It’s safe to take more than the recommended dosage (which is 1 stick pack or 1/4 tsp).
Try experimenting with 1.5 or 2 doses on foods that are:
big trigger foods
large portions
stacking multiple FODMAP triggers
Dosing can be a bit of trial and error in the beginning, due to the variability of how much you are eating, your sensitivities, and the types of food you are trying FODZYME.
Here's a handy guide on how to figure out how much FODZYME to use.
Some of your trigger foods might require a second dose, especially if you are particularly sensitive.