(February 4, 2022) Latest Update on COVID-19 Vaccines and Scientific Leaders’ Perspectives on When Can We Be “Normal” and Are We at a Pandemic Inflection Point?

A. Doxycycline should not be given with ritonavir-boosted HIV protease inhibitors

B. Doxycycline may protect against mpox

C. Doxycycline should not be given with tenofovir-containing HIV preexposure prophylaxis

D. Doxycycline should not be taken at the same time as bivalent-containing antacids, multivitamins, or calcium supplements

E. Doxycycline should not be taken with acid-blocking medications like proton-pump inhibitors and histamine-2 blockers