Frequently asked

Caution is warranted. Mesembrine and related alkaloids show serotonin-reuptake-inhibition activity in vitro. Combining kanna with prescription SSRIs, SNRIs, MAOIs, triptans, tramadol, or other serotonergic agents could theoretically increase serotonin-syndrome risk. There is no controlled human data quantifying this interaction. Discuss with your prescriber before combining.

Yes, as a dietary ingredient. It is not a scheduled substance and is sold legally in capsules, extracts, and raw plant form. It is not FDA-approved as a drug and may not be marketed with disease claims.

Traditional and modern reports describe a mild, sociable, anxiolytic effect at typical doses (25–100 mg standardized extract; higher amounts of crude plant). It is generally not described as hallucinogenic or strongly intoxicating in published accounts, though individual experiences vary.

They are unrelated plants with unrelated pharmacology. Kratom (Mitragyna speciosa) is a Southeast Asian tree whose alkaloids act at opioid receptors. Kanna is a South African succulent whose alkaloids act on monoamine reuptake and PDE4. Pooling them as "botanicals" obscures very different safety profiles.

Look for suppliers who can document compliance with South African access-and-benefit-sharing (ABS) requirements under the Nagoya Protocol, including benefit-sharing arrangements with the San Council and Khoi-Khoi communities. HG&H Pharmaceuticals (Zembrin) was the first to formalize such an agreement. Wild-harvested material without ABS documentation raises both legal and ethical flags.

Most controlled human studies with Zembrin used 25 mg per day for 8 weeks or fewer. Crude plant doses in traditional and ethnobotanical accounts range much higher because alkaloid content is lower and less consistent. We do not recommend specific doses on this site; that is a conversation with a clinician who knows you.