(R)-Ketamine

Price range: $40.00 through $900.00

Ketamine occurs as two mirror-image forms: (R)-ketamine and (S)-ketamine. While both interact with NMDA receptors, their balance can influence the character and duration of effects observed in research.

  • (S)-Ketamine (esketamine): Higher NMDA receptor potency; typically yields more pronounced dissociative/psychedelic effects; approved only in specific regulated formulations and settings.

  • (R)-Ketamine (arketamine): Lower NMDA potency; preclinical work suggests longer-duration antidepressant signals and fewer acute dissociative/pressor effects; not approved as a standalone therapy.

  • Recommended Dosages:
    • Oral: 200–300 mg
    • Intranasal: 30–200 mg

    Always approach dosage with caution, ensuring safe and informed use, particularly in a clinical or therapeutic context.