Abstract: The present invention enables treatment and/or prevention of dementia, cognitive impairment, and vascular depression by a combination of aripiprazole and cilostazol, or the like. The combination contains aripiprazole and cilostazol, and is used for the treatment and/or prevention of at least one member selected from the group consisting of dementia, cognitive impairment, and vascular depression.

Abstract: A new PTEN opener or a new opener of a large conductance Ca2+-activated K+ channel (Maxi-K channel) which comprises as an active ingredient a tetrazolylalkoxy-dihydrocarbostyril compound of the formula (I): wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of the carbostyril nucleus is single bond or double bond, or a salt thereof, which is useful as a medicament for promotion of the survival of normal cells, brain cells, heart cells, and skin, and further for inhibiting of Gram negative sepsis and cell migration and cell invasion due to inhibition of PTEN and is further useful as a medicament for the treatment of neuronal disorders, for example, an anticonvulsant, a neuroprotecting agent, a medicament for treatment of regional cerebral edema and neurologic motor impairment, cognitive disorders, traumatic brain injury, Parkinson's disease, epilepsy, migraine, and Alzheimer's disease, etc.

Abstract: This invention relates to a combination drug comprising a combination of a tetrazolylalkoxy-dihydrocarbostyril derivative of the formula: wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of carbostyril nucleus is single bond or double bond, or a salt thereof and Probucol, which is useful for preventing and treating cerebral infarction including acute cerebral infarction and chronic cerebral infarction, arteriosclerosis, renal diseases (e.g. diabetic nephropathy, renal failure, nephritis), and diabetes owing to synergistic superoxide suppressant effects of the combination.

Abstract: This invention relates to a combination drug comprising a combination of a tetrazolylalkoxy-dihydrocarbostyril derivative of the formula: wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of carbostyril nucleus is single bond or double bond, or a salt thereof and Probucol, which is useful for preventing and treating cerebral infarction including acute cerebral infarction and chronic cerebral infarction, arteriosclerosis, renal diseases (e.g. diabetic nephropathy, renal failure, nephritis), and diabetes owing to synergistic superoxide suppressant effects of the combination.

Abstract: A new PTEN opener or a new opener of a large conductance Ca2+-activated K+ channel (Maxi-K channel) which comprises as an active ingredient a tetrazolylalkoxy-dihydrocarbostyril compound of the formula (I): wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of the carbostyril nucleus is single bond or double bond, or a salt thereof, which is useful as a medicament for promotion of the survival of normal cells, brain cells, heart cells, and skin, and further for inhibiting of Gram negative sepsis and cell migration and cell invasion due to inhibition of PTEN and is further useful as a medicament for the treatment of neuronal disorders, for example, an anticonvulsant, a neuroprotecting agent, a medicament for treatment of regional cerebral edema and neurologic motor impairment, cognitive disorders, traumatic brain injury, Parkinson's disease, epilepsy, migraine, and Alzheimer's disease, etc.

Abstract: A new PTEN opener or a new opener of a large conductance Ca2+-activated K+ channel (Maxi-K channel) which comprises as an active ingredient a tetrazolylalkoxy-dihydrocarbostyril compound of the formula (I): wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of the carbostyril nucleus is single bond or double bond, or a salt thereof, which is useful as a medicament for promotion of the survival of normal cells, brain cells, heart cells, and skin, and further for inhibiting of Gram negative sepsis and cell migration and cell invasion due to inhibition of PTEN and is further useful as a medicament for the treatment of neuronal disorders, for example, an anticonvulsant, a neuroprotecting agent, a medicament for treatment of regional cerebral edema and neurologic motor impairment, cognitive disorders, traumatic brain injury, Parkinson's disease, epilepsy, migraine, and Alzheimer's disease, etc.

Abstract: A new PTEN opener or a new opener of a large conductance Ca2+-activated K+ channel (Maxi-K channel) which comprises as an active ingredient a tetrazolylalkoxy-dihydrocarbostyril compound of the formula (I): wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of the carbostyril nucleus is single bond or double bond, or a salt thereof, which is useful as a medicament for promotion of the survival of normal cells, brain cells, heart cells, and skin, and further for inhibiting of Gram negative sepsis and cell migration and cell invasion due to inhibition of PTEN and is further useful as a medicament for the treatment of neuronal disorders, for example, an anticonvulsant, a neuroprotecting agent, a medicament for treatment of regional cerebral edema and neurologic motor impairment, cognitive disorders, traumatic brain injury, Parkinson's disease, epilepsy, migraine, and Alzheimer's disease, etc.

Abstract: This invention relates to a combination drug comprising a combination of a tetrazolylalkoxy-dihydrocarbostyril derivative of the formula: wherein R is cycloalkyl, A is lower alkylene, and the bond between 3- and 4-positions of carbostyril nucleus is single bond or double bond, or a salt thereof and Probucol, which is useful for preventing and treating cerebral infarction including acute cerebral infarction and chronic cerebral infarction, arteriosclerosis, renal diseases (e.g. diabetic nephropathy, renal failure, nephritis), and diabetes owing to synergistic superoxide suppressant effects of the combination.

Abstract: A new active oxygen scavenger which comprises as an active ingredient a tetrazolylalkoxy-dihydrocarbostyril compound of the formula (I): wherein R is cycloalkyl group, A is lower alkylene group, and the bond between 3- and 4-positions of the carbostyril nucleus is single bond or double bond, or a salt thereof, and an agent for the prevention or treatment of an acute cerebral infarction comprising the same active ingredient.

Abstract: A new active oxygen scavenger which comprises as an active ingredient a tetrazolylalkoxy-dihydrocarbostyril compound of the formula (I): 1