A adverse test result for VDRL and TPHA together at four months is ok to rule out syphilis. HCV is just not transmitted sexually. HBsAg negativity is fine at this time. Your medications wouldn't have interfered with test success. I might only want you to repeat an ELISA for HSV https://hivtestconclusive71357.blogdigy.com/hiv-test-conclusive-fundamentals-explained-56706058