I can only echo everyone's reply - by all means go back to your Me-B12 regardless of the docs. I'm fortunate in that my PCP supported me for either the B12 shots or sublingual. I've been taking 2000ug/day now for ~6 months. My 1st B12 level after taking the supplement ~2months was ~750, maybe low by the forum standards but much higher than my previous levels so I'll continue taking it for the duration.

alkymst