This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Drinking alcohol can increase certain side effects of dicyclomine.
Avoid becoming overheated or dehydrated during exercise and in hot weather. Dicyclomine can decrease your sweating, which can lead to heat stroke in a hot environment.
Stop using dicyclomine and call your doctor right away if you have serious side effects such as confusion, hallucinations, unusual thoughts or behavior, fast or uneven heart rate, or if you urinate less than usual or not at all.
There are many other medicines that can interact with dicyclomine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.
Before taking this medicine
You should not take this medication if you are allergic to dicyclomine, or if you have:
problems with urination;
a bowel obstruction or severe constipation;
severe ulcerative colitis or toxic megacolon;
gastroesophageal reflux disease (GERD);
a serious heart condition or active bleeding;
glaucoma;
myasthenia gravis; or
if you are breast-feeding a baby.
To make sure you can safely take dicyclomine, tell your doctor if you have any of these other conditions:
ulcerative colitis;
an ileostomy or colostomy;
a nerve problem (such as numbness or tingling);
liver or kidney disease;
heart disease, congestive heart failure, high blood pressure, or a heart rhythm disorder;
hiatal hernia; or
an enlarged prostate.
FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.
Dicyclomine can pass into breast milk and can cause breathing problems or other life-threatening side effects in infants younger than 6 months of age. Do not breast feed a baby while taking this medication.
Older adults may be more likely to have side effects from  dicyclomine.
Dicyclomine should not be given to a child younger than 6 months old.
How should I take dicyclomine?
Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.
Dicyclomine is usually taken 4 times each day. Your doctor may occasionally change your dose to make sure you get the best results.
Take this medicine with a full glass of water.
Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
Talk with your doctor if your symptoms do not improve after 2 weeks of treatment.
Store at room temperature away from moisture and heat.
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include nausea, vomiting, dilated pupils, weakness or loss of movement in any part of your body, trouble swallowing, fainting, or seizure (convulsions).
