Metoprolol is a type of medication called a beta blocker. It works by relaxing blood vessels and slowing heart rate, which improves blood flow and lowers blood pressure. Chloroquine injection medication Hydroxychloroquine common than Plaquenil Hydroxychloroquine belongs to a group of medications known as anti-inflammatories and antimalarials. It is used alone or in combination with other anti-arthritic medications to treat rheumatoid arthritis. It helps to reduce pain, stiffness, and swelling in joints. Is not known. Hydroxychloroquine, like chloroquine, is a weak base and may exert its effect by concentrating in the acid vesicles of the parasite and by inhibiting polymerization of heme. It can also inhibit certain enzymes by its interaction with DNA. Activity in vitro and in Clinical Infections Hydroxychloroquine is active against the. All information contained within the Johns Hopkins Lupus Center website is intended for educational purposes only. Physicians and other health care professionals are encouraged to consult other sources and confirm the information contained within this site. Doctors prescribe the long-acting form of the drug (Toprol XL) to treat heart failure. Metoprolol can also improve the likelihood of survival after a heart attack. Plaquenil and sarafem interactions Metoprolol Lopressor - Side Effects, Dosage, Interactions., PLAQUENIL HYDROXYCHLOROQUINE SULFATE TABLETS, USP DESCRIPTION How does plaquenil fight malariaBuy aralen phosphateHow to dissolve chloroquineChloroquine diphosphate lysosome This eMedTV Web page takes a look at medications that may cause drug interactions with chloroquine, such as codeine, beta blockers, and antacids. This page lists other drugs that can cause complications and describes the problems that may occur. Drug Interactions With Chloroquine. Antidepressants Johns Hopkins Lupus Center. Hydroxychloroquine Uses, Dosage & Side Effects -. Plaquenil and Other Interactions. The drug may make you dizzy. You shouldn't drive, operate machinery, or perform any other activity that requires you to be alert until you are certain you can do. Feb 19, 2020 Dosage for Plaquenil. The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. Find patient medical information for Sarafem Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.