All medicines – both those prescribed by your doctor and any you buy over the counter – must be checked, as some can increase the risk of sudden death. For people with LQTS there are specific medications that can have a serious effect by further prolonging the QT interval. This list includes drugs that can stimulate and irritate the heart by causing adrenaline-like effects. Chloroquine transfection mechanism Plaquenil liver enzymes Hydroxychloroquine olecranon bursitis Leflunomide methotrexate and hydroxychloroquine Chloroquine is an anti-malaria medicine that works by interfering with the growth of parasites in the red blood cells of the human body. Parasites that cause malaria typically enter the body through the bite of a mosquito. Hydroxychloroquine has a lower risk of ocular toxicity, both corneal and retinal, compared with chloroquine. Smoking possibly reduces the efficacy of hydroxychloroquine, although studies have not usually confirmed this clinical impression. Hydroxychloroquine is considered safer than chloroquine during pregnancy and lactation. Chloroquine is an anti-malaria medicine that works by interfering with the growth of parasites in the red blood cells of the human body. Parasites that cause malaria typically enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Chloroquine is used. In people with Brugada Syndrome the number and range of drugs that may make the condition worse is unknown and caution must be used. You must always check with your GP or cardiologist before taking any new medication, as this list will change with time. Chloroquine long qt Long QT Syndrome LQTS, Hydroxychloroquine DermNet NZ Plaquenil causing low wbc countCan i take amitriptyline with plaquenil take a hour apartChloroquine chemical nameTeaching about hydroxychloroquine List of Drugs to be Avoided by Patients with Congenital Long QT Syndrome LQTS* updated July 2013 *This list is not comprehensive but is meant to be a practical list for those clinicians managing patients with LQTS in Canada. List of Drugs to be Avoided by Patients with Congenital Long.. Chloroquine PeaceHealth. Aralen, Chloroquine phosphate chloroquine dosing.. Find patient medical information for Hydroxychloroquine Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Oct 09, 2018 Muscular Weakness All patients on long-term therapy with chloroquine should be questioned and examined periodically, including testing knee and ankle reflexes, to detect any evidence of muscular weakness. If weakness occurs, discontinue the drug. DRUGS TO BE AVOIDED BY CONGENITAL LONG QT PATIENTS CredibleMeds® has reviewed all available evidence and has placed the following drugs in designated risk categories for their risk of causing torsades de pointes TdP Known Risk of TdP KR, Possible Risk of TdP PR, Conditional Risk of TdP CR or Special Risk SR.