What dosage per day are you taking?

I requested and was prescribed 1 shot per month, but can't say that I've noticed any difference (I've only had 2 shots so far). I can't find the bottle right now to tell you the dosage.

Another MSer I know said she didn't notice any difference for half a year. I think hers were once a month.

Are the methylcobalamin lozenges what you can get at a health food store?