honest answer: vial size isn't an instruction for how long to use it. The multiple-dose vial labels we checked don't set a different after-opening limit. The 28-day guidance is written for healthcare settings; that does not make months of at-home use a verified exception. That's exactly why the right move is to ask your pharmacist what discard date to write on your vial, and to get the answer in writing. Some pharmacies print one on the label. Some may offer a smaller vial size.
What we won't do is tell you a 10 mL vial is "fine for months." Nobody can promise that from a website, and the guidance doesn't support it.
Single-dose means single-dose
A vial marked "single-dose" stays single-dose even if it contains a preservative. The 1 mL cypionate products above contain benzyl alcohol. CDC is direct about this: if a single-dose vial seems to hold more than one dose, don't save it for later, even for the same person. The AZMIRO label says to discard any unused portion.
"Does taking it out of the box start the clock?"
No. The clock in the CDC guidance starts when the vial is opened, such as the first needle puncture of the stopper. Removing the outer carton isn't that. But keep the carton anyway if your label says to protect from light.
Does testosterone expire?
Yes. Testosterone has an expiration date or, for a compounded preparation, a pharmacy beyond-use date; looking normal doesn't extend either one, and storage problems or an earlier discard date can make a container unusable sooner. Throw out expired testosterone the right way, and ask your prescriber or pharmacy about a replacement.
Expiration date vs. beyond-use date
- Expiration date (EXP): set by the manufacturer for the unopened product, stored the way the label says.
- Beyond-use date (BUD): set by a pharmacy. It shows up on compounded products, and sometimes on repackaged or dispensed ones. It can come before the expiration date.
If the EXP shows only a month and year, like "EXP 2027-08," it's generally read as good through the last day of that month. An earlier BUD or discard date still comes first. (FDA labeling guidance)
"It still looks fine. Can I use it?"
FDA explains that expiration dates depend on labeled storage conditions. Clear liquid can still be past its date, or past its safe in-use window. How it looks can't prove how strong it is or whether it's sterile. Go by the date. If you're running low because a vial expired, talk to your pharmacy and prescriber. Don't try to stretch your supply or change your schedule on your own.
Crystallized testosterone: what it means and what to do
Crystals can form in some testosterone vials when they get too cold. The Pfizer, Cipla, and Wilshire cypionate labels say warming and shaking should redissolve cold-related crystals, but they do not give a method, temperature, or time. If crystals don't fully dissolve, the liquid stays cloudy, or you see anything else floating, don't use it and call your pharmacist.
This is the moment that sends a lot of people searching. You pull out the vial and see white needles or a cloudy haze. Take a breath. Here's what's known.
What the label says
The Pfizer, Cipla, and Wilshire cypionate labels we checked include this sentence:
"Warming and shaking the vial should redissolve any crystals that may have formed during storage at temperatures lower than recommended."
In letters dated April 13, 2015, and September 6, 2016, Pfizer and Sun Pharma each described investigations into crystal complaints about their cypionate. Both reported that the crystals didn't affect safety, effectiveness, or product quality when the vial was used as the package insert directs. (Pfizer letter · Sun Pharma letter)
Those findings cover the products and conditions the companies investigated; they don't confirm the condition of your vial or an unknown heat or freezing exposure.
What to do, in label-friendly steps
- Let the vial come up to room temperature on its own.
- The Pfizer, Cipla, and Wilshire labels say to warm and shake the vial, but they don't give a warming method, temperature, or time. Ask your pharmacist how to follow that instruction for your exact product.
- Hold it up to the light and look closely.
- If your pharmacy gave you warming instructions for your exact product, follow those.
Hikma's enanthate label gives a different instruction: warm and rotate the vial between your palms. That wording belongs to that product. (Hikma label)
Don't microwave it, boil it, put it near a flame, or use any other strong heat.
Normal vs. call-the-pharmacist vs. don't use
CDC says to discard a vial when its sterility is compromised or questionable, even if the liquid looks normal.
One big exception: Xyosted
The warm-and-shake advice above is for the Pfizer, Cipla, and Wilshire cypionate vials. Xyosted is different. Its label says not to use it if the liquid is cloudy or has visible particles. There's no warm-and-shake fix for an autoinjector. If yours looks off, don't use it, and call the pharmacy or the number on the carton.
Ready to deal with it? Jot down what you see and when it happened, then fill in your storage record. It turns "my vial looks weird" into a specific question for your pharmacist.
What if your testosterone got too hot, froze, or arrived warm?
Write down what happened: the product, the dates, how long, and the temperature if you know it, or "unknown" if you don't. Then contact the dispensing pharmacy before using that container, even if the medicine looks normal. Labels give a normal range and sometimes an excursion range, but they don't give a universal number of hours that makes an unknown exposure acceptable.
When the box shows up
Bring it inside right away. Leave it in the carton and follow its labeled storage temperature. Then check five things:
- Right drug and strength? Does the label match your prescription?
- Dates? Note the expiration date, and any BUD or discard date.
- Seal intact? Check the flip-off cap, stopper, or safety seal.
- Liquid clear? For injection products, check the visible liquid after it reaches the label's storage range.
- Packaging OK? Look for a crushed, wet, or damaged box.
If something's off, call the pharmacy on the label, not just the app or clinic you ordered through.
Left in a hot car or a summer mailbox
Hours in a parked car can go far past the label range. The labels don't say how long is too long, and neither can we. If you can't say how hot it got or for how long, treat the temperature as unknown. Let the pharmacist decide.
Replacement may be possible
Don't assume a damaged or questionable vial is just money lost. The Xyosted Medication Guide states that, for controlled substances, the maker will provide a one-time replacement if the product is damaged or unusable due to unforeseen circumstances. Other makers and pharmacies have their own policies. Ask.
What to tell your pharmacist (and how to ask)
Give the pharmacist the exact product and maker, the container type, every date on the label, and a clear account of what happened, including what you don't know. The record and question below organize those facts for a specific answer instead of a general one.
Here's the honest part. We can't tell you whether your specific vial is safe to use. No website can. We can't see your vial, and its temperature history lives in your memory, a thermometer log, or maybe a delivery app.
That's not a dead end. It's the reason this section exists. Your pharmacist can review those details and contact the manufacturer if needed. A call that starts with "my testosterone looks weird" leaves out the product, dates, and storage history. Use the record below to ask a specific question.
Your testosterone storage record
Print it, or copy it into your phone's notes.
Copy-and-paste question for your pharmacist
I have [exact product] from [manufacturer or compounding pharmacy], in a container labeled [single-dose / multiple-dose]. The NDC is [number, if shown] and the lot is [number, if shown]. The printed storage instruction says [text]. The expiration date is [date]. The pharmacy BUD or discard date is [date / none]. Any separate after-opening instruction says [text / none shown]. I first punctured it on [date / not yet / unknown]. It was exposed to [what happened] for about [time / unknown], at [temperature / unknown]. Right now I see [describe it, or "no visible change"]. Can you confirm the right storage and discard instructions for this exact product, and whether this needs a replacement or a check with the manufacturer? If it needs replacing, who should I contact so I don't miss a scheduled dose? Please send these instructions in writing.
That message does a lot of work. It names the exact product, separates the dates, admits what you don't know, and asks for a written answer.
How to travel with testosterone
Pack testosterone in your carry-on, in its pharmacy-labeled box, with the supplies you need. TSA allows medically necessary liquids over 3.4 ounces in reasonable amounts, and syringes that go with your medication, but you must tell the officer at screening. Keep it with you to avoid lost or delayed checked bags, and never leave it in a parked car.
Flying in the U.S.
Rochester International Airport's medication guidance, quoting a TSA spokesperson, gives these screening steps:
- Tell the TSA officer before screening starts that you have medically necessary liquids, gels, or related supplies.
- Put them in a separate bin, along with related supplies like syringes.
- Expect extra screening. Officers may test liquids. You can tell them if you don't want your medication X-rayed or opened, but extra steps may follow.
Keep it in carry-on so it stays with you, and protect it from heat and cold along the way. Check TSA's current guidance before you leave.
Bring a travel sharps container
The FDA recommends carrying a small travel-size sharps container so used needles never go loose in a bag or a hotel trash can. (FDA sharps guidance)
Road trips
Keep testosterone in the cabin with you, not the trunk, and never in a parked car. If you use an insulated bag, don't put an ice pack directly against vials. An ice pack can cool the whole bag below the label range even without touching the vial. Remember, cold can cause crystals.
Leaving the country
Testosterone is a controlled substance in many countries, and the rules vary. Check your destination's rules and the rules for countries where you have layovers before you go, and carry your prescription. A prescription alone does not guarantee entry. (CDC travel guidance)
Keep testosterone safe from kids, partners, and pets
Store testosterone locked or up high, never share it, and know how much you have. AndroGel 1.62% needs extra care: its label warns that children have developed signs of early puberty after contact with testosterone gel on someone else's skin, and the gel is flammable until dry. Toss used gel packets and pumps where kids and pets can't get them.
- Injectables and capsules: keep them up high or locked. Testosterone is a controlled substance. Track your supply.
- Skin gels (AndroGel 1.62% and the Padagis generic): the boxed warning says kids should avoid contact with unwashed or unclothed application sites. Keep pumps and packets out of reach. Labels say used pumps and packets go in the household trash in a way that prevents children or pets from getting into them.
- Alcohol-based skin gels are flammable until dry. The AndroGel label says to avoid fire, flames, or smoking until the gel dries. Don't store it next to a heat source.
- Natesto: its label says the package is not child-resistant. Store it out of reach.
If a child or partner touches an unwashed or uncovered AndroGel application site, wash the affected skin with soap and water right away and contact a health professional about the exposure. (AndroGel Medication Guide)
If a child gets into testosterone, call Poison Control at 1-800-222-1222. If the child has trouble breathing, has a seizure, collapses, or can't be awakened, call 911. If a pet gets into it, call your veterinarian.
How to dispose of testosterone and used needles
Take unused or expired testosterone to a drug take-back site or use a mail-back option. If neither is available, the product has no special disposal instructions, and it is not on FDA's flush list, mix it with used coffee grounds or cat litter, seal it, and throw it away. Needles and autoinjectors are different: put them in a sharps container right away, never loose in the trash.
The medicine itself
- Take-back first. DEA's most recent National Prescription Drug Take Back Day was Saturday, October 24, 2026. You don't have to wait for the next one. DEA says more than 15,300 pharmacies, hospitals, and businesses offer safe medication disposal year-round. Find one at DEATakeBack.com. (DEA announcement)
- No take-back or mail-back option available? Follow your product's disposal instructions and FDA's household-trash method for medicines not on the flush list. Mix the medicine with something unappealing like dirt, cat litter, or used coffee grounds. Seal it in a bag or container and throw it in your trash. Don't flush medicine unless it's on FDA's flush list. (FDA disposal guidance)
- Kyzatrex: its label points you to a take-back option.
- Used gel pumps and packets: household trash, kept away from kids and pets, per the label.
Scratch out personal information on empty packaging before discarding it. Do not open or take apart an autoinjector to empty the medicine.
Needles, syringes, and autoinjectors
- Right after use, put sharps in an FDA-cleared sharps container. If you can't get one, many communities accept a heavy-duty plastic household container, like a laundry detergent jug. It must stay upright, resist leaks, have a tight, puncture-resistant lid, and be labeled for sharps. (FDA container guidance)
- When it's about three-quarters full, follow your community's rules for getting rid of it. Options can include drop-off sites, mail-back programs, or special pickup.
Never put loose needles in the trash or recycling, and never flush them. The Xyosted instructions say not to throw the autoinjector in household trash. And note that drug take-back boxes usually don't accept sharps.
Questions your TRT provider should answer about your medication
If you get testosterone from an online program or clinic, you should be able to find out which pharmacy fills it, whether it's FDA-approved or compounded, what dates are on the label, how it ships in hot and cold weather, and what happens if it arrives damaged. Clear answers to these questions are a good sign of a transparent provider.
A vial problem today is a pharmacy call, not a reason to switch providers. If that's you, use the storage record above first.
But if a storage scare made you realize you don't know much about where your testosterone comes from, check your provider against these six questions:
- Which pharmacy dispenses my testosterone?
- Is it an FDA-approved product or compounded?
- Does my label show an expiration date, a BUD, or both?
- Is my vial single-dose or multiple-dose, and what discard date should I use once it's open?
- How do you ship in very hot or very cold weather?
- What's your policy if a vial arrives crystallized, damaged, or warm?
If your provider couldn't clearly answer these questions, it may be worth comparing your options. TRT Provider Guide's Find My TRT Path tool asks five quick questions to help you explore online TRT programs, listed costs, and next steps. It's an educational guide, not a diagnosis or a prescription. A licensed provider decides whether treatment is right for you. See how the tool handles your answers.
How we verified this guide
We built this guide by reading 12 official U.S. testosterone label records and comparing them with FDA, CDC, USP, DEA, and airport-published TSA guidance. We checked published instructions. We didn't test any medicine, and we can't assess your specific container or shipment.
What we actually verified
Our evidence rules are explained in Research and Data Methodology. For how we evaluate providers on pages that compare them, see How We Review TRT Providers. This page doesn't rank or score providers. See our Editorial Standards, or report a changed label or a correction.
Frequently asked questions about storing testosterone
Most products in this guide belong at room temperature, and no label we checked recommends routine refrigeration. The container type, dates, and product-specific instructions decide how long they can be kept.
Does testosterone cypionate need to be refrigerated?
No. Pfizer and the generic cypionate labels we checked say to store it at 68–77°F (20–25°C) and protect it from light. Refrigeration can cause crystals.
Can I keep testosterone in the bathroom?
It's better not to. Bathrooms get warm and humid, and heat and moisture can damage medicines. A bedroom drawer or closet shelf is a safer bet.
How long does an unopened testosterone vial last?
Until the expiration date printed on it, as long as it's stored the way the label says and no earlier discard date applies. For a compounded vial, follow the pharmacy BUD. There's no single number of years that applies to every product. Read your vial.
Is testosterone still good after 28 days?
For an opened multiple-dose vial, CDC guidance based on USP standards says to discard it within 28 days of first puncture, unless the manufacturer states another date; never go past the expiration date. The multiple-dose vial labels we checked don't give a different date. Ask your pharmacist what discard date to use, and get it in writing.
Can I tell if a vial is multiple-dose from its size?
No. Read the words on the vial and box. For example, 1 mL cypionate vials from Pfizer and Cipla are labeled single-dose, while their 10 mL vials are multiple-dose.
Can I pre-fill syringes and store them?
Don't assume a vial's storage rules carry over to a syringe you filled yourself. CDC says the safest practice is to prepare an injection as close as possible to when it's given. Ask your pharmacist before storing filled syringes.
Is cloudy testosterone bad?
Cold can cause crystals in the Pfizer, Cipla, and Wilshire cypionate vials above. Follow your exact label and pharmacist's instructions; clear liquid still does not prove potency or sterility. If it stays cloudy, has particles, or changed color, don't use it. Xyosted should never be used if it's cloudy.
Can testosterone go bad in heat?
Labels set a temperature range, and heat outside that range for an unknown time is a question for your pharmacist. Labels don't say how many hours outside the range is acceptable, so don't rely on how it looks.
What if I accidentally froze my testosterone?
Don't use a product that froze solid, cracked, or has a damaged seal or stopper. Write down what happened and call your pharmacy. Xyosted's label specifically says not to freeze it.
Does light damage testosterone?
Several injectable labels say to protect it from light, and Xyosted and AZMIRO say to keep it in the carton. The easy fix: leave it in the box.
Can I bring testosterone on a plane?
For U.S. screening, yes: carry it with you. Tell the TSA officer about liquid medication before screening, put it in a separate bin with your syringes, and expect extra screening. For international travel, check destination and layover rules first.
How should I store testosterone gel?
AndroGel 1.62% and the Padagis 1.62% skin gel belong at 68–77°F (20–25°C), away from fire or flame, and out of reach of children. Toss used packets and pumps in the trash so kids and pets can't get into them. Nasal gels and compounded gels follow their own labels.
How do I store Xyosted?
At room temperature, 68–77°F (20–25°C), in its carton until you use it. Never refrigerate or freeze it. Once the cap is off, use it or discard it. Don't re-cap it for later.
Is compounded testosterone stored differently?
It follows its own pharmacy label, not a brand-name label. For compounded multiple-dose injectable preparations, USP standards say not to use them past their beyond-use date or 28 days after first entry, whichever comes first.
My pharmacy label and an online guide disagree. Which do I follow?
Ask your dispensing pharmacist to sort it out for your exact product. Don't swap in another brand's instructions, and don't just pick the later date.
Is shelf life the same as testosterone half-life?
No. Shelf life is about the medicine in its container. Half-life is about how levels change in your body after a dose. Our testosterone half-life guide covers that.
How do I throw away testosterone?
Use a drug take-back or mail-back option first. If neither is available, follow the product's disposal instructions; medicines without special instructions that are not on FDA's flush list can be mixed with something unappealing, sealed, and put in household trash. Put needles and autoinjectors in a sharps container, never loose in the trash.
The short version: keep it at the temperature on its label, in the box, dry, and locked away. Know which date controls your vial. When something looks or feels wrong, write it down and call your pharmacist with the details.
Also comparing online TRT programs? Use our free Find My TRT Path tool.
Sources
- DailyMed — Depo-Testosterone (Pfizer/Pharmacia & Upjohn); prescribing information revised September 2025
- DailyMed — Testosterone cypionate (Cipla); prescribing information revised January 2022, label record updated May 2025
- DailyMed — Testosterone cypionate (Wilshire; Bryant Ranch repackager); prescribing information revised February 2019, label record updated February 2025
- DailyMed — Testosterone enanthate (Hikma); prescribing information revised June 2025
- DailyMed — AZMIRO (Azurity); prescribing information revised July 2025
- DailyMed — Xyosted (Antares), label, Medication Guide, and Instructions for Use; revised July 2025
- DailyMed — AndroGel 1.62% (ASCEND); prescribing information revised October 2025
- DailyMed — Testosterone gel 1.62% (Padagis); prescribing information revised August 2025
- DailyMed — Natesto (Acerus); prescribing information revised July 2025
- DailyMed — Jatenzo (Tolmar); prescribing information revised September 2025
- DailyMed — Kyzatrex (Marius); prescribing information revised August 2026
- DailyMed — Aveed (Endo); prescribing information revised July 2025
- Pfizer — Depo-Testosterone crystallization communication, April 13, 2015
- Sun Pharma — Testosterone cypionate crystallization letter, September 6, 2016
- CDC — Preventing Unsafe Injection Practices, March 26, 2024
- USP <797> FAQs — beyond-use dates and first-entry limits, questions 193–194; updated December 11, 2023
- FDA — Expiration Dates: Questions and Answers
- FDA — Safety Considerations for Container Labels and Carton Labeling Design, May 2022; expiration dates and beyond-use dates
- FDA — Compounding and the FDA: Questions and Answers
- MedlinePlus — Storing your medicines; reviewed January 14, 2026
- FDA — Where and How to Dispose of Unused Medicines
- FDA — Safely Using Sharps at Home, at Work, and on Travel
- FDA — Best Way to Get Rid of Used Needles and Other Sharps
- FDA — Sharps Disposal Containers
- DEA — Drug Scheduling
- DEA — 31st National Prescription Drug Take Back Day; announcement October 23, 2026
- CDC Yellow Book 2026 — Traveling with Prohibited or Restricted Medications
- Rochester International Airport — Flying with medications, quoting TSA guidance; October 16, 2026
- TSA — Disabilities and Medical Conditions
- National Capital Poison Center — Get help for a poisoning
- Reader question quoted from Reddit — used for reader language, not medical guidance