title: Pharmacologic Therapy for Posttraumatic Stress Disorder: Review of Prescriptions and Potential Drug-Drug Interactions in a Military Cohort.
abstract: OBJECTIVE
  To describe outpatient prescription treatment for active-duty military members with posttraumatic stress disorder (PTSD). Medical records were screened for drug-drug interactions with PTSD-related medications and for adverse drug events.
  
  
  METHODS
  A retrospective chart review was conducted of the medical records of active-duty service members aged 18 to 65 years who had a diagnosis of PTSD (ICD-9 criteria) and received psychiatric treatment at Naval Hospital Camp Pendleton, Camp Pendleton, California, between October 1, 2010, and October 31, 2010. Prescription medication treatment over a 6-month period (October 1, 2010, through March 31, 2011) was reviewed.
  
  
  RESULTS
  Among 275 patients, 243 (88.4%) had at least 1 prescription dispensed and 219 (79.6%) had at least 1 PTSD-related medication dispensed. More than 1 PTSD-related medication was dispensed to 153 (55.6%) patients. The most common medication classes dispensed were selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) (35.1%), novel antidepressants (15.6%), and anticonvulsants (15.0%). The most frequently dispensed PTSD-related medications were zolpidem: 149 (9.8%), sertraline: 147 (9.7%), gabapentin: 134 (8.8%), prazosin: 111 (7.3%), and trazodone: 110 (7.2%). In the subgroup of 219 patients who received PTSD-related medications, overlapping periods of treatment between an SSRI and another PTSD-related medication occurred in 58 (26.5%) patients. Potential drug-drug interactions with this combination involved 44 (20.1%) patients; no adverse drug events were reported. Among these 44 patients, 55 different potential drug-drug interactions were identified.
  
  
  CONCLUSIONS
  Patients receiving medications for PTSD are frequently treated with SSRIs or SNRIs and are likely to be prescribed more than 1 PTSD-related medication.
authors.affiliation: Department of Pharmacy, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Kara L
authors.initials: KL
authors.lastname: Jablonski
authors.affiliation: Clinical Investigations Department, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Maria D
authors.initials: MD
authors.lastname: Devore
authors.affiliation: Clinical Investigations Department, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Margaret A
authors.initials: MA
authors.lastname: Ryan
authors.affiliation: CDR, USPHS; Treatment Programs Department, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Emily L
authors.initials: EL
authors.lastname: Streeter
authors.affiliation: Clinical Investigations Department, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Jerlyn C
authors.initials: JC
authors.lastname: Tolentino
authors.affiliation: CDR, MSC, USN; Department of Pharmacy, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Angelica A
authors.initials: AA
authors.lastname: Klinski
authors.affiliation: Department of Pharmacy, Naval Hospital Camp Pendleton, Camp Pendleton, California.
authors.forename: Nahed
authors.initials: N
authors.lastname: Bahlawan