By Axcan Pharma

What is this medication for?

Dicyclomine belongs to the class of medications called antispasmodics. It is used to treat irritable bowel syndrome, spastic colon, and colitis. It works by relieving muscle spasms in the bowel.

Your doctor may have suggested this medication for conditions other than those listed here. As well, some forms of this medication may not be used for all of the conditions discussed here. If you are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.

Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.

What form(s) does this medication come in?

Bentyl® is available as:

  • capsules
    • 10 mg
  • tablets
    • 20 mg
  • syrup
    • 10 mg per 5 mL
  • injection
    • 10 mg per mL
  • injection (preservative free)
    • 10 mg per mL
Some medications may have other generic brands available. Always ask your doctor or pharmacist about the safety of switching between brands of the same medication.

How should I use this medication?

The usual starting adult dose for tablets and capsules is 20 mg, taken 4 times daily. This dose should be increased after 1 week to 40 mg, taken 4 times daily, unless side effects limit this change in dose. There is no information on the safety of doses over 80 mg per day for longer than 2 weeks. For adults who cannot take medication by mouth, an injection form of dicyclomine is available. The usual dose is 80 mg per day in 4 equally divided doses, injected into a muscle. You should not use the injection form of dicyclomine for longer than 1 or 2 days.

For children aged 2 to 12 years, the usual dose is 10 mg taken 3 to 4 times daily.

For infants aged 6 months to 2 years, the usual dose is 5 mg to 10 mg taken 3 to 4 times daily, 15 minutes before feeding. The maximum dose is 40 mg per day. Syrup should be diluted with an equal amount of water.

You should see the full effects of this medication within 2 weeks of the start of treatment. If you do not see the expected changes in your condition after 2 weeks of therapy, or cannot tolerate doses of at least 80 mg per day, you should stop taking this medication and discuss alternative treatments with your doctor.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important that this medication be taken exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Who should NOT take this medication?

Dicyclomine should not be used by anyone who:

  • is under 6 months of age
  • is breast-feeding
  • is experiencing severe bleeding
  • has a blockage of the stomach or intestines
  • has a blockage of the urinary tract
  • has a known or suspected allergy to dicyclomine or to any of the ingredients of the medication
  • has glaucoma
  • has heart problems
  • has myasthenia gravis
  • has reflux esophagitis
  • has severe ulcerative colitis
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The contents of this health site are for informational purposes only. Always seek the advice of your physician or other qualified healthcare provider regarding any questions you may have about a medical condition.

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