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glycopyrrolate (gli co PIE
ro late)
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Robinul
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1 mg
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2 mg Forte
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This drug is available in a generic form only as an
Injectable.
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What is glycopyrrolate?
This drug acts on the muscle in the wall of the gut and
also the urinary bladder. It relaxes the muscle and prevents
spasms from occurring. It also can slightly reduce the
production of stomach acid.
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What is it used for?
The main role of this drug is to prevent painful spasm of
the gut and urinary bladder. The following conditions may be
helped: diarrhea, irritable or spastic bowel,
diverticulosis, colic and bladder spasm. It is seldom used
in treating peptic ulcers since there are much better drugs
now available to reduce stomach acid and heal ulcers.
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How do I take it?
Follow your physician's instructions carefully. Take
glycopyrrolate 30 to 60 minutes before eating for best
results. If you also take an antacid, take the antacid after
the meal. Taking an antacid at the same time as
glycopyrrolate can interfere with the absorption of this
drug. Store at room temperature in a tightly sealed
container. 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 known food interactions with glycopyrrolate.
This drug can cause constipation which can be prevented by
using foods rich in fiber and bran. Alcohol should be used
with caution or avoided completely because the combination
may cause excessive sedation.
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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. Because this is a synthetic drug and falls
into a class called quaternary ammonium compounds, it
differs in some ways from the other anticholinergics such as
hyoscyamine (Levsin) and dicyclomine (Bentyl). The
manufacturer notes that there are no known drug interactions
but it may be wise to note the interactions with other drugs
in this class.
Interactions with this drug may occur with the following:
- monoamine oxidase (MAO) inhibitors (Nardil,
Parnate)
- sedatives (Ambien, Dalmane, Restoril)
- antidepressants (Haldol, Elavil)
- antacids
- antihistamines (Benadryl)
- cimetidine (Tagamet)
- prednisone
- digoxin (Lanoxin)
- metoclopramide (Reglan)
- thiazide diuretics (Dyazide,
hydrochlorothiazide)
- amantadine (Symmetrel)
- cardiac rhythm regulators (Pronestyl, quinidine)
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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, the following disorders may be a problem:
- glaucoma
- prostate enlargement - BPH
- hypertension (high blood pressure)
- congestive heart failure
- severe ulcerative colitis where bowel movements have
stopped
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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 and
itching. Of course, a personshould not take glycopyrrolate
if there has been a previous reaction to this or other
antispasmodic drugs.
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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. Glycopyrrolate is ranked B. Always
consult your physician before taking any drug during or when
planning pregnancy.
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What are the effects on sexual function?
Glycopyrrolate can cause impotence. In nursing mothers it
can cause suppression of breast milk.
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Are there other precautions?
- Glycopyrrolate may make you dizzy, drowsy or blur
your vision. Do not drive or operate hazardous machinery
while taking this medication until the effects of the
drug have been determined.
- This medication may decrease your ability to
perspire. Do not become overheated in extremely hot
weather or during exercise or other activities, as heat
stroke may occur.
- Some mental changes have occasionally been reported
in individuals who are sensitive to this group of drugs.
Symptoms include confusion, short-term memory loss,
hallucinations or agitation. These symptoms usually
resolve within 12 to 48 hours after discontinuation of
the drug.
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How long is it safe to take glycopyrrolate?
The side effects are usually the limiting factor in the
length of use of glycopyrrolate. As long as the side effects
are tolerable or there is no change in the intensity of the
side effects, the drug can be used long-term with physician
supervision.
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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 glycopyrrolate, the following are the observed side
effects:
Minor:
- headache
- drowsiness
- dizziness
- confusion
- blurred vision
- rapid heartbeat
- dry mouth
- nausea
- vomiting
- rash
- constipation
Major:
- difficult urination
- difficulty in focusing your eyes
- severe diarrhea
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A physician's comment...
This drug relieves symptoms. It does not cure an
underlying disorder. It can be used long-term if there are
no side effects. Some people have problems with constipation
while taking this drug. The addition of fiber to the diet is
helpful.
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Posted: July 1998
Irritable Bowel
Syndrome | High
Fiber Diet
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