rats and flying squirrels, guinea pigs, ferrets, and raccoons. See also Tramadol/paracetamol References Further reading External links 5-HT2C antagonists Analgesics Cyclohexanols Dimethylamino compounds Euphoriants Mu-opioid receptor agonists Muscarinic antagonists Nicotinic antagonists NMDA receptor antagonists Phenol ethers Racemic mixtures Serotonin–norepinephrine reuptake inhibitors Wikipedia medicine articles ready to translate German inventions