Abnormal weight gain and gut microbiota modifications are side effects of long-term doxycycline and hydroxychloroquine treatment
Antimicrobial Agents and Chemotherapy (2014) - Comments
pubmed: 24687497  doi: 10.1128/aac.02437-14  issn: 0066-4804  issn: 1098-6596 

Emmanouil Angelakis, Matthieu Million, Sallah Kankoe, Jean-Christophe Lagier, Fabrice Armougom, Roch Giorgi, Didier Raoult