Plaquenil
Porphyria Cutanea Tarda, Q Fever, Malaria + 7 more
Treatment
14 FDA approvals
20 Active Studies for Plaquenil
Treatment for
Porphyria Cutanea Tarda
What is Plaquenil
Hydroxychloroquine
The Generic name of this drug
Treatment Summary
Hydroxychloroquine is a medication used to treat and prevent malaria. It is also used to treat autoimmune diseases like rheumatoid arthritis, discoid lupus erythematosus, and systemic lupus erythematosus. Hydroxychloroquine was developed during World War II as a less severe alternative to quinacrine, and was approved by the FDA in 1955. In 2020, the FDA revoked its emergency use authorization for the treatment of COVID-19 due to a fatality in the group being treated with hydroxychloroquine.
Plaquenil
is the brand name
Plaquenil Overview & Background
Brand Name
Generic Name
First FDA Approval
How many FDA approvals?
Plaquenil
Hydroxychloroquine
1955
107
Approved as Treatment by the FDA
Hydroxychloroquine, also known as Plaquenil, is approved by the FDA for 14 uses which include Lupus and Malaria .
Lupus
Malaria
Lupus Erythematosus, Discoid
Malaria
Systemic Lupus Erythematosus (SLE)
uncomplicated Malaria caused by Plasmodium falciparum
Rheumatoid Arthritis
Helps manage Rheumatoid Arthritis
Uncomplicated Malaria caused by Plasmodium ovale
Discoid Lupus Erythematosus (DLE)
Uncomplicated Malaria caused by Plasmodium Vivax
Plasmodium Infections
Malaria
Malaria
Malaria
Effectiveness
How Plaquenil Affects Patients
Hydroxychloroquine affects the functioning of a certain cell structure in humans and malaria. This alters the pH of the cells, which can help treat autoimmune diseases and makes it harder for malaria to get energy from hemoglobin. Hydroxychloroquine is generally taken once a week, but people with diabetes should keep track of their blood sugar levels as it can cause low blood sugar. It is not effective against malaria in areas where chloroquine resistance has been reported.
How Plaquenil works in the body
Hydroxychloroquine works in a few different ways to fight against malaria and other viruses. It accumulates in the parasite's lysosomes, which raises the acidity and makes it harder for the parasite to feed on hemoglobin. It can also block the action of the parasite's heme polymerase. In humans, the drug raises acidity in cells, preventing them from presenting antigens to autoimmune cells. It also reduces the release of inflammatory cytokines. Additionally, it raises acidity in endosomes, which blocks viruses from fusing and entering cells. Finally, it prevents the glycosylation of ACE
When to interrupt dosage
The suggested measure of Plaquenil is contingent upon the recognized ailment, including Lupus Erythematosus, Discoid, Sjögren's Syndrome and Malaria. The dosage likewise fluctuates as per the technique of administration (e.g. Oral or Tablet) outlined in the table beneath.
Condition
Dosage
Administration
Q Fever
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Malaria
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Rheumatoid Arthritis
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Lupus
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Lupus Erythematosus, Discoid
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Malaria
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Malaria
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Malaria
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Malaria
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Porphyria Cutanea Tarda
, 200.0 mg, 400.0 mg, 300.0 mg, 100.0 mg
, Oral, Tablet, film coated, Tablet, film coated - Oral, Tablet, coated - Oral, Tablet, Tablet - Oral, Enteral, Tablet, film coated - Enteral, Tablet, coated
Warnings
Plaquenil Contraindications
Condition
Risk Level
Notes
Severe Hypersensitivity Reactions
Do Not Combine
Hydroxychloroquine may interact with Pulse Frequency
There are 20 known major drug interactions with Plaquenil.
Common Plaquenil Drug Interactions
Drug Name
Risk Level
Description
2-Methoxyethanol
Major
The risk or severity of adverse effects can be increased when Hydroxychloroquine is combined with 2-Methoxyethanol.
7-Nitroindazole
Major
The therapeutic efficacy of 7-Nitroindazole can be decreased when used in combination with Hydroxychloroquine.
9-(N-methyl-L-isoleucine)-cyclosporin A
Major
The risk or severity of adverse effects can be increased when Hydroxychloroquine is combined with 9-(N-methyl-L-isoleucine)-cyclosporin A.
Abetimus
Major
The risk or severity of adverse effects can be increased when Hydroxychloroquine is combined with Abetimus.
Acebutolol
Major
The risk or severity of QTc prolongation can be decreased when Hydroxychloroquine is combined with Acebutolol.
Plaquenil Toxicity & Overdose Risk
An overdose of hydroxychloroquine can result in headache, drowsiness, vision problems, extreme fatigue, low potassium levels, and abnormal heart rhythms. To treat the overdose, a person should receive activated charcoal at least five times the dose of hydroxychloroquine within 30 minutes and may additionally receive Diazepam, blood transfusions, fluids, and ammonium chloride to help excrete the drug. They may also receive epinephrine if necessary. Patients should be monitored for at least 6 hours after treatment.
Plaquenil Novel Uses: Which Conditions Have a Clinical Trial Featuring Plaquenil?
There are 141 ongoing clinical trials to determine the effectiveness of Plaquenil in treating Rheumatoid Arthritis, Q Fever and Porphyria Cutanea Tarda.
Condition
Clinical Trials
Trial Phases
Lupus
65 Actively Recruiting
Phase 2, Not Applicable, Phase 1, Phase 3, Phase 4, Early Phase 1
Q Fever
0 Actively Recruiting
Malaria
0 Actively Recruiting
Lupus Erythematosus, Discoid
9 Actively Recruiting
Phase 2, Phase 3, Phase 1
Malaria
0 Actively Recruiting
Malaria
0 Actively Recruiting
Rheumatoid Arthritis
58 Actively Recruiting
Not Applicable, Phase 3, Phase 2, Phase 1, Phase 4
Malaria
0 Actively Recruiting
Porphyria Cutanea Tarda
0 Actively Recruiting
Malaria
0 Actively Recruiting
Plaquenil Reviews: What are patients saying about Plaquenil?
5
Patient Review
1/1/2018
Plaquenil for Systemic Lupus Erythematosus
4.7
Patient Review
3/19/2018
Plaquenil for Rheumatoid Arthritis
4
Patient Review
8/29/2018
Plaquenil for Malaria caused by the Protozoa Plasmodium Vivax
3.7
Patient Review
7/21/2019
Plaquenil for Rheumatoid Arthritis
3.7
Patient Review
4/22/2017
Plaquenil for Rheumatoid Arthritis
3.7
Patient Review
1/15/2017
Plaquenil for Rheumatoid Arthritis
3.3
Patient Review
3/18/2018
Plaquenil for Rheumatoid Arthritis
3
Patient Review
8/21/2019
Plaquenil for Rheumatoid Arthritis
2.3
Patient Review
1/2/2017
Plaquenil for Rheumatoid Arthritis
2
Patient Review
8/5/2020
Plaquenil for Systemic Lupus Erythematosus
2
Patient Review
10/3/2017
Plaquenil for Rheumatoid Arthritis
2
Patient Review
9/3/2018
Plaquenil for Rheumatoid Arthritis
Patient Q&A Section about plaquenil
These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.
Is Plaquenil a steroid?
"Plaquenil falls into a group of drugs called disease-modifying antirheumatic drugs (DMARDs), which are used to decrease inflammation that does the damage in many types of arthritis."
Answered by AI
What are the most common side effects of Plaquenil?
"You could experience some side effects from taking this medication, such as nausea, vomiting, loss of appetite, diarrhea, dizziness, or headache. If any of these effects last or get worse, let your doctor or pharmacist know. Keep in mind that your doctor prescribed this medication because they believe the benefits to you are greater than any potential risks of side effects."
Answered by AI
What does Plaquenil do to the eyes?
"Plaquenil interferes with retinal pigment cells, which can result in blurry or distorted vision. In severe cases, the macula (the central part of the retina that provides clear vision) may be completely destroyed."
Answered by AI
What is Plaquenil prescribed for?
"Hydroxychloroquine is a drug that is used to prevent and treat malaria. It is classified as a disease-modifying anti-rheumatic drug (DMARD). DMARDs are drugs that can decrease the pain and swelling of arthritis, as well as prevent joint damage and reduce the risk of long-term disability."
Answered by AI