Hetquenil 200mg (Hydroxychloroquine 200mg)

What is Hetquenil 200mg?

Hetquenil 200mg is a prescription medication that contains Hydroxychloroquine Sulphate, a disease-modifying antirheumatic drug (DMARD) and antimalarial agent. It is widely used for the treatment and prevention of malaria, as well as autoimmune conditions such as rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE).

What are the Uses of Hetquenil 200mg?

• Prevention and treatment of malaria

• Rheumatoid arthritis (RA) – reduces inflammation and joint pain

• Systemic lupus erythematosus (SLE) – controls immune system activity and reduces flare-ups

• Discoid lupus erythematosus

• Off-label: Sjögren’s syndrome, sarcoidosis, and COVID-19 (investigational use)

What are the Benefits of Hetquenil 200mg?

• Improves joint function in rheumatoid arthritis

• Reduces lupus symptoms such as fatigue, rashes, and joint pain

• Helps prevent malaria

• Low toxicity compared to other long-term immunosuppressants

• May slow progression of autoimmune diseases

How Does Hetquenil 200mg Work?

Hydroxychloroquine works by:

• Disrupting malaria parasites inside red blood cells

• Modulating the immune system in autoimmune diseases

• Reducing inflammation and immune overactivity in conditions like RA and lupus

How to Take Hetquenil 200mg?

• Take the tablet orally with food or milk to reduce stomach upset.

• Follow the prescribed schedule—usually once or twice daily.

• Do not chew or crush the tablet unless directed.

Dosage of Hetquenil 200mg

Dosage depends on the condition being treated:

• Malaria prevention: 400 mg once weekly (i.e., 2 tablets of 200 mg)

• Malaria treatment: 800 mg initially, followed by 400 mg at 6–8 hours, then 400 mg daily for 2 days

• Rheumatoid arthritis / Lupus: 200–400 mg daily (one or two tablets)

Note: Long-term use requires regular monitoring.

Missed Dose and Overdose

Missed Dose:

• Take it as soon as possible.

• If close to the next dose, skip the missed dose. Don’t double up.

Overdose:

• Can cause serious heart rhythm problems, seizures, vision issues, or death, especially in children.

• Seek immediate emergency care if overdose is suspected.

What are the Available Strengths of Hetquenil?

• Hetquenil 200 mg

• Hetquenil 400 mg

Both are available as oral tablets.

Side Effects of Hetquenil 200mg

Common Side Effects:

• Nausea or vomiting

• Stomach cramps

• Headache

• Dizziness

• Skin rash

Serious Side Effects:

• Retinal damage (may affect vision permanently)

• QT interval prolongation (abnormal heart rhythm)

• Muscle weakness

• Blood disorders

• Low blood sugar (in diabetic patients)

Interactions of Hetquenil 200mg

May interact with:

• Digoxin – increases its effect/toxicity

• Antidiabetic medications – risk of hypoglycemia

• Drugs that prolong QT interval – risk of heart rhythm issues

• Antiepileptics – may affect seizure control

Always tell your doctor about all medications you are taking.

Precautions of Hetquenil 200mg

• Eye monitoring is essential during long-term use (every 6–12 months)

• Avoid if you have retinal disease or vision changes

• Caution in kidney/liver impairment

• Pregnancy and breastfeeding: Use only if prescribed

• May lower blood sugar – monitor in diabetics

Storage Information

• Store at room temperature (below 25°C)

• Keep in a dry place, away from moisture and light

• Keep out of reach of children

• Do not use after the expiry date

Availability in the US and Australia

• United States: Available as Plaquenil and generics (prescription only)

• Australia: Approved and available by prescription under the TGA; used for autoimmune conditions and malaria

Frequently Asked Questions (FAQs) 

Q1: How long does it take for Hetquenil to show results in RA or lupus?

It may take 4 to 12 weeks to notice significant symptom improvement.

Q2: Is long-term use of Hetquenil safe?

Yes, with regular monitoring of the eyes and blood counts.

Q3: Can Hetquenil cause vision problems?

Yes. Retinal toxicity is rare but serious. Regular eye exams are necessary.

Q4: Is it safe during pregnancy?

Hydroxychloroquine is generally considered safe during pregnancy under medical advice, particularly for autoimmune diseases.

Q5: Can children take Hetquenil?

Yes, but only under strict medical supervision with careful dosing due to risk of toxicity.