Take TRINTELLIX exactly as your healthcare professionals tell you to take it Take TRINTELLIX at about the same time each day Your healthcare professional may need to change the dose of TRINTELLIX until it is the right dose for you Do not start or stop taking TRINTELLIX without talking to your healthcare professional first. Suddenly stopping TRINTELLIX when you take higher doses may cause you to have side effects, including headache, stiff muscles, mood swings, sudden outbursts of anger, dizziness or feeling lightheaded, and runny nose. TRINTELLIX may be taken with or without food. If you take too much TRINTELLIX, call the Poison Control Center at 1-800-222-1222 or go to the nearest hospital emergency room right away.