There are a couple, yeah.
Young, C. R. (1997). Sertraline treatment of hallucinogen persisting perception disorder. Journal of Clinical Psychiatry, 58(2), 85-85.
Reports the case of a 22-yr-old man who presented with hallucinogen persisting perception disorder and symptoms of mild depression 6 mo after discontinuing the use of LSD. Antidepressant treatment was begun with sertraline, until a target dose of 100 mg was reached. Mild exacerbations of the LSD-like phenomena were noted for 2-4 days after each dosage increase. Within 1 mo of reaching the target dose the perceptual disturbances decreased until they had almost completely remitted, and the depressive symptoms also improved. It is hypothesized that hallucinogen persisting perception disorder is serotonergically mediated, and that sertraline initially exacerbates the perceptual disturbances, but attenuates them after chronic administration. (PsycINFO Database Record © 2008 APA, all rights reserved)