Answer:

it would alter the effects the medicine should have. or worse, it could bring health risks to whoever will take the medicine.

Explanation:

certain medicines, like vaccines, needs to be accurately prepared for them to be effective. if there's a change or alteration in the measurements there will be corresponding effects. it go from the medicine being impotent, to having side effects to users/patients or in some cases the effects can even be fatal or cause deaths.