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Query: UMLS:C0020672 (hypothermia)
 17,327 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Rectal temperature as well as unconditioned activity in an open-field (O-F) arena, and palpation-induced vocalization were examined in rats treated intraperitoneally with cannabinol (CBN, 17.5 or 56 mg/kg) and cannabidiol (CBD, 10 or 30 mg/kg), either singly or in combination. CBN singly resulted in hypothermia which was not attenuated by the addition of CBD. CBN reduced ambulation and rearing activities as compared to vehicle-treated rats. CBD in combination with CBN did not attenuate these effects; the CBD doses in themselves appeared inactive. Vocalization occurred to a significantly greater extent in the CBN singly-treated rats as compared to the controls and the CBD singly-treated rats. Thus, CBD did not counteract the temperature and open-field effects induced by CBN. This is discussed in relation to previous results from drug discrimination experiments.
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PMID:Cannabinol and cannabidiol in combination: temperature, open-field activity, and vocalization. 321 77

Objective: To determine the safety and tolerability of escalating doses of three cannabis oil formulations, containing predominantly CBD, THC, or CBD and THC (1.5:1) vs. placebo in dogs. Design: Randomized, placebo-controlled, blinded, parallel study. Animals: Twenty healthy Beagle dogs (10 males, 10 females). Methods: Dogs were randomly assigned to one of five treatment groups (n = 4 dogs per group balanced by sex): CBD-predominant oil, THC-predominant oil, CBD/THC-predominant oil (1.5:1), sunflower oil placebo, medium-chain triglyceride oil placebo. Up to 10 escalating doses of the oils were planned for administration via oral gavage, with at least 3 days separating doses. Clinical observations, physical examinations, complete blood counts, clinical chemistry, and plasma cannabinoids were used to assess safety, tolerability, and the occurrence of adverse events (AEs). AEs were rated as mild, moderate, or severe/medically significant. Results: Dose escalation of the CBD-predominant oil formulation was shown to be as safe as placebo and safer than dose escalation of oils containing THC (CBD/THC oil or THC oil). The placebo oils were delivered up to 10 escalating volumes, the CBD oil up to the tenth dose (640.5 mg; ~62 mg/kg), the THC oil up to the tenth dose (597.6 mg; ~49 mg/kg), and the CBD/THC oil up to the fifth dose (140.8/96.6 mg CBD/THC; ~12 mg/kg CBD + 8 mg/kg THC). AEs were reported in all dogs across the five groups and the majority (94.9%) were mild. Moderate AEs (4.4% of all AEs) and severe/medically significant AEs (0.8% of all AEs) manifested as constitutional (lethargy, hypothermia) or neurological (ataxia) symptoms and mainly occurred across the two groups receiving oils containing THC (CBD/THC oil or THC oil). Conclusions and clinical significance: Overall, dogs tolerated dose escalation of the CBD oil well, experiencing only mild AEs. The favorable safety profile of 10 escalating doses of a CBD oil containing 18.3-640.5 mg CBD per dose (~2-62 mg/kg) provides comparative evidence that, at our investigated doses, a CBD-predominant oil formulation was safer and more tolerated in dogs than oil formulations containing higher concentrations of THC.
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PMID:Preliminary Investigation of the Safety of Escalating Cannabinoid Doses in Healthy Dogs. 3211 71