temazepam is a name for the chemical 7-Chloro-1,3-dihydro-3-hydroxy-1-methyl-5-phenyl-1,4-benzodiazepin-2-one. This looks confusing but it is Important to answering your question. If they changed the structure of the molecule, added subtracted, or mixed up those numbers it would no llnger be temazepam just a temazepam like molecule. Because think of it like a check list in order to be labed temazepam it has to have all of those structures in exactly those places and nothing more nothing less. What he is refer to most likely is a change in pill formulations to make injection harder. Going from it disolved in a gel to as a powder is not a chemical change its like if you dissolve sugar into water vs have sugar both are the same atless u heat the sugar then a chemical reaction could take place called carmelization. Also they probablly changed the fillers which doesnt change the chemical. Picture a bowl of grapes then you put them in a bigger bowel and add in pinapple and kiwi the grapes didnt change. If yyou. Now switch to grapes apples and melon the grapes are still the same
