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Case Reports
. 2011 Jul;1(1):10-4.
doi: 10.5812/kowsar.22287523.1336. Epub 2011 Jul 1.

Comparison of the efficacy of adding clonidine, chlorpromazine, promethazine, and midazolam to morphine pumps in postoperative pain control of addicted patients

Farnad Imani  1 , Poupak Rahimzadeh  1 , Seyyed Hamid Reza Faiz  2
Affiliations
Case Reports

Comparison of the efficacy of adding clonidine, chlorpromazine, promethazine, and midazolam to morphine pumps in postoperative pain control of addicted patients

Farnad Imani et al. Anesth Pain Med. 2011 Jul.

Abstract

Background: Addicted patients present difficulties for pain management because they have another problem besides their pain. Adding adjuvants to opioid pumps to intensify quality, control other problems, lengthen analgesia, and reduce side effects has been considered in the field.

Objectives: The objective of this study was to evaluate the analgesic effects of adding clonidine, promethazine, chlorpromazine, and midazolam to morphine in patient-controlled intravenous analgesia (PCIA) in orthopedic patients with addiction problems.

Patients and methods: 90 patients with histories of substance abuse were enrolled in this randomized controlled trial. Patients were randomly divided into three groups. The first group received 20 mg of morphine sulfate +50 mg of chlorpromazine + 50 mg of promethazine +10 mg of midazolam (M20P). The second group received the first group's regimen plus 150 micrograms of clonidine (M20PC). The third group received 40 mg of morphine sulfate (M40). A pump with a flow rate of 5 mL/h was chosen. Patients were evaluated every 12 hours, and VAS, VRS, extra opioid usage, nausea and vomiting, and sedation scores were recorded.

Results: Patients' nausea and vomiting and sedation scores were not statistically different between the three groups. Mean VAS and VRS scores were found to be statistically lower in the M20PC group than in the other groups. Extra opioid usage between the three groups was statistically lower in the M20PC group than in the other groups. The percentage of patients satisfaction was significantly higher in the M20PC group than in the other two groups.

Conclusions: This study showed that, compared to simply increasing the dose of morphine, adding chloropromazine, promethazine, midazolam, and clinidine to morphine significantly controlled pain scores and increased treatment satisfaction in addicted patients without notable side effects.

Keywords: Addictive Behavior; Chlorpromazine; Clonidine; Morphine; Patient-controlled Analgesia.

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Conflict of interest statement

Conflict of interest:None declared.

References

    1. Mehta V, Langford RM. Acute pain management for opioid dependent patients. Anaesthesia. 2006;61(3):269–76. doi: 10.1111/j.1365-2044.2005.04503.x. - DOI - PubMed
    1. Sykes J, Johnson R, Hanks GW. ABC of palliative care. Difficult pain problems. Bmj. 1997;315(7112):867–9. - PMC - PubMed
    1. Morgan JP. American opiophobia: customary underutilization of opioid analgesics. Adv Alcohol Subst Abuse. 1985;5(1-2):163–73. doi: 10.1300/J251v05n01_11. - DOI - PubMed
    1. Marks RM, Sachar EJ. Undertreatment of medical inpatients with narcotic analgesics. Ann Intern Med. 1973;78(2):173–81. - PubMed
    1. Shine D, Demas P. Knowledge of medical students, residents, and attending physicians about opiate abuse. J Med Educ. 1984;59(6):501–7. - PubMed

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