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The article describes the results of the experiment aimed to find out the nature of changes in the excitability of the auditory cortex during prolonged taking of antibiotics, aminoglycosides, diuretics and salicylates. Methodology. The series of experiments was carried out on cats of both sexes weighing 3-3.5 kg, in natural behaviour. Rectangular threshold (1.5-3 V) and supra-threshold (5-7 V) electrical impulses lasting 0.1 ms were applied to the TCR fibres, using single and paired (interstimular intervals of 20-500ms) stimulation of the TCR fibres. As a source of irritating impulses, a multi-channel stimulator "SEN-3201" of the company "Nikon-Kohden" (Japan) was used. For each skeletal interval was carried out on 10 repetitions. The SOFTWARE was registered using the average Det-1100 average from Nikon-Kohden (Japan). The resulting visual control was performed from the screen of the "Disa-Indicator" oscilloscope (Denmark). The maximum level of the intensity value reached 110 dB. Sound signals were transmitted through special highfrequency phones (or speakers) of the GD-4 type, which were in a free state, at a distance of 10 cm from the ear of the test ear. All the studied pharmaceuticals (furosemide, streptomycin, gentamicin, kanamycin, monomycin, tobramycin and amikacin) except acetylsalicylic acid, which was injected intraperitoneally, were administered to cats intramuscularly 2 times a day at intervals of 10-12 hours. Bioelectric reactions of the cortex and cochlea were recorded daily 2-3 hours after the next administration of drugs. Streptomycin, kanamycin and monomycin were used at a dose of 40 mg / kg, which causes inhibition of the cochlea's MIC response (MOI) and auditory nerve PD only with long-term use. Gentamicin, tobramycin and amikacin were administered in a lower (15 mg/kg) dose. Results. Furosemide reduced by 50% the value of the microphone potential recorded during sound stimulation with a frequency of 10 kHz after 4 days, with a frequency of 1 kHz

The article describes the results of the experiment aimed to find out the nature of changes in the excitability of the auditory cortex during prolonged taking of antibiotics, aminoglycosides, diuretics and salicylates. Methodology. The series of experiments was carried out on cats of both sexes weighing 3-3.5 kg, in natural behaviour. Rectangular threshold (1.5-3 V) and supra-threshold (5-7 V) electrical impulses lasting 0.1 ms were applied to the TCR fibres, using single and paired (interstimular intervals of 20-500ms) stimulation of the TCR fibres. As a source of irritating impulses, a multi-channel stimulator "SEN-3201" of the company "Nikon-Kohden" (Japan) was used. For each skeletal interval was carried out on 10 repetitions. The SOFTWARE was registered using the average Det-1100 average from Nikon-Kohden (Japan). The resulting visual control was performed from the screen of the "Disa-Indicator" oscilloscope (Denmark). The maximum level of the intensity value reached 110 dB. Sound signals were transmitted through special highfrequency phones (or speakers) of the GD-4 type, which were in a free state, at a distance of 10 cm from the ear of the test ear. All the studied pharmaceuticals (furosemide, streptomycin, gentamicin, kanamycin, monomycin, tobramycin and amikacin) except acetylsalicylic acid, which was injected intraperitoneally, were administered to cats intramuscularly 2 times a day at intervals of 10-12 hours. Bioelectric reactions of the cortex and cochlea were recorded daily 2-3 hours after the next administration of drugs. Streptomycin, kanamycin and monomycin were used at a dose of 40 mg / kg, which causes inhibition of the cochlea's MIC response (MOI) and auditory nerve PD only with long-term use. Gentamicin, tobramycin and amikacin were administered in a lower (15 mg/kg) dose. Results. Furosemide reduced by 50% the value of the microphone potential recorded during sound stimulation with a frequency of 10 kHz after 4 days, with a frequency of 1 kHz

The article describes the results of the experiment aimed to find out the nature of changes in the excitability of the auditory cortex during prolonged taking of antibiotics, aminoglycosides, diuretics and salicylates. Methodology. The series of experiments was carried out on cats of both sexes weighing 3-3.5 kg, in natural behaviour. Rectangular threshold (1.5-3 V) and supra-threshold (5-7 V) electrical impulses lasting 0.1 ms were applied to the TCR fibres, using single and paired (interstimular intervals of 20-500ms) stimulation of the TCR fibres. As a source of irritating impulses, a multi-channel stimulator "SEN-3201" of the company "Nikon-Kohden" (Japan) was used. For each skeletal interval was carried out on 10 repetitions. The SOFTWARE was registered using the average Det-1100 average from Nikon-Kohden (Japan). The resulting visual control was performed from the screen of the "Disa-Indicator" oscilloscope (Denmark). The maximum level of the intensity value reached 110 dB. Sound signals were transmitted through special highfrequency phones (or speakers) of the GD-4 type, which were in a free state, at a distance of 10 cm from the ear of the test ear. All the studied pharmaceuticals (furosemide, streptomycin, gentamicin, kanamycin, monomycin, tobramycin and amikacin) except acetylsalicylic acid, which was injected intraperitoneally, were administered to cats intramuscularly 2 times a day at intervals of 10-12 hours. Bioelectric reactions of the cortex and cochlea were recorded daily 2-3 hours after the next administration of drugs. Streptomycin, kanamycin and monomycin were used at a dose of 40 mg / kg, which causes inhibition of the cochlea's MIC response (MOI) and auditory nerve PD only with long-term use. Gentamicin, tobramycin and amikacin were administered in a lower (15 mg/kg) dose. Results. Furosemide reduced by 50% the value of the microphone potential recorded during sound stimulation with a frequency of 10 kHz after 4 days, with a frequency of 1 kHz

The article describes the results of the experiment aimed to find out the nature of changes in the excitability of the auditory cortex during prolonged taking of antibiotics, aminoglycosides, diuretics and salicylates. Methodology. The series of experiments was carried out on cats of both sexes weighing 3-3.5 kg, in natural behaviour. Rectangular threshold (1.5-3 V) and supra-threshold (5-7 V) electrical impulses lasting 0.1 ms were applied to the TCR fibres, using single and paired (interstimular intervals of 20-500ms) stimulation of the TCR fibres. As a source of irritating impulses, a multi-channel stimulator "SEN-3201" of the company "Nikon-Kohden" (Japan) was used. For each skeletal interval was carried out on 10 repetitions. The SOFTWARE was registered using the average Det-1100 average from Nikon-Kohden (Japan). The resulting visual control was performed from the screen of the "Disa-Indicator" oscilloscope (Denmark). The maximum level of the intensity value reached 110 dB. Sound signals were transmitted through special highfrequency phones (or speakers) of the GD-4 type, which were in a free state, at a distance of 10 cm from the ear of the test ear. All the studied pharmaceuticals (furosemide, streptomycin, gentamicin, kanamycin, monomycin, tobramycin and amikacin) except acetylsalicylic acid, which was injected intraperitoneally, were administered to cats intramuscularly 2 times a day at intervals of 10-12 hours. Bioelectric reactions of the cortex and cochlea were recorded daily 2-3 hours after the next administration of drugs. Streptomycin, kanamycin and monomycin were used at a dose of 40 mg / kg, which causes inhibition of the cochlea's MIC response (MOI) and auditory nerve PD only with long-term use. Gentamicin, tobramycin and amikacin were administered in a lower (15 mg/kg) dose. Results. Furosemide reduced by 50% the value of the microphone potential recorded during sound stimulation with a frequency of 10 kHz after 4 days, with a frequency of 1 kHz