Quinine sulphate is indicated in the resistant strains of plasmodium falciparum malaria. It is also indicated as a muscle relaxant in myotonia congenita and myotonic contraction as well as nocturnal muscle cramps. A secondary indication is its use in the diagnostic test for myasthenia gravis.
The health and medical information provided here is for general purposes only and is not a substitute for the expertise and judgment of your physician, or other health care professional. It should not be understood to indicate that the use of this medicine is safe, appropriate or effective for you. Always consult your health care professional before using this, or any other, drug.
Directions to use
Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.
Take with food if quinine upsets your stomach.
Call your doctor if your malaria symptoms do not improve after 2 days of taking quinine, or if your symptoms return after you have finished the medication.
Take this medication for the full prescribed length of time. Your symptoms may get better before your condition is completely cleared. If you stop using the medication early for any reason, talk to your doctor about other forms of malaria prevention.
If you need surgery, tell the surgeon ahead of time that you are using quinine. You may need to stop using the medicine for a short time.
This medication can cause unusual results with certain medical tests. Tell any doctor who treats you that you are using quinine.
No medication is 100% effective in treating malaria. For best results, keep using the medication as directed. Talk with your doctor if you have fever, vomiting, or diarrhea during your treatment.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop using quinine and call your doctor at once if you have any of these serious side effects:
fever, chills, confusion, weakness;
severe vomiting, stomach pain, diarrhea;
problems with vision or hearing;
chest pain, trouble breathing;
urinating less than usual or not at all;
fast, pounding, or fluttering heartbeats;
weak or shallow breathing, feeling like you might pass out;
pale skin, easy bruising, purple or red pinpoint spots under your skin;
fever, sore throat, and headache with a severe blistering, peeling, and red skin rash; or
loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).
Less serious side effects may include:
headache, blurred vision;
dizziness, spinning sensation;
mild nausea, diarrhea, or stomach pain;
muscle weakness; or
warmth, redness, or tingly feeling under the skin.