Malaria parasites can enter the body through these mosquito bites, and then live in body tissues such as red blood cells or the liver. This medication is used to kill the malaria parasites living inside red blood cells. Chloroquine base 150 mg Hydroxychloroquine 200 mg tab ranb Chloroquine Phosphate Tablets are an antimalarial and amebicidal drug. Each tablet, for oral administration, contains 250 mg chloroquine phosphate equivalent to 150 mg base or 500 mg chloroquine phosphate equivalent to 300 mg base. CONTRAINDICATIONS. Use of this drug is contraindicated in the presence of retinal or visual field changes. Contraindications Patients with psoriasis or porphyria, in whom chloroquine may precipitate attacks of these diseases. Chloroquine is rapidly and almost completely absorbed from the gastrointestinal tract. Excretion of chloroquine is quite slow, but is increased by acidification of the urine. Find patient medical information for Chloroquine Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Both drugs may be needed for a complete cure and to prevent the return of infection (relapse). In some cases, you may need to take a different medication (such as primaquine) to kill the malaria parasites living in other body tissues. Chloroquine contraindications Chloroquine Indications, Side Effects, Warnings -, Chloroquine TUSOM Pharmwiki Plaquenil how does it work Chloroquine is generally a safe and effective medication. However, as this eMedTV page explains, there are some cases in which it should be avoided. This article lists a few of the contraindications for chloroquine and provides a link to more details. Contraindications for Chloroquine - Malaria Home Page. Chloroquine Oral Uses, Side Effects, Interactions.. Aralen Chloroquine Uses, Dosage, Side Effects.. Chloroquine Interactions. Antacids, such as Tagamet cimetidine and others. Arsenic trioxide. Rheumatrex, Trexall methotrexate Tylenol acetaminophen Iron products. Kaolin. Niacin. Rifadin or Rimactane rifampin Nydrazid isoniazid Medication for irregular heartbeat. WebMD provides common contraindications for Hydroxychloroquine Oral. Find out what health conditions may be a health risk when taken with Hydroxychloroquine Oral Embryonic deaths and malformations of anophthalmia and microphthalmia in the offspring have been reported when pregnant rats received large doses of chloroquine. Guidelines recommend hydroxychloroquine as an alternative to chloroquine as a treatment option for acute malaria and for prophylaxis in pregnant women during all trimesters.