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Evidence for using PRN pharmacotherapy to treat undifferentiated acute agitation or aggression
Jason Patel, Samuel Frankel, Rajesh R Tampi1
1Chairman, Department of Psychiatry and Behavioral Sciences, Cleveland Clinic Akron General, Akron, Ohio, 44307 USA.
Background:
This systematic review identified published studies that evaluated the use of pro re nata (PRN) medication in patients with acute agitation or aggression of undifferentiated etiology.
Methods:
A literature search was conducted of PubMed and MEDLINE for randomized controlled trials (RCTs) that evaluated the use of PRN medications for individuals with undifferentiated agitation or aggression. Bibliographic databases of published articles were also searched for additional studies.
Results:
A total of 15 studies were identified that assessed the effects of first-generation antipsychotics (FGAs), second-generation antipsychotics (SGAs), benzodiazepines, and combination therapies. All RCTs showed variable degrees of sedation and decreased agitation over time with the use of these medications, as well as variable levels of adverse events.
Conclusions:
Evidence exists to support the use of specific SGAs as firstline PRN medications in the management of acutely agitated individuals. While evidence exists to support the use of FGAs, benzodiazepines, and combination therapy, efficacy is similar for each class, and SGAs appear to have the most favorable adverse effect profile.
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Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:

