The purpose of the present invention is to provide a novel T-type calcium channel blocker. A compound represented by general formula (I), a tautomer or stereoisomer of the compound, a pharmaceutically acceptable salt thereof or a solvate of the same is used as a T-type calcium channel blocker. (In the formula: A represents optionally substituted phenyl, a 4-6 membered heteroaryl ring consisting of, as ring-constituting atoms, 1-3 heteroatoms, said heteroatoms being the same or different and selected from an oxygen atom, a sulfur atom and a nitrogen atom, and carbon atom(s), or a hetero fused ring consisting of the heteroaryl ring and a benzene ring or a 6-membered heteroaryl ring consisting of 1-2 nitrogen atoms and carbon atoms (wherein the heteroaryl ring and the hetero fused ring are optionally substituted) and is bonded to the nitrogen atom of the adjacent cyclic amine through a carbon atom constituting the ring； B represents optionally substituted phenyl, a 5- or 6-membered heteroaryl ring consisting of, as ring-constituting atoms, 1-3 heteroatoms, said heteroatoms being the same or different and selected from an oxygen atom, a sulfur atom and a nitrogen atom, and carbon atoms, or a hetero fused ring consisting of the heteroaryl ring and a benzene ring or a 6-membered heteroaryl ring consisting of 1-2 nitrogen atoms and carbon atoms (wherein the heteroaryl ring and the hetero fused ring are optionally substituted) and is bonded to the adjacent cyclopropyl ring through a carbon atom constituting the ring； R1 and R2 may be either the same or different and represent a hydrogen atom, a halogen atom, etc.； R3 represents a hydrogen atom, a halogen atom, etc.； n and m may be either the same or different and represent 0 or 1； and p represents 1 or 2.)L'objet de la présente invention est de fournir un nouveau inhibiteur du canal calcique de type T. L'invention concerne un composé représenté par la formule générale (I), un tautomère ou un stéréoisomère du composé, un sel
