Hydroxychloroquine Not Linked to Longer Heart Rhythm Intervals in Rheumatoid Arthritis or Lupus Patients
Of the whole study group (RA and SLE), 54% used hydroxychloroquine and 44% had QTc lengths of more than 440 milliseconds. They found that the adjusted QTc length among hydroxychloroquine users was comparable to those who did not use the drug.