Benzodiazepines are effective adjuncts of acute pain because of their anxiolytic and muscle relaxant properties, but don’t have analgesic effects and cause dependence, addiction and tolerance. 
The prospective 2014-2018 study was intended to evaluate suspend benzodiazepine guideline effects.
41 women and 26 men with chronic pain without lesion aged 28-60 treated with benzodiazepine for more than 6 months which accepted to discontinue treatment.
Simple randomized patients assigned to receive 3 different kinds of treatment. Patients continued to receive unchanged treatment for pain.
Group I – 13 women, 10 men – medication was immediately discontinued. 8-12 weeks.  
Group II – 15 women, 7 men – replacement by another with half-life superior, with equivalence adjustment. Dose was decreased to 50% every week (8-12 weeks). When withdrawal symptoms persist, the drug was discontinued slower. 6-8 months.
Group III – 13 women, 9 men – Benzodiazepine was discontinued (1/4 tablet, month), replaced by chlorpromazine 25 mg (1/4 tablet, month, 3 years).
RESULTS:
Group I – 1 woman hit the target. 
Group II – 9 women, 2 men hit the target. 
Group III – 11 women, 4 men hit the target. 
CONCLUSIONS:
Group III got the best result, regardless of the time of benzodiazepine use.

BENZODIAZEPINES: ADJUNCTS FOR PAIN TREATMENT?