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diphenoxylate (die fen OX
al ate)
atropine (AT tro peen)
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Lomotil
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2.5 mg
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Lomotil is also available as a Liquid.
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This drug is available in a generic form.
This preparation consists of these 2 different drugs. It is
a combination.
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What is diphenoxylate/atropine?
This drug is a mixture of two medications, each of which
can slow the bowel action. It has been around a long time
and has a good safety record. However, diphenoxylate is
derived from narcotics and, while it does not have any pain
relieving or addiction problems, it is not recommended for
chronic use.
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What is it used for?
The drug is used to treat diarrhea. It does not cure any
condition. It simply slows the bowel.
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How do I take it?
Follow your physician's instructions carefully. It may be
taken on an empty stomach or with food or milk. Store in a
tightly closed container away from light and moisture. Keep
the liquid from freezing. Keep all medications away from
children. Never share your medications with anyone else.
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What do I do for a missed dose?
If you miss a dose of this medicine, take it as soon as
possible. If it is almost time for your next dose, skip the
missed dose and return to your regular schedule. Do not
double up on this medication.
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Are there interactions with food or beverages?
There are no interactions with food or beverages but
caffeine, which is found in coffee, tea, cola and chocolate,
can aggravate diarrhea and should be avoided. This medicine
may intensify the effects of alcohol which should be avoided
or used with caution.
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Are there interactions with other drugs?
An interaction generally means that one drug may increase
or decrease the effect of another drug. Also, the more
medications a person takes, the more likely there will be a
drug interaction.
Interactions with this drug may occur with the following:
- sedatives
- barbiturates
- anti-depressants (Elavil, Prozac, Paxil)
- tranquilizers (Valium, Xanax)
- monoamine oxidase (MAO) inhibitors (Nardil,
Parnate)
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Is there a problem if I have another disorder or
disease?
At times, a drug may have a different or enhanced effect
when other diseases are present. At other times, the drug
may worsen or effect another disease. With this drug
long-term use with severe chronic liver disease or cirrhosis
may be a problem.
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What about allergies?
People who have known allergies or asthma may be at an
increased risk for a reaction from any new medication. The
physician should always know a patient's allergy history.
Signs of an allergic reaction are skin rash, hives or
itching. Of course, a person should not take
diphenoxylate/atropine if there has been a previous reaction
to this or a similar drug.
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What if I'm pregnant, considering pregnancy or
breast-feeding?
Most females now know that, if possible, no drug,
including alcohol, should be taken during pregnancy or
lactation. The potential danger, of course, is an injury to
the baby. However, some drugs are much safer than others in
this regard. So, the FDA has a grading system for each drug
which reflects what is known medically. It ranks drugs from
A, where medical studies show no evidence for danger to the
fetus or mother, to B, C, D and X, where the medical
evidence indicates that the risk to the fetus outweighs any
benefit to the mother. Diphenoxylate/atropine is ranked C.
Always consult your physician before taking any drug during
or when planning pregnancy.
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What are the effects on sexual function?
There are no known adverse effects on sexual function.
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Are there other precautions?
- Diphenoxylate/atropine may cause drowsiness or
dizziness so do not drive or operate hazardous machinery
until the effects of the drug have been determined.
- It is not recommended for children under two years of
age.
- This drug can cause dry mouth. Sucking on hard candy
or chewing gum may relieve this problem.
- Be sure to drink plenty of fluids to replace lost
body fluids. Diarrhea that is caused by antibiotics such
as Ceclor, erythromycin or tetracycline can worsen when
taking these medications. Check with your physician
before taking this drug if you are on an antibiotic.
- Avoid long-term use as diphenoxylate/atropine may
cause mild dependency.
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How long is it safe to take
diphenoxylate/atropine?
Generally, it is safe to take this combination long-term
although drug dependency may become a problem. Once the
diarrhea is under control, the dosage should be reduced.
Improvement should be seen within 48 hours. If diarrhea
persists after you have taken four tablets daily for 10
days, the drug likely is not effective for you. Check
with your physician.
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How about side effects?
Adverse reactions can occur with any drug, even
over-the-counter medications. Some of these are mild such as
a stomach upset, which may be avoided by taking the
medication with food. Minor reactions may go away on their
own but if they persist, contact the physician. For major
reactions, the patient should contact the physician
immediately.
For diphenoxylate/atropine, the following are the
observed side effects:
Minor:
- headache
- dizziness
- drowsiness
- blurred vision
- dry mouth
- constipation
- difficult urination
- rash
- itching
Major:
- severe stomach pain
- severe nausea
- vomiting
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A physician's comment...
This drug is an old standby for treating diarrhea. It
should be kept in mind that the cause of diarrhea should
always be sought. Since the drug is derived from narcotics,
it should not be used in high doses or for prolonged periods
of time. For mild chronic diarrhea, a high fiber diet may be
helpful.
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Posted: July 1998
Diarrhea
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Fiber Diet
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