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Papers of the Week

2020 Aug 26

Animals (Basel)



Oral Transmucosal Cannabidiol Oil Formulation as Part of a Multimodal Analgesic Regimen: Effects on Pain Relief and Quality of Life Improvement in Dogs Affected by Spontaneous Osteoarthritis.


Brioschi F A, Di Cesare F, Gioeni D, Rabbogliatti V, Ferrari F, D'Urso E S, Amari M, Ravasio G
Animals (Basel). 2020 Aug 26; 10(9).
PMID: 32858828.


The aim of this study was to evaluate the efficacy of oral transmucosal (OTM) cannabidiol (CBD), in addition to a multimodal pharmacological treatment for chronic osteoarthritis-related pain in dogs. Twenty-one dogs were randomly divided into two groups: in group CBD ( = 9), OTM CBD (2 mg kg every 12 h) was included in the therapeutic protocol (anti-inflammatory drug, gabapentin, amitriptyline), while in group C ( = 12), CBD was not administered. Dogs were evaluated by owners based on the Canine Brief Pain Inventory scoring system before treatment initiation (T0), and one (T1), two (T2), four (T3) and twelve (T4) weeks thereafter. Pain Severity Score was significantly lower in CBD than in C group at T1 ( = 0.0002), T2 ( = 0.0043) and T3 ( = 0.016). Pain Interference Score was significantly lower in CBD than in C group at T1 ( = 0.0002), T2 ( = 0.0007) and T4 ( = 0.004). Quality of Life Index was significantly higher in CBD group at T1 ( = 0.003). The addition of OTM CBD showed promising results. Further pharmacokinetics and long-term studies in larger populations are needed to encourage its inclusion into a multimodal pharmacological approach for canine osteoarthritis-related pain.