<<Disclaimer: Verify this information before applying it to your situation.>>
Have you tried Dairy Ease? I am not celiac so am not sure if it is GF
but have used it for lactose intolerance myself. From the label:
INGREDIENTS: Each tablet contains 3000 FCC lactase units. Also
contains Dibasic Calcium Phosphate, Mannitol, Colloidal Silicon
Dioxide and Magnesium Stearate.
Good luck,
Kathy