These tablets are suitable for the production of methamphetamine. You need to extract the pseudoephedrine from them.
I do not know what kind of shell you have and whether ephedrine can be extracted with alcohol.
Therefore, I would make dust from tablets and dissolve everything in water, add a solution of NaOH alkali to nsh 11-12 and fill in petroleum ether ... extract the base several times with ether and wash it with water. I would dry it out from the water.
I would distill the petroleum ether and convert the base into pseudoephedrine hydrochloride.
Then choose the technology by which you want to get meth.