Cyclosporine Oral Liquid 100 mg/mL
1. DESCRIPTION / WHAT IS IT?
Cyclosporine Oral Liquid 100 mg/mL is a liquid formulation of the potent immunosuppressant drug cyclosporine.1 The “100 mg/mL” indicates that each milliliter of the solution contains 100 milligrams of cyclosporine.2 This oral solution is designed for precise dosing, especially for patients who cannot swallow capsules or require highly individualized or small doses.
Like the capsule forms, oral solutions of cyclosporine also come in modified (e.g., Neoral Oral Solution, or its generics) and non-modified (e.g., Sandimmune Oral Solution) formulations.3 The modified formulation is designed to form a microemulsion when mixed with water or certain beverages, leading to more consistent and predictable absorption, which is crucial for a drug with a narrow therapeutic window.4 The non-modified version has more variable absorption. The modified formulations are generally preferred in clinical practice today.5
It is a calcineurin inhibitor, a class of highly effective immunosuppressants.6
2. NATURE (Pharmacology and Mechanism of Action)
- Classification: Immunosuppressant, Calcineurin Inhibitor.7
- Mechanism of Action: Cyclosporine works by selectively and powerfully suppressing the activity of T-lymphocytes, which are key components of the immune system responsible for cell-mediated immunity (e.g., organ rejection).8 The process involves:
- Cyclosporine binding to an intracellular protein called cyclophilin.9
- This complex then inhibits calcineurin, an enzyme vital for activating a specific transcription factor (NF-AT).10 This factor is crucial for the production of various inflammatory cytokines, particularly interleukin-2 (IL-2).
- By blocking the synthesis and release of IL-2 and other related cytokines, cyclosporine effectively prevents the activation, proliferation, and differentiation of T-cells.11 This results in a potent suppression of the immune response, which is vital for preventing the body from rejecting transplanted organs or from overreacting in autoimmune diseases.12
3. ADVANTAGES
- Precise Dosing: The liquid formulation allows for very precise dose adjustments, which is critical for cyclosporine due to its narrow therapeutic index. This is particularly beneficial for pediatric patients, those with varying body weights, or those requiring small dose increments/decrements.
- Flexibility in Administration: Ideal for patients who have difficulty swallowing capsules, such as children or elderly individuals, or those with feeding tubes.
- Potent Immunosuppression: Delivers powerful immunosuppressive effects crucial for preventing organ rejection and managing severe autoimmune diseases.
- Improved Transplant Outcomes: Cyclosporine’s role has been transformative in organ transplantation, significantly improving graft survival and patient quality of life.
- Steroid-Sparing Potential: Can help reduce the reliance on high-dose corticosteroids, thereby mitigating steroid-related side effects.
4. USES (Indications)
Cyclosporine Oral Liquid 100 mg/mL is used for conditions requiring significant and sustained immune suppression:
- Organ Transplant Rejection Prophylaxis: A primary indication.13 It is used in combination with other immunosuppressive agents to prevent the body’s immune system from rejecting transplanted solid organs (e.g., kidney, liver, heart, pancreas).14
- Severe Autoimmune Diseases: When other conventional treatments have failed or are not tolerated, it is used for:
- Severe Active Rheumatoid Arthritis: For patients with severe, active, and progressive disease that has not responded adequately to other disease-modifying antirheumatic drugs (DMARDs).
- Severe Psoriasis (Plaque Psoriasis): For adults with severe, disabling, or recalcitrant plaque psoriasis who have not responded to other systemic therapies or for whom other therapies are contraindicated.15
- Nephrotic Syndrome: Especially in cases of steroid-dependent or steroid-resistant nephrotic syndrome, such as Minimal Change Disease (MCD) and Focal Segmental Glomerulosclerosis (FSGS).16
- Severe Atopic Dermatitis (Eczema): For chronic, severe cases in adults that are refractory to conventional treatments.
5. STORAGE
- Store Cyclosporine Oral Liquid at room temperature, typically between 20°C to 25°C (68°F to 77°F).17
- Keep the bottle tightly closed in its original container to protect it from moisture, heat, and direct light.18
- It is crucial not to refrigerate or freeze cyclosporine oral solutions, as this can affect the stability and integrity of the formulation, potentially leading to precipitation or altered absorption characteristics.19
- Discard any unused medicine after 2 months (or as specified by the manufacturer, typically after opening) as the stability may decrease.
- Keep out of reach of children.