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Lepsone Tablet

লেপসোন ট্যাবলেট

Brand Name Lepsone
Type Tablet
Weight 100 mg
Generic Dapsone
Manufacturer Gaco Pharmaceuticals Ltd.

About Lepsone

Lepsone Tablet (Gaco Pharmaceuticals Ltd.) is a brand medicine containing the generic Dapsone .

Medical information for Lepsone Tablet 100 mg

Uses, dosage, side effects, and safety details below apply to Lepsone Tablet 100 mg (generic: Dapsone). This is general information — consult a doctor before use.

Introduction

A sulfone active against a wide range of bacteria but mainly employed for its actions against mycobacterium leprae. Its mechanism of action is probably similar to that of the sulfonamides which involves inhibition of folic acid synthesis in susceptible organisms. It is also used with pyrimethamine in the treatment of malaria. (From Martindale, The Extra Pharmacopoeia, 30th ed, p157-8)

Uses

Lepsone Tablet 100 mg is a sulfone drug used to treat acne vulgaris, Hansen's disease, and dermatitis herpetiformis.

For the treatment and management of leprosy and dermatitis herpetiformis.

Associated Conditions

  • Acne Vulgaris
  • Bullous Systemic Lupus Erythematosus
  • Bullous dermatitis herpetiformis
  • Hansen's Disease
  • Pemphigus Vulgaris (PV)
  • Relapsing Polychondritis
  • Mild Pneumocystis pneumonia
  • Mild Toxoplasma gondii encephalitis
  • Moderate Pneumocystis pneumonia
  • Moderate Toxoplasma gondii encephalitis
  • Refractory Idiopathic thrombocytopenic purpura

Pharmacodynamics

Lepsone Tablet 100 mg is a sulfone with anti-inflammatory immunosuppressive properties as well as antibacterial and antibiotic properties. Lepsone Tablet 100 mg is the principal drug in a multidrug regimen recommended by the World Health Organization for the treatment of leprosy. As an anti-infective agent, it is also used for treating malaria and, recently, for Pneumocystic carinii pneumonia in AIDS patients. Lepsone Tablet 100 mg is absorbed rapidly and nearly completely from the gastrointestinal tract. Lepsone Tablet 100 mg is distributed throughout total body water and is present in all tissues. However, it tends to be retained in skin and muscle and especially in the liver and kidney: traces of the drug are present in these organs up to 3 weeks after therapy cessation.

Mechanism of Action

Lepsone Tablet 100 mg acts against bacteria and protozoa in the same way as sulphonamides, that is by inhibiting the synthesis of dihydrofolic acid through competition with para-amino-benzoate for the active site of dihydropteroate synthetase. The anti-inflammatory action of the drug is unrelated to its antibacterial action and is still not fully understood.

Absorption

Bioavailability is 70 to 80% following oral administration.

Protein Binding

70 to 90%

Route of Elimination

Renal

Half Life

28 hours (range 10-50 hours)

Toxicity

Overdosage might be expected to produce nasal congestion, syncope, or hallucinations. Measures to support blood pressure should be taken if necessary.

Food Interactions

  • Take with or without food. The absorption is unaffected by food.

Dosage

  • Apply once daily (7.5% gel) and twice daily (5% gel) after the skin is gently washed and patted dry
  • Apply approximately a pea-sized amount of gel in a thin layer to the acne affected area
  • Rub the gel gently and completely
  • If there is no improvement after 12 weeks, treatment with this gel should be reassessed
  • Lepsone Tablet 100 mg gel maybe gritty with visible drug substance particles
  • Wash hands after application

Frequently Asked Questions About Lepsone Tablet 100 mg

1. What is Lepsone Tablet 100 mg?

Lepsone Tablet 100 mg is an antibiotic and anti-inflammatory medication primarily used to treat leprosy, dermatitis herpetiformis, and certain bacterial infections. It is also used as a second-line treatment for Pneumocystis jirovecii pneumonia (PCP) in immunocompromised patients.

2. How does Lepsone Tablet 100 mg work?

Lepsone Tablet 100 mg works by inhibiting bacterial synthesis of dihydrofolic acid, a component essential for bacterial DNA replication and cell division. This bacteriostatic effect prevents the growth and spread of bacteria. It also has anti-inflammatory properties, which reduce skin irritation and inflammation.

3. What are the common uses of Lepsone Tablet 100 mg?

Lepsone Tablet 100 mg is commonly prescribed for:

  • Leprosy (Hansen’s disease)
  • Dermatitis herpetiformis
  • Pneumocystis jirovecii pneumonia (PCP)
  • Acne vulgaris
  • Autoimmune skin conditions

4. Is Lepsone Tablet 100 mg an antibiotic or anti-inflammatory drug?

Lepsone Tablet 100 mg serves as both an antibiotic and an anti-inflammatory drug. It treats bacterial infections by stopping bacterial growth and reduces skin inflammation in autoimmune skin conditions.

5. How is Lepsone Tablet 100 mg administered?

Lepsone Tablet 100 mg is usually taken orally in tablet form. In some cases, it is available as a topical gel for treating acne. The dosage and duration depend on the condition being treated and the patient’s medical history.

6. What is the typical dosage of Lepsone Tablet 100 mg?

The recommended dosage varies:

  • For leprosy: 50-100 mg once daily
  • For dermatitis herpetiformis: 50-300 mg daily, depending on severity
  • For Pneumocystis jirovecii pneumonia: 100 mg once daily for prevention
It’s essential to follow the doctor's instructions for dosage.

7. What are the side effects of Lepsone Tablet 100 mg?

Common side effects include:

  • Nausea
  • Vomiting
  • Dizziness
  • Headache
  • Skin rash
Severe side effects may include hemolytic anemia, liver damage, or Lepsone Tablet 100 mg hypersensitivity syndrome.

8. What is Lepsone Tablet 100 mg hypersensitivity syndrome?

Lepsone Tablet 100 mg hypersensitivity syndrome is a rare but potentially life-threatening reaction that typically occurs 4-6 weeks after starting the drug. Symptoms include fever, skin rash, liver inflammation, and organ dysfunction. Immediate medical attention is necessary if symptoms occur.

9. Can Lepsone Tablet 100 mg be used during pregnancy?

Lepsone Tablet 100 mg is typically avoided during pregnancy unless absolutely necessary. It can cross the placenta and cause hemolysis in newborns, particularly in mothers with glucose-6-phosphate dehydrogenase (G6PD) deficiency.

10. Can Lepsone Tablet 100 mg be used while breastfeeding?

Small amounts of Lepsone Tablet 100 mg can pass into breast milk. Although generally considered safe, monitoring the infant for symptoms of hemolysis or jaundice is recommended.

11. How long does it take for Lepsone Tablet 100 mg to work?

For leprosy and dermatitis herpetiformis, noticeable improvements may take several weeks to months. In acne treatment, results are typically visible within 8-12 weeks of consistent use.

12. Is Lepsone Tablet 100 mg effective against acne?

Yes, Lepsone Tablet 100 mg gel is used to treat moderate to severe acne. It reduces inflammation and clears clogged pores, making it effective in managing acne lesions.

13. Can Lepsone Tablet 100 mg be used in children?

Lepsone Tablet 100 mg can be prescribed to children for conditions like leprosy or Pneumocystis jirovecii pneumonia. The dosage is adjusted based on the child’s weight and health condition.

14. What precautions should be taken before using Lepsone Tablet 100 mg?

Before starting Lepsone Tablet 100 mg, it is essential to inform your doctor about:

  • Any allergies to Lepsone Tablet 100 mg or sulfa drugs
  • G6PD deficiency
  • Liver or kidney disease
  • Ongoing infections
Regular blood tests may be required during treatment.

15. Can Lepsone Tablet 100 mg cause anemia?

Yes, Lepsone Tablet 100 mg can cause hemolytic anemia, especially in people with G6PD deficiency. It is important to monitor blood cell levels through regular blood tests.

16. How should Lepsone Tablet 100 mg be stored?

Store Lepsone Tablet 100 mg at room temperature (20-25°C), away from moisture and light. Keep it in its original packaging and out of reach of children.

17. What should I do if I miss a dose of Lepsone Tablet 100 mg?

If you miss a dose, take it as soon as you remember. If it is close to the next scheduled dose, skip the missed dose. Do not double the dose to catch up.

18. Can Lepsone Tablet 100 mg interact with other medications?

Yes, Lepsone Tablet 100 mg may interact with:

  • Rifampin
  • Trimethoprim
  • Folic acid antagonists
  • Anticonvulsants
Inform your doctor about all medications you are taking.

19. Is Lepsone Tablet 100 mg used to treat malaria?

While Lepsone Tablet 100 mg has some antimalarial properties, it is not commonly used as a primary treatment for malaria. Other medications like chloroquine are preferred.

20. Can Lepsone Tablet 100 mg cause allergic reactions?

Yes, allergic reactions such as rash, itching, or swelling may occur. Severe reactions like Lepsone Tablet 100 mg hypersensitivity syndrome are rare but require immediate medical attention.

21. How long should Lepsone Tablet 100 mg be taken for leprosy?

Leprosy treatment with Lepsone Tablet 100 mg typically lasts for 6-12 months, often combined with other antibiotics like rifampin and clofazimine.

22. Can Lepsone Tablet 100 mg be used for fungal infections?

No, Lepsone Tablet 100 mg is not effective against fungal infections. It is specifically used to treat bacterial infections and inflammatory skin conditions.

23. Can Lepsone Tablet 100 mg be used in HIV patients?

Yes, Lepsone Tablet 100 mg is commonly used as a prophylactic treatment to prevent Pneumocystis jirovecii pneumonia (PCP) in HIV-positive patients with low CD4 counts.

24. What should be done in case of Lepsone Tablet 100 mg overdose?

In case of overdose, seek emergency medical attention. Symptoms of overdose may include severe nausea, dizziness, or difficulty breathing.

25. Can Lepsone Tablet 100 mg be stopped suddenly?

No, it is important to follow your doctor’s advice. Suddenly stopping Lepsone Tablet 100 mg may worsen the condition or lead to bacterial resistance.

26. Is it safe to consume alcohol while taking Lepsone Tablet 100 mg?

It is generally advised to avoid alcohol while taking Lepsone Tablet 100 mg, as it may increase the risk of liver damage and worsen side effects like dizziness and nausea.

27. Can Lepsone Tablet 100 mg be used for urinary tract infections (UTIs)?

No, Lepsone Tablet 100 mg is not typically used for treating urinary tract infections. It is more effective for skin infections, leprosy, and specific bacterial infections.

28. What is the role of Lepsone Tablet 100 mg in combination therapy for leprosy?

In leprosy treatment, Lepsone Tablet 100 mg is usually combined with rifampin and clofazimine as part of a multidrug therapy (MDT) regimen to prevent antibiotic resistance.

29. Does Lepsone Tablet 100 mg cause photosensitivity?

Yes, Lepsone Tablet 100 mg may increase skin sensitivity to sunlight, leading to sunburn or rash. It is advisable to use sunscreen and wear protective clothing during sun exposure.

30. Can Lepsone Tablet 100 mg be used to treat skin infections caused by Staphylococcus or Streptococcus?

Lepsone Tablet 100 mg is not the first-line treatment for bacterial skin infections caused by Staphylococcus or Streptococcus. Other antibiotics like penicillin or cephalosporins are preferred.

31. What is the difference between oral and topical Lepsone Tablet 100 mg?

Oral Lepsone Tablet 100 mg is used to treat systemic infections like leprosy, while topical Lepsone Tablet 100 mg (in gel form) is typically used for acne treatment and other localized skin conditions.

32. Can Lepsone Tablet 100 mg be used to treat rheumatoid arthritis?

Although not a primary treatment, Lepsone Tablet 100 mg has shown some effectiveness in treating autoimmune conditions like rheumatoid arthritis due to its anti-inflammatory properties.

33. What is the recommended monitoring while on Lepsone Tablet 100 mg therapy?

Patients on Lepsone Tablet 100 mg require regular blood tests to monitor:

  • Hemoglobin levels (to detect anemia)
  • White blood cell count
  • Liver function
  • Signs of methemoglobinemia

34. Can Lepsone Tablet 100 mg cause nerve damage?

Lepsone Tablet 100 mg does not typically cause nerve damage. However, untreated leprosy can lead to nerve damage, which may persist despite treatment.

35. What happens if Lepsone Tablet 100 mg is taken for a long time?

Long-term use of Lepsone Tablet 100 mg may increase the risk of hemolysis, liver damage, or neuropathy. Regular monitoring and follow-ups with a healthcare provider are essential.

36. Can Lepsone Tablet 100 mg cause gastrointestinal issues?

Yes, gastrointestinal symptoms such as nausea, vomiting, and abdominal pain are common side effects of Lepsone Tablet 100 mg. Taking it with food may help reduce these symptoms.

37. Is Lepsone Tablet 100 mg a sulfa drug?

Yes, Lepsone Tablet 100 mg is classified as a sulfone drug, which is a derivative of sulfa drugs. Patients allergic to sulfa medications may also react to Lepsone Tablet 100 mg.

38. How does Lepsone Tablet 100 mg affect patients with G6PD deficiency?

In individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency, Lepsone Tablet 100 mg can cause severe hemolytic anemia. A G6PD test is usually performed before starting treatment.

39. Can Lepsone Tablet 100 mg cause changes in skin color?

Prolonged use of Lepsone Tablet 100 mg may lead to skin discoloration or a bluish-gray tint, a condition called methemoglobinemia. Immediate medical attention is required if symptoms appear.

40. Can Lepsone Tablet 100 mg be used for fungal skin infections?

No, Lepsone Tablet 100 mg is not effective against fungal infections. Antifungal medications are recommended for treating fungal skin infections.

41. What is the duration of treatment with Lepsone Tablet 100 mg for dermatitis herpetiformis?

Lepsone Tablet 100 mg treatment for dermatitis herpetiformis may last several months to years, depending on the patient’s response. A gluten-free diet is often recommended alongside Lepsone Tablet 100 mg.

42. Does Lepsone Tablet 100 mg cause dizziness or drowsiness?

Yes, dizziness and drowsiness are potential side effects of Lepsone Tablet 100 mg. Avoid driving or operating machinery if you experience these symptoms.

43. Can Lepsone Tablet 100 mg affect fertility?

There is no conclusive evidence that Lepsone Tablet 100 mg directly affects fertility in men or women. However, consult your doctor if you are planning to conceive while on Lepsone Tablet 100 mg.

44. Is Lepsone Tablet 100 mg safe for elderly patients?

Lepsone Tablet 100 mg can be used in elderly patients but with caution. Due to age-related changes in liver and kidney function, dose adjustments and regular monitoring are often necessary.

45. What is the relationship between Lepsone Tablet 100 mg and Hansen’s disease?

Hansen’s disease, commonly known as leprosy, is one of the primary conditions treated with Lepsone Tablet 100 mg. It is part of the standard multidrug therapy for leprosy worldwide.

46. Can Lepsone Tablet 100 mg cause weight loss?

Weight loss is not a common side effect of Lepsone Tablet 100 mg. However, in some cases, severe gastrointestinal issues may lead to unintended weight loss. Notify your doctor if this occurs.

47. What should I do in case of an allergic reaction to Lepsone Tablet 100 mg?

In case of symptoms like rash, swelling, difficulty breathing, or severe dizziness, discontinue Lepsone Tablet 100 mg and seek emergency medical attention immediately.

48. Can Lepsone Tablet 100 mg be used for prophylaxis in organ transplant patients?

Yes, Lepsone Tablet 100 mg is sometimes used as a prophylactic drug to prevent Pneumocystis jirovecii pneumonia (PCP) in organ transplant recipients or immunocompromised patients.

49. Can Lepsone Tablet 100 mg cause liver damage?

Yes, Lepsone Tablet 100 mg may cause liver damage in some individuals. Signs of liver issues include yellowing of the skin or eyes, dark urine, and persistent abdominal pain. Liver function tests are recommended during treatment.

50. What should I do if I accidentally take too much Lepsone Tablet 100 mg?

If you suspect a Lepsone Tablet 100 mg overdose, seek immediate medical attention. Symptoms of overdose may include dizziness, headache, shortness of breath, and bluish skin discoloration (cyanosis).

Medical review

Last reviewed: 24 Jul 2026

Medically reviewed by:

This is general information, not personal medical advice. Consult a doctor before taking any medicine.

Taking medicines without doctor's advice can cause long-term problems.
Dr. Ishrat Jahan Munni

Dr. Ishrat Jahan Munni

Gynecologist & Obstetrics Specialist

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Prof. Dr. M Mujibul Hoque

Prof. Dr. M Mujibul Hoque

Skin, Allergy, Leprosy, Hair & Sexual Diseases Specialist

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Dr. Mariam Faruki Shati

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