The Complete Guide to Ketamine Troches

What Is a Ketamine Troche?

A ketamine troche (pronounced "tro-key") is a small, compounded lozenge designed to dissolve slowly under the tongue or between the cheek and gum. Unlike IV ketamine infusions administered in a clinic, troches allow patients to self-administer ketamine at home under the guidance of a prescribing provider.

Troches are compounded by specialty pharmacies and are not commercially manufactured — each one is prepared according to a specific prescription. Our article on how troches are compounded explains this process in detail. The active ingredient, ketamine, is the same medication used in clinical settings for treatment-resistant depression, anxiety, PTSD, and chronic pain.

How Sublingual Absorption Works

When you place a troche under your tongue, the ketamine is absorbed through the highly vascularized sublingual mucosa directly into your bloodstream. This bypasses first-pass metabolism in the liver, which is why sublingual bioavailability (approximately 25-30%) is higher than oral swallowing alone (roughly 17-20%).

The key factors affecting absorption include:

• Dissolution time — Allowing the troche to dissolve fully over 15-30 minutes maximizes mucosal contact
• Saliva management — Holding saliva under the tongue rather than swallowing improves absorption
• Mucosal health — Avoiding eating, drinking, or smoking before administration helps ensure healthy mucosal tissue
• Troche formulation — Different compounding pharmacies use different bases (hard candy, soft lozenge, rapid dissolve tablet)

Typical Dosing Ranges

Ketamine troche dosing is highly individualized. Your provider will determine the appropriate dose based on your condition, body weight, medication history, and treatment response. General ranges observed in clinical practice include:

Frequency typically ranges from 2-3 times per week during the initial phase, potentially reducing to once weekly or less for maintenance.

Important: Never adjust your dose without consulting your prescribing provider. Ketamine is a controlled substance and should only be used as directed.

Administration Technique

Proper technique significantly impacts how well your troche works:

1. Prepare your environment — Find a quiet, comfortable space where you can sit or recline for 45-60 minutes
2. Place the troche — Position it under your tongue (sublingual) or between cheek and gum (buccal)
3. Let it dissolve — Do not chew, bite, or swallow the troche. Allow 15-30 minutes for full dissolution
4. Hold the saliva — Keep the medicated saliva in contact with your oral mucosa as long as comfortable
5. Spit or swallow — After the dissolution period, you may swallow remaining saliva or spit it out (discuss with your provider)
6. Rest afterward — Remain seated or lying down for at least 30 additional minutes. Do not drive or operate machinery

What to Expect During a Session

Each person's experience varies, but common sensations during a troche session include:

• A bitter or medicinal taste as the troche dissolves
• Mild numbness in the mouth and tongue
• Feelings of relaxation or drowsiness
• Mild perceptual changes (visual, auditory) at higher doses
• A sense of emotional distance or detachment (dissociation)
• Occasional nausea, especially in the first few sessions

Most sessions last 60-90 minutes from placement to feeling fully back to baseline.

Side Effects and Safety

Ketamine troches are generally well-tolerated when used as prescribed. Common side effects include:

• Nausea — Can be managed with anti-nausea medication or ginger
• Dizziness — Typically resolves within 30-60 minutes
• Dissociation — A known and expected effect at therapeutic doses
• Drowsiness — Plan to rest during and after sessions
• Elevated blood pressure — Usually mild and transient; your provider may ask you to monitor

Serious side effects are rare with supervised at-home use but should be reported to your provider immediately. For a detailed breakdown, see our troche side effects quick guide.

Cost and Accessibility

One of the primary advantages of troche therapy is cost. Compounded ketamine troches typically cost $1-15 per dose from specialty pharmacies, making at-home treatment significantly more accessible than in-clinic options:

• Troches: $100-400/month
• IV Infusions: $400-800 per session (typically 6 sessions in initial series)
• Spravato: $600-900 per session (may be partially covered by insurance)

Most telehealth ketamine providers offer monthly subscriptions that include consultations, prescriptions, and pharmacy coordination. Our insurance and cost guide covers what to expect financially.

References

• Ketamine for Treatment-Resistant Depression: Evidence and Mechanisms — Comprehensive review of ketamine's antidepressant mechanisms
• Sublingual and Oral Ketamine: A Systematic Review — Analysis of sublingual ketamine bioavailability and clinical outcomes
• NIMH: Ketamine Research — National Institute of Mental Health overview of ketamine research
• Mayo Clinic: Treatment-Resistant Depression — Overview of treatment options including ketamine