One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine (Plaquenil), a chloroquine derivative. It is used to treat many diseases including malaria, rheumatoid arthritis and systemic lupus erythematosus. Hydroxychloroquine clinical trial Chloroquine pka Hydroxychloroquine for rheumatoid arthritis and other rheumatological diseases Adults It is vital for safe and appropriate patient care that there is a clear understanding of where clinical and prescribing responsibility rests between Consultants and General Practitioners GPs. In conclusion, monitoring hydroxychloroquine levels represents an important opportunity to improve medication adherence in patients with SLE. Serial monitoring and dedicated follow up with clinical counseling improved medication adherence. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Important information. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Plaquenil monitoring PLAQUENIL MONITORING — Ocean Opthalmology, Hydroxychloroquine Blood Levels in SLE Clarifying dosing. Hydroxychloroquine pustular rashPlaquenil and reduced renal functionCalcium autophagy chloroquine Z79.899 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2020 edition of ICD-10-CM Z79.899 became effective on October 1, 2019. This is the American ICD-10-CM version of Z79.899 - other international versions of ICD-10 Z79.899 may differ. ICD-10-CM Diagnosis Code Z79.899 Other long term.. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine-Induced Retinal Toxicity - American.. Take Plaquenil hydroxychloroquine with food or milk. Swallow whole. Do not chew, break, or crush. Keep taking Plaquenil hydroxychloroquine as you have been told by your doctor or other health care provider, even if you feel well. Do not take antacids or kaolin within 4 hours of Plaquenil hydroxychloroquine. What do I do if I miss a dose? Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. Plaquenil Dosage Malaria. Adults 400 mg 310 mg base once weekly on the same day of each week starting 2 weeks prior. Lupus Erythematosus. The recommended adult dosage is 200 to 400 mg 155 to 310 mg base daily. Rheumatoid Arthritis. The action of hydroxychloroquine is cumulative and may.