<unk>  is a form of stimulation (sometimes suicidal) or agitation that has been observed in association with some psychoactive drugs. A causative role has not been established. Pfizer has denied that sertraline can cause such effects.
Activation syndrome
Cytokine release syndrome
Cryptic shock
Tumor lysis syndrome
Ischemic cascade
Post-intensive care syndrome
Distributive shock
Second-impact syndrome