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Other relevant interactions: Colchicine (used for gout) may affect B12 absorption with long-term use Chloramphenicol (rarely used antibiotic) may blunt the haematological response to B12 treatment Monitoring considerations: Patients taking loop or thiazide diuretics require careful monitoring when initiating B12 therapy in severe deficiency, due to the risk of hypokalaemia during rapid cell production

[14] A dose of 200 mcg per day has been found to reduce TPO antibodies by about 50 percent within three months

ALS is a large glucoprotein that under physiological conditions are present in a two-fold molar excess (16)

(PMID: 25176261) Selank completed Phase III clinical trials in Russia for anxiety-related indications

That is 20 weeks at the starting dose, or 10 weeks if you have titrated up to 0.5mg