Removing the product rather than forbidding it
A rule that a particular product must not be used in a particular room is fragile, because it relies on somebody remembering which room and which product at the end of a shift. The robust version is that the product is not on the site at all: it is removed from the kit, not stocked in the cupboard, and not carried on the trolley. Then the restriction cannot be breached by forgetfulness.
Where a product is needed elsewhere in the same building, the separation is physical: different storage, different trolley staging, and colour or labelling that makes it obvious. That is the same principle as equipment separation and it works for the same reason. Physical arrangements survive tiredness, time pressure and staff changes in a way that instructions do not. Physical arrangements outlast instructions on every site, without exception.
