3Gotrick B, Tobin G. The xerogenic potency and mecha- nism of action of tramadol inhibition of salivary secre- tion in rats[J]. Arch Oral Biol,2004,49(12):969-973.
4De Decker K, Cordonnier J, Jacobs W, et al. Fatal in- toxication due to tramadol alone: case report and review of the literature[J]. Forensic Sci Int,2008,175 (1) :79- 82.
5Hedner J, Hedner T, Jonason J. Capsaicin and regu- lation of respiration: interaction with central substance P mechanisms[J]. J Neural Transm, 1985,61 (3-4):239- 252.
6Haji A, Takeda R, Remmers JE. Evidence that glycine and GABA mediate postsynaptic inhibition of bulbar respiratory neurons in the cat[J]. J Appl Physiol,1992, 73 (6) : 2333 -2342.
7Yamada KA, Hamosh P, Gillis RA. Respiratory de- pression produced by activation of GABA receptors in hindbrain of cat[J]. J Appl Physiol,1981,51(5):1278- 1286.
8Taveira da Silva AM, Hartley B, Hamosh P, et al. Respiratory depressant effects of GABA alpha-and be- ta-receptor agonists in the cat[J]. J Appl Physiol, 1987, 62 (6) : 2264-2272.
9Hedner J, Hedner T, Jonason J, et al. GABA-ergic mechanisms in central respiratory control in the anes- thetized rat[J]. Naunyn Schmiedebergs Arch Pharmacol, 1981,317(4) :315-320.
10Musshoff F, Madea B. Fatality due to ingestion of tra- madol alone[J]. Forensic Sci Int,2001,116(2-3) : 197- 199.
