title: The comparative preemptive analgesic efficacy of addition of vitamin B complex to gabapentin versus gabapentin alone in women undergoing cesarean section under spinal anesthesia: A prospective randomized double-blind study.
abstract: BACKGROUND
  Development of new multimodal analgesic regimens have led to substantial improvement in postoperative pain relief. We designed this study to compare the effect of combined vitamin B complex-gabapentin versus gabapentin alone on postoperative pain in women undergoing cesarean section under spinal anesthesia.
  
  
  METHODS
  One hundred twenty-eight women who underwent cesarean section under spinal anesthesia were randomized to receive orally 300 mg gabapentin (group G) or 300 mg of gabapentin plus 2 vitamin B complex (group GB) tablets 30 minutes before surgery. Postoperative pain intensity and total analgesic consumption during 12 hours after surgery, vomiting, and drowsiness during recovery were assessed.
  
  
  RESULTS
  The pain intensity in the gabapentin plus vitamin B complex group was lower than gabapentin group during 12 hours after surgery (95% CI: 1.4-2.2; P < .001). Meanwhile, the total analgesic consumption in this group was less than gabapentin alone (95% CI: 1.07-1.24; P = 0.034). The incidence of vomiting in patients who receive combined gabapentin-vitamin B complex group was similar to gabapentin alone (P = .206). The difference of the distribution of the relative frequency of sedation according to Ramsay sedation scores in patients between 2 groups were insignificant (P = .82). All newborns in our study were free of any adverse effects.
  
  
  CONCLUSIONS
  Addition of vitamin B complex to gabapentin reduced intensity of postoperative pain and also the total amount of analgesic consumption within the first 12 hours postoperative following cesarean section.
authors.affiliation: Department of Anesthesiology, Faculty of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
authors.forename: Marzieh Beigom
authors.initials: MB
authors.lastname: Khezri
authors.forename: Nahid
authors.initials: N
authors.lastname: Nasseh
authors.forename: Ghodratollah
authors.initials: G
authors.lastname: Soltanian
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000588:Amines / Q000008:administration & dosage* / Q000009:adverse effects; D000700:Analgesics / Q000008:administration & dosage* / Q000009:adverse effects; D000775:Anesthesia, Spinal; D002585:Cesarean Section / Q000009:adverse effects* / Q000379:methods; D003509:Cyclohexanecarboxylic Acids / Q000008:administration & dosage* / Q000009:adverse effects; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D000077206:Gabapentin; D006801:Humans; D015994:Incidence; D010147:Pain Measurement; D010149:Postoperative Pain / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D020250:Postoperative Nausea and Vomiting / Q000139:chemically induced / Q000453:epidemiology; D011247:Pregnancy; D011300:Preoperative Care / Q000379:methods; D011446:Prospective Studies; D016896:Treatment Outcome; D014803:Vitamin B Complex / Q000008:administration & dosage*; D005680:gamma-Aminobutyric Acid / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D000588:Amines; D000700:Analgesics; D003509:Cyclohexanecarboxylic Acids; D014803:Vitamin B Complex; D005680:gamma-Aminobutyric Acid; D000077206:Gabapentin