[Battle] Disabling the Berry "Use" command in-battle

It's me again, but with another request.

I've toyed around with G3T to prevent Berries and Potions from being used in battles, following the guide posted in this thread. (In G3T, setting both "Battle Script" and "Battle Usage" to 0 should work)
Problem is, while it works perfectly for Potions, Revives, Full Heals, Ethers and similar items (even the Poké Flute!), it doesn't work for the Berry Pouch, nor Berries. You can still try to open the Berry Pouch or use a Berry to reset the game. Is their use in battle managed elsewhere, and how?

Obviously it's for FireRed.

Hmm not to familiar with this, but try changing the offset: code to its item counterpart.
Example:
You put the antidote code onto the pecha berry code.