Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria.

Hydroxychloroquine is not effective against all strains of malaria, or against malaria in areas where the infection has been resistant to a similar drug called chloroquine. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus.


Hydroxychloroquine is being used to try and stop Coronavirus from spreading inside your body It is not yet known if Hydroxychloroquine is a safe and effective treatment for COVID-19. Do not buy Hydroxychloroquine from an online pharmacy or use the medicine without a prescription from your own doctor.

Made up of:

HCQ undergoes N-dealkylation of the tertiary amine along with oxidative deamination of the primary amines leading to carboxylic acid derivatives, Desethylhydroxychloroquine, and Desethylchloroquine.


Hydroxychloroquine is used to prevent or treat malaria caused by mosquito bites. The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Discuss the most recent information with your doctor before traveling to areas where malaria occurs.

This medication is also used to treat certain auto-immune diseases (lupus, rheumatoid arthritis). It belongs to a class of medications known as disease-modifying Antirheumatic drugs (DMARDs). It can reduce skin problems in lupus and prevent swelling/pain in arthritis

What side effects can this medication cause?

Hydroxychloroquine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • Headache.
  • Dizziness.
  • Loss of appetite.
  • Nausea.
  • Diarrhea.
  • Stomach pain
  • Vomiting
  • Rash

If you experience any of the following symptoms, call your doctor immediately:

  • Difficulty reading or seeing (words, letters, or parts of objects missing)
  • Sensitivity to light
  • Blurred vision
  • Changes in vision
  • Seeing light flashes or streaks
  • Difficulty hearing
  • Ringing in ears
  • Muscle weakness
  • Unusual bleeding or bruising
  • Bleaching or loss of hair
  • Mood or mental changes
  • Irregular heartbeat
  • Drowsiness
  • Convulsions
  • Decreased consciousness or loss of consciousness
  • Thinking about harming or killing yourself

Please note:


Hydroxychloroquine and a related drug, chloroquine, are currently under study as possible treatments for COVID-19. This is the illness caused by the new coronavirus. These drugs have not yet been approved by the FDA for this use. Do not use these medications to treat COVID-19 unless your doctor recommends that you do so.

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