Drug Interactions With Carbidopa-Levodopa CR
Phenytoin (Dilantin, Phenytek)
Phenytoin can make carbidopa-levodopa CR less effective. Check with your healthcare provider before taking these medications together.
There have been reports of occasional problems (such as high blood pressure or involuntary body movements) when carbidopa-levodopa CR was combined with a tricyclic antidepressant. Check with your healthcare provider before combining carbidopa-levodopa CR with a tricyclic antidepressant.