Chloroquine is a medicine used to prevent and treat malaria, a red blood cell infection transmitted by the bite of a mosquito, and to treat some conditions such as liver disease caused by protozoa (tiny one-celled animals). Active Ingredient: Chloroquine Availability: In Stock Exp. Date: Approx. Jan 2027 |
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INDICATIONS
Chloroquine is indicated for the suppressive treatment and for acute attacks of malaria due to P. vivax, P.malariae, P. ovale, and susceptible strains of P. falciparum. The drug is also indicated for the treatment of extraintestinal amebiasis.
INSTRUCTIONS
Take Cloroquina with meals or milk to lessen stomach upset, unless otherwise directed by your doctor.
t is very important that you take Cloroquina only as directed. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. To do so may increase the chance of serious side effects.
If you are taking Cloroquina to help keep you from getting malaria, keep taking it for the full time of treatment. If you already have malaria, you should still keep taking Cloroquina for the full time of treatment even if you begin to feel better after a few days. This will help to clear up your infection completely. If you stop taking Cloroquina too soon, your symptoms may return.
Chloroquine works best when you take it on a regular schedule. For example, if you are to take it once a week to prevent malaria, it is best to take it on the same day each week. Or if you are to take two doses a day, one dose may be taken with breakfast and the other with the evening meal. Make sure that you do not miss any doses. If you have any questions about this, check with your health care professional.
If you miss a dose of chloroquine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
DOSAGE
The dosage of Cloroquina phosphate is often expressed in terms of equivalent Cloroquina base. Each 500 mg tablet of ARALEN contains the equivalent of 300 mg Cloroquina base. In infants and children the dosage is preferably calculated by body weight.
Malaria: Suppression - Adult Dose: 500 mg (= 300 mg base) on exactly the same day of each week.
Pediatric Dose: The weekly suppressive dosage is 5 mg calculated as base, per kg of body weight, but should not exceed the adult dose regardless of weight.
If circumstances permit, suppressive therapy should begin two weeks prior to exposure. However, failing this in adults, an initial double (loading) dose of 1 g (= 600 mg base), or in children 10 mg base/kg may be taken in two divided doses, six hours apart. The suppressive therapy should be continued for eight weeks after leaving the endemic area.
For Treatment of Acute Attack.
Adults: An initial dose of 1 g (= 600 mg base) followed by an additional 500 mg (= 300 mg base) after six to eight hours and a single dose of 500 mg (= 300 mg base) on each of two consecutive days. This represents a total dose of 2.5 g Cloroquina phosphate or 1.5 g base in three days.
The dosage for adults of low body weight and for infants and children should be determined as follows:
First dose: 10 mg base per kg (but not exceeding a single dose of 600 mg base).
Second dose: (6 hours after first dose) 5 mg base per kg (but not exceeding a single dose of 300 mg base).
Third dose: (24 hours after first dose) 5 mg base per kg.
Fourth dose: (36 hours after first dose) 5 mg base per kg.
For radical cure of vivax and malariae malaria concomitant therapy with an 8-aminoquinoline compound is necessary.
Extraintestinal Amebiasis: Adults,1 g (600 mg base) daily for two days, followed by 500 mg (300 mg base) daily for at least two to three weeks. Treatment is usually combined with an effective intestinal amebicide.
STORAGE
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
SAFETY INFORMATION
If you will be taking Cloroquina for a long time, it is very important that your doctor check you at regular visits for any blood problems or muscle weakness that may be caused by chloroquine. In addition, check with your doctor immediately if blurred vision, difficulty in reading, or any other change in vision occurs during or after treatment. Your doctor may want you to have your eyes checked by an ophthalmologist (eye doctor).
If your symptoms do not improve within a few days or if they become worse, check with your doctor.
Make sure you know how you react to Cloroquina before you drive, use machines, or do anything else that could be dangerous if you are not able to see well.
Chloroquine may cause blurred vision, difficulty in reading, or other change in vision. It may also cause some people to become lightheaded.
If these reactions are especially bothersome, check with your doctor.
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
There are no adequate and well-controlled studies evaluating the safety and efficacy of Cloroquina in pregnant women. Usage of Cloroquina during pregnancy should be avoided except in the suppression or treatment of malaria when in the judgment of the physician the benefit outweighs the potential risk to the fetus.
SIDE EFFECTS
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. When Cloroquina is used for short periods of time, side effects usually are rare. However, when it is used for a long time and/or in high doses, side effects are more likely to occur and may be serious.
Check with your doctor immediately if any of the following side effects occur:
Less common
Blurred vision
change in vision
eye pain
loss of vision
Rare
Black, tarry stools
blood in urine or stools
convulsions (seizures)
cough or hoarseness
feeling faint or lightheaded
fever or chills
increased muscle weakness
lower back or side pain
mood or other mental changes
painful or difficult urination
pinpoint red spots on skin
ringing or buzzing in ears or any loss of hearing
sore throat
unusual bleeding or bruising
unusual tiredness or weakness
Symptoms of overdose
Drowsiness
headache
increased excitability
Note: The side effects in the Less Common category above may also occur or get worse after you stop taking chloroquine.
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
Diarrhea
difficulty in seeing to read
headache
itching (more common in black patients)
loss of appetite
nausea or vomiting
stomach cramps or pain
Less common
Bleaching of hair or increased hair loss
blue-black discoloration of skin, fingernails, or inside of mouth
skin rash
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Please find the full description of Chloroquine at Drugs.com and general information at Wikipedia