Thiotepa (Systemic)
Before Using This MedicineIn deciding to use a medicine,
the risks of taking the medicine must be weighed against the good it will
do. This is a decision you and your doctor will make. For thiotepa, the following
should be considered:
Allergies - Tell your doctor if you have ever had any unusual or
allergic reaction to thiotepa.
Pregnancy - Tell your doctor if you are pregnant or if you intend
to have children. There is a chance that this medicine may cause birth defects
if either the male or female is using it at the time of conception or if it
is used during pregnancy. Studies have shown that thiotepa causes birth defects
in humans. In addition, many cancer medicines may cause sterility which could
be permanent. Although this is uncommon with this medicine, the possibility
should be kept in mind. Be sure that you have discussed this with your doctor before using this
medicine. It is best to use some kind of birth control while you are receiving
thiotepa. Tell your doctor right away if you think you have become pregnant
while receiving thiotepa.
Breast-feeding - Tell your doctor if you intend to breast-feed.
Because this medicine may cause serious side effects, breast-feeding is generally
not recommended while you are receiving it. It is not known whether thiotepa
passes into the breast milk.
Children - There is no specific information about the use of
thiotepa in children.
Older adults - Many medicines have not been tested in older people.
Therefore, it may not be known whether they work exactly the same way they
do in younger adults or if they cause different side effects or problems in
older people. There is no specific information about the use of thiotepa in
the elderly.
Other medicines - Although certain medicines should not be used
together at all, in other cases two different medicines may be used together
even if an interaction might occur. In these cases, your doctor may want to
change the dose, or other precautions may be necessary. When you are receiving
thiotepa, it is especially important that your health care professional know
if you are taking any of the following:
-
Antithyroid agents (medicine for overactive thyroid) or
-
Azathioprine (e.g., Imuran) or
-
Chloramphenicol (e.g., Chloromycetin) or
-
Colchicine or
-
Flucytosine (e.g., Ancobon) or
-
Interferon (e.g., Intron A, Roferon-A) or
-
Plicamycin (e.g., Mithracin) or
-
Zidovudine (e.g., Retrovir) or
-
If you have ever been treated with x-rays or cancer medicines - Thiotepa
may increase the effects of these medicines or radiation therapy on the blood
-
Probenecid (e.g., Benemid) or
-
Sulfinpyrazone (e.g., Anturane) - Thiotepa may increase the concentration
of uric acid in the blood, which these medicines are used to lower
Other medical problems - The presence of other medical
problems may affect the use of thiotepa. Make sure you tell your doctor if
you have any other medical problems, especially:
-
Chickenpox (including recent exposure) or
-
Herpes zoster (shingles) - Risk of severe disease affecting other
parts of the body
-
Gout (history of) or
-
Kidney stones (history of) - Thiotepa may increase levels of
uric acid in the body, which can cause gout or kidney stones
-
Infection - Thiotepa can reduce immunity to infection
-
Kidney disease or
-
Liver disease - Effects may be increased because of slower removal
of thiotepa from the body
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