Hydroxychloroquine (Plaquenil) is an anti-malarial medication used for a variety of inflammatory diseases including systemic lupus erythematosus as well as rheumatoid arthritis and Sjogren's Syndrome. Hydroxychloroquine is contraindicated for Marshall Protocol patients for several reasons.
There are several reasons why use of hydroxychloroquine is advised against.
Plaquenil lingers in the system at least 50 days and cannot be taken while on the MP. Dr. Blaney reports he starts his patients on Benicar while they are waiting for Plaquenil to clear their system and has seen no adverse events. He prefers to wait a couple months before starting minocycline.
Trevor Marshall, PhD