Abstract: A crystal of ethane disulfonate of (S)-1-(4-(dimethylamino)piperidin-1-yl)-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)propan-1-one, having peaks at diffraction angles 2?)(° of 12.6±0.2, 16.0±0.2, 17.7±0.2, 18.5±0.2, and 21.3±0.2 in powder X-ray diffraction; and the crystal of ethane disulfonate of (S)-1-(4-(dimethylamino)piperi din-1-yl)-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)propan-1-one, having an endothermic peak at 173° C. to 177° C. in simultaneous thermogravimetric-differential thermal analysis.

Abstract: A crystal of ethane disulfonate of (S)-1-(4-(dimethylamino)piperidin-1-yl)-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)propan-1-one, having peaks at diffraction angles 2? (°) of 12.6±0.2, 16.0±0.2, 17.7±0.2, 18.5±0.2, and 21.3±0.2 in powder X-ray diffraction; and the crystal of ethane disulfonate of (S)-1-(4-(dimethylamino)piperidin-1-yl)-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)propan-1-one, having an endothermic peak at 173° C. to 177° C. in simultaneous thermogravimetric-differential thermal analysis.

Abstract: Crystals of a compound that exhibits an analgesic action against neuropathic pain and/or fibromyalgia syndrome are useful as pharmaceuticals. The crystals may be of (S)-1-(4-(dimethylamino)piperidin-1-yl)-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)propan-1-one or a pharmacologically acceptable salt thereof.

Abstract: Crystals of a compound that exhibits an analgesic action against neuropathic pain and/or fibromyalgia syndrome are useful as pharmaceuticals. The crystals may be of (S)-1-(4-(dimethylamino)piperidin-1-yl)-3-hydroxy-3-(1-methyl-1H-imidazol-2-yl)propan-1-one or a pharmacologically acceptable salt thereof.

Abstract: A method of treating or preventing peripheral neuropathies includes administering a therapeutically effective amount of a cyclic amine derivative represented by general formula (I) or a pharmacologically acceptable salt thereof to a patient who needs treatment wherein, carbon marked with * is asymmetric carbon; and A represents a group represented by general formulae (IIa), (IIb) or (IIc): wherein R1 represents a methyl group or an ethyl group optionally substituted with a halogen atom, R2 represents a hydrogen atom or an alkylcarbonyl group having 2 to 5 carbon atoms, each R3 independently represents a methyl group or an ethyl group, and n represents 1 or 2.

Abstract: A cyclic amine derivative represented by a general formula (I) or a pharmacologically acceptable salt thereof: wherein n represents 1 or 3, R1 represents an alkyl group having 1 to 6 carbon atoms unsubstituted, substituted with a halogen atom or substituted with an alkyloxy group having 1 to 4 carbon atoms and R2 represents a hydrogen atom or a halogen atom.

Abstract: A compound exerts an analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by the following general formula, or a pharmacologically acceptable salt thereof: Methods using the compound including the cyclic amine derivative or a pharmacologically acceptable salt thereof to treat pain, neuropathic pain and fibromyalgia syndrome.

Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by general formula or a pharmacologically acceptable salt thereof: A method of treating neuropathic pain includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal. A method of treating fibromyalgia syndrome includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal.

Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by general formula or a pharmacologically acceptable salt thereof A method of treating neuropathic pain includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal. A method of treating fibromyalgia syndrome includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal.

Abstract: A cyclic amine derivative represented by a general formula (I) or a pharmacologically acceptable salt thereof: wherein n represents 1 or 3, R1 represents an alkyl group having 1 to 6 carbon atoms unsubstituted, substituted with a halogen atom or substituted with an alkyloxy group having 1 to 4 carbon atoms and R2 represents a hydrogen atom or a halogen atom.

Abstract: A compound exerts an analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by the following general formula, or a pharmacologically acceptable salt thereof: Methods using the compound including the cyclic amine derivative or a pharmacologically acceptable salt thereof to treat pain, neuropathic pain and fibromyalgia syndrome.

Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. The cyclic amine derivative is represented by formula, a prodrug thereof or a pharmacologically acceptable salt thereof: wherein A represents a group represented by Formula (IIa), (IIb) or (IIc): wherein R3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R4 represents a hydrogen atom or an alkylcarbonyl group having 2 to 6 carbon atoms or an alkyl group having 1 to 6 carbon atoms and optionally substituted with an alkylcarbonylamino group having 2 to 6 carbon atoms and n represents 1 or 2, in which when R3 and R4 each independently represent an alkyl group having 1 to 6 carbon atoms, R1 represents an alkyl group having 1 to 6 carbon atoms and substituted with a hydroxyl group, an amino group or a carboxyl group.

Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. The cyclic amine derivative is represented by formula, a prodrug thereof or a pharmacologically acceptable salt thereof: wherein A represents a group represented by Formula (IIa), (IIb) or (IIc): wherein R3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R4 represents a hydrogen atom or an alkylcarbonyl group having 2 to 6 carbon atoms or an alkyl group having 1 to 6 carbon atoms and optionally substituted with an alkylcarbonylamino group having 2 to 6 carbon atoms and n represents 1 or 2, in which when R3 and R4 each independently represent an alkyl group having 1 to 6 carbon atoms, R1 represents an alkyl group having 1 to 6 carbon atoms and substituted with a hydroxyl group, an amino group or a carboxyl group.

Abstract: A method treats or prevents neuropathic pain with a synergistically-enhanced analgesic effect at a dose at which a calcium channel ?2? ligand does not produce any side effects as well as which agent does not produce any new side effects on the central nervous system. The therapeutic agent or a prophylactic agent used in the method includes as effective ingredients a cyclohexane derivative or a pharmaceutically acceptable salt thereof or a prodrug thereof, and a calcium channel ?2? ligand.

Abstract: A method treats or prevents neuropathic pain with a synergistically-enhanced analgesic effect at a dose at which a calcium channel ?2? ligand does not produce any side effects as well as which agent does not produce any new side effects on the central nervous system. The therapeutic agent or a prophylactic agent used in the method includes as effective ingredients a cyclohexane derivative or a pharmaceutically acceptable salt thereof or a prodrug thereof, and a calcium channel ?2? ligand.

Abstract: A therapeutic agent or a prophylactic agent for neuropathic pain provides a synergistically-enhanced analgesic effect at a dose at which a calcium channel ?2? ligand does not produce any side effects as well as which agent does not produce any new side effects on the central nervous system. The therapeutic agent or a prophylactic agent for neuropathic pain includes as effective ingredients a cyclohexane derivative, represented by the following formula, or a pharmaceutically acceptable salt thereof or a prodrug thereof, and a calcium channel ?2? ligand.

Abstract: An analgesic which may be applied to wide variety of pain from various causes is disclosed.

Abstract: A therapeutic agent or a prophylactic agent for neuropathic pain provides a synergistically-enhanced analgesic effect at a dose at which a calcium channel ?2? ligand does not produce any side effects as well as which agent does not produce any new side effects on the central nervous system. The therapeutic agent or a prophylactic agent for neuropathic pain includes as effective ingredients a cyclohexane derivative, represented by the following formula, or a pharmaceutically acceptable salt thereof or a prodrug thereof, and a calcium channel ?2? ligand.

Abstract: A method relieves both nociceptive pain and neuropathic pain and has fewer side effects. The compound includes cyclohexane derivatives represented by the following compound, or pharmaceutically acceptable salts thereof or prodrugs thereof.

Abstract: A method relieves both nociceptive pain and neuropathic pain and has fewer side effects. The compound includes cyclohexane derivatives represented by the following compound, or pharmaceutically acceptable salts thereof or prodrugs thereof.