CellCept should be taken exactly as prescribed by a healthcare provider. It is usually administered orally, and the dosage may vary depending on the individual’s medical condition, response to treatment, and other factors.
Key guidelines for using CellCept:
- Oral administration: CellCept can be taken with or without food. However, taking it with food may help reduce stomach upset.
- Swallow whole: The tablets should be swallowed whole, not crushed or chewed, to ensure the correct dose.
- Oral suspension: If you are taking the liquid form of CellCept, it should be shaken well before each dose. Use the supplied measuring device to ensure an accurate dose.
- Consistency: Take the medication at the same times each day to help remember your doses.
- Missed dose: If you miss a dose, take it as soon as you remember, unless it is almost time for your next dose. Never take two doses at once to make up for a missed dose.
CellCept works by inhibiting the activity of an enzyme called inosine monophosphate dehydrogenase (IMPDH). This enzyme is crucial for the synthesis of purines, which are the building blocks of DNA. By inhibiting IMPDH, CellCept limits the production of T-lymphocytes (T-cells), which are immune cells responsible for attacking foreign tissues or the body’s own cells in autoimmune diseases.
Since T-cells rely on DNA synthesis for proliferation and function, the suppression of T-cell proliferation is key to preventing organ rejection after a transplant and managing autoimmune diseases. Essentially, by inhibiting T-cell activation and proliferation, CellCept reduces the immune response, making it less likely that the body will attack transplanted organs or its own tissues in autoimmune conditions.
CellCept, like other immunosuppressive drugs, can cause a range of side effects. Some common and serious side effects include:
Common Side Effects:
- Diarrhea
- Nausea and vomiting
- Abdominal pain
- Headache
- Loss of appetite
Serious Side Effects:
- Increased risk of infections: Due to immune system suppression, infections can become more frequent or severe.
- Low blood cell counts: Anemia, low white blood cell count, and low platelets can lead to fatigue, increased risk of infections, and bleeding.
- Liver toxicity: Signs may include yellowing of the skin or eyes (jaundice), dark urine, or stomach pain.
- Malignancy: Long-term use can increase the risk of cancers like lymphoma or skin cancers.
- Severe gastrointestinal problems: Such as bleeding or ulcers.
- Pregnancy and breastfeeding: CellCept is contraindicated in pregnancy due to its teratogenic effects. Women should use effective contraception during treatment and for 6 weeks after discontinuing the drug. It is not recommended for breastfeeding.
- Infections: Regular monitoring for infections is essential, and patients should avoid contact with individuals who have known infections.
- Renal function: CellCept may be adjusted for patients with impaired kidney function, as its clearance can be affected.
Vaccinations: Live vaccines should be avoided while taking CellCept due to the risk of infection.
CellCept can interact with several medications, which can either reduce its effectiveness or increase the risk of side effects. Some of the most significant drug interactions include:
- Azathioprine: Both CellCept and azathioprine are immunosuppressive agents, and taking them together can increase the risk of severe infections and blood disorders.
- Antacids: Antacids containing magnesium or aluminum can reduce the absorption of mycophenolate mofetil and should be avoided. If necessary, antacids should be taken several hours apart from CellCept.
- Cholestyramine and colestipol (bile acid sequestrants): These can reduce the absorption of mycophenolate mofetil, reducing its effectiveness.
- Certain antiviral medications (e.g., acyclovir or ganciclovir): These may increase the risk of bone marrow suppression when taken with CellCept.
- Corticosteroids (e.g., prednisone): When combined with CellCept, corticosteroids may increase the risk of infections and other side effects.
It’s important to inform your doctor of any other medications, supplements, or herbs you are taking to avoid harmful interactions.
The usual adult dosage for organ transplant patients is 1,000 mg twice daily. For autoimmune conditions like lupus nephritis, the starting dose is usually 1,000 mg twice daily, but this may be adjusted based on the response and side effects. For children, the dosage will be based on body weight.
CellCept is a prescription-only medication and should only be prescribed by a healthcare professional who is familiar with immunosuppressive therapy. The doctor will monitor the patient’s health regularly, including kidney and liver function, blood cell counts, and the presence of infections.
1. What is CellCept used for?
Answer: CellCept is used to prevent organ rejection in transplant patients, especially kidney, heart, and liver transplants.
2. How does CellCept work?
Answer: It suppresses the immune system by inhibiting the growth of white blood cells that cause organ rejection.
3. Can CellCept be used for autoimmune diseases?
Answer: While primarily for transplant, it may be prescribed off-label for autoimmune conditions like lupus.
4. How is CellCept administered?
Answer: It is available as oral capsules, tablets, and intravenous infusion.
5. What are common side effects of CellCept?
Answer: Side effects include diarrhea, nausea, vomiting, headache, and increased risk of infections.
6. Is it safe to take CellCept during pregnancy?
Answer: No, CellCept can cause birth defects and should be avoided during pregnancy.
7. How long does it take for CellCept to work?
Answer: It may take several weeks to see the full effect after starting treatment.
8. Can CellCept cause increased risk of infections?
Answer: Yes, it suppresses the immune system, increasing infection risk.
9. Does CellCept affect vaccination schedules?
Answer: Yes, live vaccines should be avoided during CellCept therapy.
10. Should I avoid certain foods while on CellCept?
Answer: Avoid grapefruit and grapefruit juice, which may interfere with the drug’s metabolism.
11. Can CellCept cause cancer?
Answer: Long-term use may increase the risk of lymphoma and skin cancer.
12. How should I store CellCept?
Answer: Store at room temperature away from moisture and heat.
13. Can I take CellCept with other immunosuppressants?
Answer: Yes, often CellCept is used with other drugs, but only under strict medical supervision.
14. What should I do if I miss a dose of CellCept?
Answer: Take it as soon as you remember unless it’s close to the next dose—do not double dose.
15. Can CellCept cause gastrointestinal bleeding?
Answer: Rarely, but serious GI issues can occur; report severe stomach pain or bleeding.
16. Is regular blood testing required with CellCept?
Answer: Yes, frequent monitoring of blood counts and kidney function is essential.
17. Can CellCept affect fertility?
Answer: It may impair fertility in both men and women.
18. What should I tell my doctor before starting CellCept?
Answer: Inform about infections, pregnancy, allergies, and current medications.
19. Are there any drug interactions with CellCept?
Answer: Yes, especially with antacids, antibiotics, and other immunosuppressants.
20. Can I stop taking CellCept abruptly?
Answer: No, stopping abruptly can cause organ rejection; always follow doctor’s instructions.