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[DOI] [PubMed] [Google Scholar] 102.Hummel J., Benkendorff C., Fritsche L., Prystupa K., Vosseler A., Gancheva S., Trenkamp S., Birkenfeld A.L., Preissl H., Roden M., et al

Transient blockade of NMDARs by antagonists during early postnatal life causes at adulthood behavioral phenotypes relevant to schizophrenia [122,123,124]

In the foundational animal study, even doses 200x above the effective GH-releasing dose did not elevate cortisol, demonstrating true selectivity rather than mere dose separation

Effects last several hours
