LDK

The Authority on
Low-Dose Ketamine
Troches, Tablets & Oral

The definitive resource for low-dose ketamine therapy — sublingual troches, oral tablets, and liquid suspensions. Prescribing guidance, compounding pharmacy information, dosing research, and clinical evidence.

Low-Dose Oral Forms
3 Forms
Troches, tablets, liquid suspension
2.5-5 mg
Typical low-dose range
At Home
Prescribed via telehealth or clinic

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Latest Research

79 articles
researchFeb 2026Quick

How Fast Does Ketamine Work for Depression?

Low-dose ketamine can produce antidepressant effects within hours, with most patients noticing improvement in 1 to 4 hours after an IV infusion.

researchFeb 2026Quick

How Long Do Ketamine's Antidepressant Effects Last?

The antidepressant effects of a single ketamine infusion typically last 3 to 14 days, with repeated treatments extending the duration of benefit.

researchFeb 2026Quick

What Is the Response Rate for Ketamine Therapy?

Approximately 50 to 70 percent of patients with treatment-resistant depression respond to a course of low-dose ketamine infusions.

researchFeb 2026

Biomarkers for Predicting Ketamine Treatment Response

A review of emerging biological markers that may predict which patients will respond to ketamine therapy, including inflammatory markers, neuroimaging signatures, genetic polymorphisms, and electrophysiological features.

researchFeb 2026

Ketamine and Neuroinflammation: How Anti-Inflammatory Effects Support Mental Health

An evidence-based review of ketamine's anti-inflammatory mechanisms, including cytokine modulation, microglial regulation, and blood-brain barrier effects, and how these properties contribute to its antidepressant efficacy.

researchSep 2025

Sex Differences in Ketamine Treatment Response: Hormonal and Genetic Factors

Examining sex differences in ketamine treatment response, covering estrogen-NMDA interactions, progesterone modulation, genetic factors, and implications for personalized dosing.

Clinical Disclaimer

This website provides evidence-based information for educational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. Always consult with a qualified healthcare provider before making decisions about your health or treatment options. Ketamine therapy should only be administered under proper medical supervision.