Compare Myfortic vs. Imuran

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Imuran (Azathioprine)

Prescription only
Prevents rejection of a transplanted organ.

Myfortic (mycophenolic acid) is good at preventing organ transplant rejection, but you’ll need regular blood tests.

Prevents organ rejection and relieves joint pain and inflammation.

Imuran (Azathioprine) is an effective medication for the treatment of rheumatoid arthritis and transplant rejection, but comes with a heavy list of side effects.

Upsides
  • Myfortic (mycophenolic acid) is a first-choice medicine for preventing organ rejection since it lowers the risk of rejection and doesn't hurt the kidneys or liver like other medicines in its class.
  • By taking Myfortic (mycophenolic acid), your doctor might be able to lower the dose of your other anti-rejection medicines that have more side effects.
  • Causes less diarrhea, nausea, and vomiting compared to CellCept.
  • Imuran (Azathioprine) has proven to be effective in the treatment of rheumatoid arthritis.
  • Imuran (Azathioprine) decreases the pain, stiffness, and swelling that most people have with rheumatoid arthritis.
  • You can still get vaccinated for the flu while taking Imuran (Azathioprine).
  • Drinking alcohol is okay while taking Imuran (Azathioprine).
  • Most side effects are temporary.
Downsides
  • You'll need regular blood tests, especially in the beginning, to make sure Myfortic (mycophenolic acid) isn't affecting your body in a bad way.
  • You might need to take other medicines to control your blood pressure, blood sugar, or cholesterol while on Myfortic (mycophenolic acid).
  • If you take Imuran (Azathioprine) for rheumatoid arthritis, you'll likely need to take additional medications to control your symptoms.
  • While taking Imuran (Azathioprine), you will have to get your blood tested once a week for the first month, every other week for the second and third month, and once every month after that.
  • Along with other side effects, your hair may begin to change color or fall out when you first start taking Imuran (Azathioprine), but this is usually temporary.
  • You'll likely have to take additional medications, like methotrexate to keep your rheumatoid arthritis in remission.
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Used for
Dosage forms
  • Extended-release pill
  • Pill
Price
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Reviews
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Side effects
25possible side effects
  • Constipation
    38%
  • Nausea
    28%
  • Urinary tract infection
    28%
  • Diarrhea
    24%
  • Trouble sleeping
    24%
  • Vomiting
    23%
  • Upset stomach
    23%
  • Low red blood cells
    22%
  • Cytomegalovirus (CMV) infection
    20%
  • Low white blood cells
    19%
  • High blood pressure
    18%
  • Swelling
    17%
  • High blood creatinine (marker of poorer kidney function)
    15%
  • Pain in upper part of stomach
    14%
  • Fever
    13%
  • High blood uric acid
    13%
  • Low blood potassium
    13%
  • Headache
    13%
  • High blood lipids (fats)
    12%
  • Back pain
    12%
  • Tremor
    12%
  • Low blood calcium
    11%
  • Low blood phosphorus
    11%
  • Gas
    10%
  • Joint pain
    7%
See more detailed side effects
2possible side effects
  • Infections
    20%
  • Leukopenia <2500 cells/mm3
    16%
See more detailed side effects
Risks and risk factors
  • Harm to unborn baby
    • Sexually active women of childbearing age
  • Serious infections
    • Taking other immunosuppressants
    • Age 60 or older
    • Weak immune system
  • Blood disorders
  • Cancer
    • Taking Myfortic (mycophenolic acid) for a long time
    • Prolonged exposure to sunlight
    • UV light
See more detailed risks and warnings
  • Cancer
  • Decreased blood cells
  • Increased risk for infection
  • Harm to fetus
    • Sexually active men and women
    • Pregnant women
    • Child-bearing women
See more detailed risks and warnings