Report True Calm/ Day 7 of Delsym to Lower Glutamate in PANS / PANDAS (Lyme included) Posted March 15, 2017 Hello! I'm that Nancy. Yes Delsym helped my son greatly except after awhile it make him have a hard time urinating. Namenda controls high glutamate as well. Might want to try that. I can be found on the PANDAS Parents Group and Parents of Kids who have PANDAS on Facebook as Nancy Tozier. Sorry I never saw your message requests.