clonidine + ketamine

Clonidine + ketamine is a combination of two small molecule drugs, clonidine and ketamine, used together primarily in research and clinical settings to manage pain or psychiatric conditions such as treatment-resistant depression. Clonidine is a centrally acting alpha-2 adrenergic agonist that reduces sympathetic outflow, leading to decreased blood pressure and sedative effects. Ketamine is an NMDA receptor antagonist with dissociative anesthetic properties and rapid-acting antidepressant effects at subanesthetic doses. When co-administered, clonidine may mitigate some of the psychotomimetic (hallucinogenic) and sympathomimetic (cardiovascular stimulating) side effects associated with ketamine without interfering with its therapeutic efficacy[1][3][7]. This combination has been studied for its safety, tolerability, and potential synergistic analgesic or antidepressant benefits[1][7].