I was using pharma opiates, DHC and codeine. I best not take a kratom break right now, as I have been dosing since the day after I quit opiates in July. I could never discern the affects between strains, some days I have a very high tolerance, however, yesterday I took 12-16g less, not on purpose. I get wobbles, but no more nausea. As I took upwards of 40g yesterday, would you mind sending a link or elaborating on the other alkaloids in the plant that can colour or negatively affect the