How Should I Store Ketamine Tablet Tablets?

Proper storage of ketamine tablet is important for both safety and effectiveness. Improper storage can degrade the drug, reducing its potency and potentially compromising your treatment. Additionally, as a Schedule III controlled substance, ketamine has specific legal requirements for secure storage. If you plan to travel with your medication, see our guide on traveling with ketamine tablets. This guide covers everything you need to know.

General Storage Principles

Temperature

For most compounded ketamine tablet preparations (tablets and capsules):

• Room temperature storage: 59–77°F (15–25°C) is standard
• Avoid temperature extremes: don't store in cars, near windows with direct sunlight, or near heating/cooling vents
• Brief exposure to temperatures somewhat outside this range (e.g., a warm car for a few hours) typically won't cause immediate harm, but chronic exposure to heat or cold degrades drug stability

For troches/lozenges: Some troche bases — particularly cocoa butter formulations — have a lower melting point and may soften or melt at room temperature in warm environments. Your compounding pharmacy should specify:

• Whether your troches require refrigeration
• What temperature range is appropriate for your specific formulation
• Signs of degradation (changed texture, appearance, or consistency)

Polyethylene glycol (PEG) base troches: Generally stable at room temperature; no refrigeration typically required.

Cocoa butter base troches: May require refrigeration (below 65°F) or cool room storage to maintain solid consistency. If troches are soft or partially melted, discuss with your pharmacy.

Light

Ketamine is light-sensitive. Extended exposure to direct sunlight or bright fluorescent light can degrade the drug. Storage recommendations:

• Keep in the original pharmacy container (designed to be light-protective)
• Store in a drawer, cabinet, or other dark location
• Avoid leaving medication in transparent containers near windows
• Do not store on a countertop where it receives extended direct light

Most compounding pharmacies package ketamine in amber glass or amber-colored plastic containers specifically to reduce light exposure. Respect these packaging choices.

Humidity

Moisture degrades oral solid dosage forms (tablets, capsules) by:

• Causing physical degradation (caking, clumping, breakdown)
• Promoting chemical degradation of the drug
• Providing conditions for microbial growth

Avoid high-humidity environments:

• Bathrooms are a common — and poor — medication storage location; the daily shower creates significant humidity spikes
• Kitchens near sinks or stoves are also too humid for optimal storage

Use desiccant if provided: Some pharmacy packages include desiccant packets (silica gel). Keep these in the container; do not remove them.

Preferred storage locations:

• A dresser drawer in a bedroom (typically low humidity)
• A closet shelf
• A dedicated medication storage box or cabinet in a low-humidity room

Controlled Substance Security Requirements

Ketamine is a Schedule III controlled substance, and federal law requires that controlled substances be stored securely to prevent theft and diversion. While there is no specific home storage regulation prescribing the exact storage vessel for patients' own medications, the spirit of controlled substance laws and practical safety requires:

Secure Storage Principles

Lock it up: Store ketamine tablet in a locked container or locked cabinet, particularly in households with:

• Children of any age
• Teenagers (adolescents are at elevated risk for medication misuse)
• Visitors or guests who may access the home
• Any household member with a history of substance use disorder

Lockboxes: A simple lockbox ($20–$60 at most hardware or container stores) provides meaningful security. A combination lock or key lock prevents casual access.

Medication safes: Purpose-built medication safes provide more robust security and are appropriate for households where security is a significant concern.

High shelves and out-of-sight locations are better than nothing but insufficient as sole security measures for a controlled substance — particularly in households with motivated teenagers.

Consequences of Inadequate Security

• Child poisoning: Ketamine can be seriously harmful to children. Even tablets that look like candy to a young child represent a dangerous ingestion risk.
• Legal liability: If ketamine stored in your home is stolen and used by another person, inadequate security may have legal implications.
• Prescription privileges: Prescribers who learn that a patient's controlled substance was diverted may be required to address this situation, potentially including reevaluating the appropriateness of continued prescribing.

What to Do if Medication is Lost, Stolen, or Damaged

If stolen: File a police report (this is important documentation). Contact your prescriber and pharmacy. In most cases, the prescriber can write a new prescription, though some states have laws about replacing lost or stolen controlled substance prescriptions within a calendar period.

If damaged (dropped in water, heat-damaged troches, broken tablets): Contact your compounding pharmacy. Do not use significantly altered medication. Photograph the damage for documentation.

If lost: Contact your prescriber. Be transparent about the circumstances. Prescribers are more understanding of honest communication than unexplained requests for early refills.

Beyond-Use Dates and Shelf Life

Compounded medications have beyond-use dates (BUDs) — similar to expiration dates, but determined differently for compounded preparations.

What Beyond-Use Dates Mean

Beyond-use dates for compounded non-sterile oral preparations are typically assigned based on:

• USP Chapter <795> guidelines (which assign maximum BUDs based on preparation type and storage conditions)
• Pharmacy-specific stability data if available
• Product-specific stability information from the literature

Typical BUDs for ketamine tablet:

• Tablets and capsules: 6 months from preparation date (room temperature)
• Troches: 30–180 days depending on base (PEG bases typically 30–90 days; some formulations longer)
• Oral solutions: 14–30 days (shorter due to higher degradation risk in liquid form)

Your label will specify your product's beyond-use date. Honor this date — don't use medication beyond its BUD.

Do Not Use Expired Medication

Beyond-use dates reflect the manufacturer's confidence in the drug's potency and stability up to that point. Using medication past its BUD means:

• The actual drug content may have degraded
• You may receive a sub-therapeutic dose
• For psychiatric conditions, this can mean inadequate antidepressant effect or pain relief

If you notice your medication approaching its BUD with remaining supply, contact your pharmacy about proper disposal and refill timing.

Proper Disposal

Do not throw unused ketamine in the household trash or flush it down the toilet. Proper disposal options:

• DEA-authorized take-back locations: Many pharmacies and law enforcement offices participate in controlled substance take-back programs. Find a location at dea.gov/takebackday.
• Medication disposal pouches: Some pharmacies provide special pouches that deactivate medications for safe trash disposal.
• Ask your pharmacy: Your compounding pharmacy may have guidance on their preferred disposal method.

Never share your ketamine with others — this is illegal and dangerous.

Summary Checklist

• Store at room temperature (59–77°F) unless refrigeration is specified for your formulation
• Keep away from direct light; use the pharmacy's original container
• Store in a low-humidity location, not the bathroom
• Keep in a locked container, especially in homes with children or teenagers
• Honor the beyond-use date; do not use medication past this date
• Dispose of unused medication through an authorized take-back program
• Report theft or significant loss to police and your prescriber

References

• StatPearls: Ketamine — Comprehensive clinical reference on ketamine pharmacology, mechanisms of action, and therapeutic applications
• PubChem: Ketamine Compound Summary — NCBI chemical database entry with ketamine molecular data, pharmacokinetics, and bioactivity profiles
• MedlinePlus: Ketamine — National Library of Medicine consumer drug information on ketamine including uses, proper administration, and precautions
• FDA: Approved Drug Products — U.S. Food and Drug Administration searchable database of approved drug products and therapeutic equivalents
• SAMHSA: National Helpline — Substance Abuse and Mental Health Services Administration free treatment referral and information service