Evaluation of tilidine for morphine-like subjective effects and euphoria
by
Jasinski DR, Preston KL
Drug Alcohol Depend 1986 Nov; 18(3):273-92


ABSTRACT

Tilidine is an opioid analgesic that has been abused predominantly by the oral route. Studies of parenterally administered tilidine in animals did not clearly indicate a dependence potential of the morphine type. In this study we examined the abuse potential of orally and parenterally administered tilidine in humans. Both orally and intramuscularly given tilidine produced miosis and morphine-like subjective effects in non-dependent subjects. Oral tilidine was 1/8-1/10 as potent and intramuscular tilidine was 1/22 as potent as parenteral morphine in producing morphine-like subjective and miotic effects. Intramuscular tilidine suppressed and did not precipitate signs of abstinence in morphine-dependent subjects. However, intramuscularly given tilidine produced toxic effects not seen with morphine. Meperidine, codeine and d-propoxyphene produced morphine-like subjective and miotic effects, but also produced toxic effects at the highest doses tested. The results suggest that tilidine has a potential to be abused, that this potential is less than that of parenteral morphine and that tilidine is more likely to be abused orally than by the intramuscular route.
Pain
Fentanyl
Tramadol
Tolerance
Nociceptin
Endomorphins
Pharmacokinetics
Tilidine metabolites
Tilidine (Valeron) : structure


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