Great talk with Acorda Therapeutics founder Ron Cohen about INBRIJA. If you or a loved one have ever experienced OFF PERIODS (Most of us have) then this is a must listen. INBRIJA is an inhaled form of levodopa that you can use with your regular carbidopa/levodopa Parkinson’s medication. INBRIJA does not replace your regular carbidopa/levodopa medicine. INBRIJA can help manage OFF periods. INBRIJA may start to work in as soon as 10 minutes.