Some people seem to have luck by taking 100mg vitamin B1 before sleep for central apnea: https://www.cpaptalk.com/viewtopic/t176555/Found-a-vitamin-that-has-DR

Some people seem to have luck by taking 100mg vitamin B1 before sleep for central apnea: https://www.cpaptalk.com/viewtopic/t176555/Found-a-vitamin-that-has-DRASTICALLY-reduced-my-Central-Sleep-Apnea.html https://www.cpaptalk.com/viewtopic/t176555/Found-a-vitamin-t... Given B1 seems to be working similarly to acetazolamide but appears to be much safer, I am wondering if anyone is using it for altitude sickness? Doping up a few grams of thiamine just before climbing?