What should I avoid while taking Celontin?

Celontin may cause certain side effect, such as dizziness, drowsiness, and impaired vision, that may affect your ability to think or react quickly. Because of this, it's recommended that you avoid driving and other potentially dangerous activities until you know how your body responds to the medication. Even after you've been taking Celontin for a while, you should always be careful while driving and doing other tasks that require focus and alertness. Also, because Celontin may interact with certain doses of some other medications, don't start or change any medications without first talking to your doctor.