Answer
Efavirenz/emtricitabine/tenofovir disoproxil maleate must not be taken with St John's wort because it risks decreasing efavirenz plasma concentrations and reducing its clinical effects.
Sources for this answer
- Efavirenz/Emtricitabine/Tenofovir Disoproxil Mylan 600 mg/200 mg/245 mg Film-coated TabletsViatris (formerly Mylan or Upjohn) · emc · SmPC §4.3 Contraindications · Version 16Document updated
Sources checked