The increase in the proportion of comorbid forms of socially significant infections, in particular the combination of tuberculosis with HIV infection and chronic viral hepatitis, is a pressing problem, including of a therapeutic nature: on the one hand, the combined use of anti-tuberculosis and antiretroviral therapy creates an additional burden on the liver; on the other hand, the situation is aggravated by specific disorders of its function associated with the presence of a chronic viral infection, most often hepatitis C and B. In this regard, the inclusion of drugs with hepatoprotective properties in the treatment regimens for this pathology is advisable. The article presents a clinical observation of the effectiveness of remaxol inclusion in the treatment regimen of a patient with disseminated pulmonary tuberculosis, comorbid with HIV infection and chronic hepatitis C with signs of a hepatotoxic reaction to the etiotropic therapy (the main course of treatment). The drug was administered according to the scheme: 400.0 ml intravenously by drip every other day No. 5, then 400.0 intravenously by drip once a week No. 4. The treatment with remaxol contributed to the relief of clinical and laboratory signs of drug-induced liver damage, which in turn made it possible not to interrupt the course of etiotropic therapy, while the improvement of the general condition of the patient increased his adherence to the treatment. The obtained results allow us to continue research in this direction.