After her 4th 100mg capsule of amantadine (over 3 days), for worsening tremor-dominant PD, Edith suffered severe nausea & lightheadedness that put her to bed for 18 hours until it cleared. Stopped her 2 Eldepryl/day also during that period. In spite of these adverse reactions, her tremor seemed better for that brief period. Now she's back on Eldepryl 5mg/day and restarted amantadine syrup; very slowly increasing the dose. We would appreciate advice from anyone with a similar experience on how to achieve an effective dose of amantadine without repeating those side effects. Thank you, Ralph.