FIELD : medicine. SUBSTANCE : invention relates to medicine, in particular to a therapeutic and/or preventive agent for acute and/or chronic pain. Said therapeutic and/or preventive agent contains, as its active agent, a compound based on 1-indansulfamide selected from the group : N-[(1S)-2, 2, 5, 7-tetrafluoro-2, 3-dihydro-1H-indene-1-yl]sulfamide, (-)-N-(7-chloro-2, 2, 5-trifluoro-2, 3-dihydro-1H-indene-1-yl)sulfamide, N-[(1S)-2, 2-difluoro-7-methyl-2, 3-dihydro-1H-indene-1-yl]sulfamide N-[(1S)-2, 2, 5-trifluoro-7-methyl-2, 3-dihydro-1H-indene-1-yl]sulfamide, or its pharmaceutically acceptable salt. EFFECT : use of the invention provides an analgesic effect in various animal models and may be used for various types of pain. 5 cl, 10 tbl, 9 ex, 2 dwg