Figure 2: (A) DSC overlay spectra of Efavirenz-EFAV, Lactic acid-LA 99, physical mixture of Lactic acid and formulation of Efavirenz co-crystal with Lactic acid co-former-COLA (1:5). (B) DSC overlay spectra of Efavirenz-EFAV, Adipic acid-AD 26, physical mixture of Adipic acid and Efavirenz-EFAAA and formulation of Efavirenz co-crystal with Adipic acid co-former-COAA (1:5).