placebo saline infusion

Placebo saline infusion refers to the administration of an intravenous solution of sterile normal saline (0.9% sodium chloride in water) used as a control or sham treatment in clinical trials and diagnostic procedures. It is considered a "pure" placebo because it is pharmacologically inert and does not contain any active therapeutic ingredient[2][3][4]. The primary purpose of a placebo saline infusion is to mimic the experience of receiving an actual drug or intervention without imparting any direct physiological effect, thereby allowing researchers to isolate the true efficacy and safety profile of investigational treatments by controlling for psychological and procedural effects such as patient expectation (the "placebo effect")[1][2][3]. In some diagnostic contexts, such as distinguishing nonepileptic seizures from epileptic ones, provocative use of a placebo saline infusion may be employed; however, this practice raises ethical concerns due to its deceptive nature[5]. While minor physiological responses can occur due to psychological mechanisms (e.g., pain relief via endogenous opioid activation), these are not attributable to the pharmacological action of the infused substance itself[6][7].

Brand names

Hyper-SalNebuSalPulmoSalSodium Chloride InhalationRingersSag-MSclerodexSuflaveTis-U-sol

Other names

saline placebointravenous saline placeboinert saline injection