Teva and Actavis have the same inactive ingredients listed.
Inactive Ingredients:
magnesium stearate
microcrystalline cellulose
corn starch
D&C Yellow No. 10
FD&C Yellow No. 6
Note: Inactive ingredients may vary.
93 293 Pill - carbidopa/levodopa 25 mg / 1 mg
R 539 Pill - carbidopa/levodopa 25 mg / 1 mg