Plaquenil (hydroxychloroquine): is an effective but VERY POWERFUL drug and patients NEED CLOSE FOLLOW-UP including certain blood tests by the Prescribing Health Care Professional! IT IS HE/SHE who will require the number and frequency of these follow-up visits! This is to AVOID or DETECT EARLY unwelcome effects of the drug! Hope this helps! Dr Z
Answered 10/12/2016
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