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03285.txt
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1994-01-17
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$Unique_ID{BRK03285}
$Pretitle{}
$Title{phenylbutazone}
$Subject{Butazolidin Geigy Nonsteroidal anti-inflammatory analgesic
phenylbutazone inflammation pain redness swelling arthritis thrombophlebitis
mechanism sensitivity pain}
$Volume{}
$Log{}
Copyright (C) 1993 Publications International, Ltd.
phenylbutazone
------------------------------------------------------------------------------
BRAND NAMES (Manufacturers)
Butazolidin (Geigy)
phenylbutazone (various manufacturers)
TYPE OF DRUG
Nonsteroidal anti-inflammatory analgesic
INGREDIENT
phenylbutazone
DOSAGE FORMS
Tablets (100 mg)
Capsules (100 mg)
STORAGE
Phenylbutazone tablets and capsules should be stored at room temperature
in tightly closed containers.
USES
Phenylbutazone is used to reduce inflammation (pain, redness, and
swelling) due to arthritis or thrombophlebitis when other anti-inflammatory
agents have been unsuccessful. It is not clearly understood how
phenylbutazone works, but it is thought to act by interfering with the body's
inflammatory mechanism or by decreasing the sensitivity of the body's pain
mechanism.
TREATMENT
In order to avoid stomach upset, you can take phenylbutazone with food or
with a full glass of water or milk. Ask your doctor if you can take
phenylbutazone with an antacid.
Phenylbutazone tablets should be swallowed whole. Do not break or crush
them.
If you miss a dose of this medication and you are taking it once or twice
a day, take the missed dose as soon as possible, unless it is almost time for
the next dose. In that case, do not take the missed dose at all; just return
to your regular dosing schedule. Do not double the next dose.
If you are taking phenylbutazone three or more times per day and you miss
a dose, take the missed dose right away (if you remember within an hour of the
correct time); then take the next dose as scheduled. If more than an hour has
passed, however, do not take the missed dose at all; just return to your
regular schedule. Do not double the next dose.
SIDE EFFECTS
Minor.
Abdominal pain, bloating, constipation, diarrhea, drowsiness, gas,
headache, heartburn, indigestion, irritability, nausea, numbness, vomiting, or
weakness. These side effects should disappear as your body adjusts to the
medication.
You may experience constipation when taking this drug. To relieve
constipation, increase the amount of fiber in your diet (fresh fruits and
vegetables, salads, bran, and whole-grain breads), exercise, and drink more
water (unless your doctor directs you to do otherwise).
Major.
Tell your doctor about any side effects that are persistent or
particularly bothersome. IT IS ESPECIALLY IMPORTANT TO TELL YOUR DOCTOR about
bloody or black, tarry stools; blurred vision; confusion; depression;
difficulty in breathing; difficulty in hearing; difficult or painful
urination; fatigue; fever; itching; mouth sores; rash; ringing in the ears;
severe abdominal pain; sore throat; swelling of the ankles; tremors; unusual
bleeding or bruising; weight gain of more than three pounds within a week; or
yellowing of the eyes or skin.
INTERACTIONS
Phenylbutazone interacts with several other types of medications:
1. It can increase the kidney side effects of penicillamine; increase
skin reactions to chloroquine, gold compounds, and hydroxychloroquine; and
increase the effects on the blood of antineoplastic agents (anticancer
medicines), chloramphenicol, colchicine, gold compounds, pyrimethamine, and
trimethoprim.
2. The gastrointestinal side effects of phenylbutazone analgesic can be
increased by the use of alcohol or anti-inflammatory medications.
3. Phenylbutazone can decrease the blood levels and effectiveness of
digitoxin, hexobarbital, and cortisone.
4. Cholestyramine can decrease the absorption of phenylbutazone from the
gastrointestinal tract, which can decrease its effectiveness.
5. The active blood levels and side effects of oral anticoagulants (blood
thinners, such as warfarin), insulin, oral antidiabetic medicines, sulfonamide
antibiotics, sodium valproate, methotrexate, sulfonylurea drugs, and phenytoin
can possibly be increased by the use of phenylbutazone.
6. Phenylbutazone can decrease the elimination of lithium through the
kidneys, which can lead to an increased risk of side effects.
BE SURE TO TELL YOUR DOCTOR about any medications you are currently
taking, especially those listed above.
WARNINGS
* Be sure to tell your doctor about unusual or allergic reactions you
have had to any medications, especially to phenylbutazone or other
nonsteroidal anti-inflammatory medications (such as aspirin, diclofenac,
diflunisal, fenoprofen, flurbiprofen, ibuprofen, indomethacin, ketoprofen,
meclofenamate, mefenamic acid, naproxen, oxyphenbutazone, sulfinpyrazone,
sulindac, or tolmetin).
* Be sure to tell your doctor if you now have or if you have ever had any
of the following medical disorders: anemia, blood disorders, heart disease,
hypertension, inflamed salivary glands, kidney disease, liver disease, mouth
sores, pancreatitis, peptic ulcers, polymyalgia rheumatica, stomach problems,
temporal arteritis, or thyroid disease.
* Use of this drug has been associated with leukemia, although there is
no definite proof that it causes the disease.
* If phenylbutazone makes you dizzy or drowsy, do not take part in any
activity that requires alertness, such as driving a car or operating
potentially dangerous machinery. Also, be especially cautious going up and
down stairs.
* Because phenylbutazone has been shown to prolong your bleeding time, it
is very important that you tell your doctor or dentist that you are taking
this medication before having surgery or any other type of medical or dental
treatment.
* This medication has been shown to cause serious blood disorders.
Therefore, it should never be used for trivial aches or pains.
* This drug should be used for a short time only. Follow your doctor's
directions exactly, and never exceed the recommended dosage.
* Some of these products contain the color additive FD&C Yellow No. 5
(tartrazine), which can cause allergic-type reactions (shortness of breath,
rash, or fainting) in certain susceptible individuals.
* Be sure to tell your doctor if you are pregnant. Although studies in
humans have not been conducted, unwanted effects have been observed in the
offspring of animals that received large doses of this drug during pregnancy.
If taken late in pregnancy, phenylbutazone can also prolong labor. Also, tell
your doctor if you are breast-feeding an infant. Small doses of
phenylbutazone pass into breast milk.
----------------
The material contained here is "FOR INFORMATION ONLY" and should not replace
the counsel and advice of your personal physician. Promptly consulting your
doctor is the best path to a quick and successful resolution of any medical
problem.