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Imulast 400mg Tablet
Last updated on 06 Aug 2026 | 09:49 AM (IST)
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MRP: ₹117.19
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Introduction to Imulast 400mg Tablet
Imulast 400mg Tablet consists of Hydroxychloroquine as an active ingredient. It is a medication used for several decades to treat and prevent malaria. It also manages certain autoimmune conditions such as rheumatoid arthritis and lupus. However, it gained significant attention in early 2020 due to its potential use in treating COVID-19. During the COVID-19 pandemic, there was much speculation and debate about the effectiveness of Imulast 400mg Tablet as a treatment for the disease. Some early laboratory studies and reports suggested that it might have antiviral properties and be useful in reducing the severity of COVID-19 symptoms.
In some cases, Imulast 400mg Tablet is also used as a steroid-sparing agent, allowing for a reduction in the dosage of corticosteroids used to manage these conditions. This medication helps reduce skin sensitivity to sunlight and minimize the occurrence of skin rashes or lesions triggered by UV exposure. Individuals with pre-existing retinal or visual field changes and previous blood disorders should exercise caution when considering Imulast 400mg Tablet therapy.
Uses of Imulast 400mg Tablet
Imulast 400mg Tablet is indicated to treat the following conditions:
- Rheumatoid arthritis
- Juvenile idiopathic arthritis (in children)
- Discoid and systemic lupus erythematosus.
- Skin problems caused due to sensitivity to sunlight
- Treatment & prevention of uncomplicated malaria.
- Prevention of graft vs. host disease after stem cell transplantation
Therapeutic Effects of Imulast 400mg Tablet
Imulast 400mg Tablet exerts its effects by accumulating in the acidic compartments of cells, such as the lysosomes, where it interferes with various cellular processes. It inhibits the acidification of these compartments, impairs the processing of antigens, and alters the function of immune cells. Additionally, this medicine may have antiviral properties by interfering with viral entry into cells and inhibiting viral replication.
Interaction of Imulast 400mg Tablet with other drugs
Inform your healthcare provider about all your medicines, including prescription, over-the-counter, nutritional or vitamin supplements, and herbal products. Certain medications may interact with Imulast 400mg Tablet, reducing effectiveness by causing undesirable side effects.
More Information about Imulast 400mg Tablet
- Store at temprature between 20-25°C (68-77°F).
- Keep away from moisture, heat, and light.
- It should not be frozen.
- Keep it in its original packaging until it is ready to be used.
- Keep out of the reach of children and pets.
How to consume Imulast 400mg Tablet
Imulast 400mg Tablet capsules or tablets is taken orally. The medication is usually taken once a day, with or without food, as directed by your healthcare provider. Swallow the capsule or tablet whole without crushing or chewing it.
Safety Advice for Imulast 400mg Tablet
Breast Feeding
Breastfeeding women should consult a doctor before taking Imulast 400mg Tablet.
Alcohol
Alcohol can interact with Imulast 400mg Tablet in various ways, including increasing the risk of side effects, decreasing the effectiveness of the medication, or causing other harmful interactions
Liver
People with pre-existing liver disease, such as cirrhosis or hepatitis, should consult a doctor before taking Imulast 400mg Tablet.
Lungs
If you have a pre-existing lung condition, such as chronic obstructive pulmonary disease (COPD) or asthma, it is important to consult your healthcare provider before taking Imulast 400mg Tablet.
Driving
Patients should always monitor their response to the Imulast 400mg Tablet medication and be cautious when driving or operating machinery if they experience any side effects that may impair their ability to do so safely.
Pregnancy
Imulast 400mg Tablet is generally considered safe during pregnancy. However, it is always important to consult a healthcare provider before using any medication during pregnancy.
Side Effects of Imulast 400mg Tablet
Imulast 400mg Tablet causes side effects like all medications, although not everyone will experience them.
Serious:
- Heart rhythm abnormalities (arrhythmias)
- Retinal Toxicity
- Aplastic anemia or agranulocytosis (decrease in red or white blood cells or platelets)
- Allergic Reactions
- Liver or Kidney Problems
Common:
- Nausea and vomiting
- Diarrhea
- Headache
- Dizziness
- Rash or itching
- Abdominal cramps
- Loss of appetite
- Hair loss or changes in hair color
Word of Advice
It is crucial to prioritize safety when considering the use of Imulast 400mg Tablet or any other medication. To ensure your well-being, consult a healthcare professional who can guide you based on your medical history and condition. Be aware of potential side effects and report any concerning symptoms promptly. Regular blood monitoring may be necessary, especially in individuals at higher risk or with pre-existing blood disorders. Taking these precautions and maintaining open communication can help promote the safe use of this medicine.
FAQs about Imulast 400mg Tablet
Q1.
Can Imulast 400mg Tablet Prevent or Cure COVID-19?
Major health organizations do not recommend using Imulast 400mg Tablet to prevent or treat COVID-19. Studies have not provided sufficient evidence to support its effectiveness against the virus.
Q2.
Can Imulast 400mg Tablet be used for weight loss?
No, Imulast 400mg Tablet is not approved or indicated for weight loss. Its use should be strictly for approved medical conditions under the guidance of a healthcare professional.
Q3.
Can Imulast 400mg Tablet be used in children?
Imulast 400mg Tablet can be used in children for certain medical conditions, such as juvenile idiopathic arthritis or lupus. However, the dosage and safety considerations may vary depending on the child's age and weight. Consult a pediatric healthcare professional for appropriate guidance.
Q4.
Can Imulast 400mg Tablet cause vision loss?
Prolonged use of Imulast 400mg Tablet can rarely lead to retinal toxicity, which may result in vision changes or loss of vision. Regular eye examinations are recommended to detect any potential retinal damage.
Q5.
Can Imulast 400mg Tablet interact with birth control pills?
Imulast 400mg Tablet is not known to have significant interactions with hormonal birth control pills. However, informing your healthcare professional about all medications you take, including contraceptives, is always recommended to ensure no potential interactions.
Q6.
Can Imulast 400mg Tablet be used in patients with kidney disease?
Imulast 400mg Tablet can be used in patients with kidney disease, but dosage adjustments may be necessary based on the level of kidney function. Close monitoring of kidney function is recommended during treatment in individuals with kidney disease.
Fact Box of Imulast 400mg Tablet
Molecule name: Hydroxychloroquine | Therapeutic class: Anti-viral |
Pharmacological class: Antimalarial Drugs and Disease-modifying Antirheumatic Drugs (DMARDs) | Indications: 1. Rheumatoid arthritis 2. Juvenile idiopathic arthritis (in children) 3. Discoid and systemic lupus erythematosus. 4. Skin problems caused due to sensitivity to sunlight. 5. Treatment & prevention of uncomplicated malaria. 6. Prevention of graft vs. host disease after stem cell transplantation |
References
- Zentiva, Electronic Medicines Compendium (EMC), [Revised on Dec 2021] [Accessed on 16th May 2023], https://www.medicines.org.uk/emc/files/pil.1764.pdf
- Douglas F. Lake and Adrienne D. Briggs, Immunopharmacology, Lange’s Basic & Clinical Pharmacology, 14th Edition, 2018, 977-1002.
- Concordia Pharmaceuticals Inc, US Food and Drug Administration, [Revised on Jan 2017] [Accessed on 16th May 2023], https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/009768s037s045s047lbl.pdf
- H Khoury et al; Hydroxychloroquine for the prevention of acute graft-versus-host disease after unrelated donor transplantation; Published on 01/11/2003; Accessed on 16/05/2023; https://www.astctjournal.org/article/S1083-8791(03)00294-5/fulltext
Disclaimer
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Author Details
Written By
Dr. Archana Gupta
BDS
Reviewed By
Dr. Tejashwin Adiga
MBBS
Last updated : 06 Aug 2026 | 09:49 AM (IST)
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