FIELD: pharmacology.
SUBSTANCE: invention group is a nanoparticle for retroviral infection suppression, comprising at least one therapeutic agent and at least one surfactant, wherein the said nanoparticle is crystalline, wherein the said surfactant covers a crystal of the said therapeutic agent, wherein the said therapeutic agent is selected from the group consisting of atazanavir (ATV), efavirenz (EFV), indinavir (IDV) and ritonavir (RTV), wherein the said surfactant is an amphiphilic block copolymer, wherein the said nanoparticle is obtained by wet grinding or high pressure homogenization, and wherein the said nanoparticle contains at least 95% of a therapeutic agent; composition for retroviral infection suppression; method for HIV infection treatment or suppression.
EFFECT: invention provides steady drug delivery to the serum and tissue and improved antiviral efficacy relative to the equivalent dose of the free drug.
18 cl, 5 ex, 4 tbl, 25 dwg
