Adult Medication

Brand Names: US


Brand Names: Canada

Bentylol; Dicyclomine Hydrochloride Injection; Formulex; Jamp-Dicyclomine; Protylol; Riva-Dicyclomine

What is this drug used for?

  • It is used to treat GI (gastrointestinal) spasms.
  • It is used to treat irritable bowel syndrome.
  • It may be given to you for other reasons. Talk with the doctor.

What do I need to tell my doctor BEFORE I take this drug?

For all patients taking this drug:

  • If you have an allergy to dicyclomine or any other part of this drug.
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If you have any of these health problems: Bowel block, heart problems due to bleeding, glaucoma, myasthenia gravis, reflux esophagitis, slow moving GI (gastrointestinal tract), trouble passing urine, or very bad ulcerative colitis.
  • If you are breast-feeding. Do not breast-feed while you take this drug.


  • If your child is younger than 6 months of age. Do not give this drug to an infant younger than 6 months of age.
This is not a list of all drugs or health problems that interact with this drug.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take this drug?

All products:

  • Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
  • Avoid driving and doing other tasks or actions that call for you to be alert until you see how this drug affects you.
  • Talk with your doctor before you drink alcohol or use other drugs and natural products that slow your actions.
  • Wear sunglasses. Sunlight may bother your eyes.
  • Be careful in hot weather or while being active. Drink lots of fluids to stop fluid loss.
  • If you are 65 or older, use this drug with care. You could have more side effects.
  • Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.

All oral products:

  • Do not take antacids at the same time as this drug. Talk with your doctor.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Fever.
  • Very bad dizziness or passing out.
  • Feeling confused.
  • Change in speech.
  • Trouble swallowing or speaking.
  • Change in balance.
  • Change in eyesight.
  • Not able to pass urine.
  • Loose stools (diarrhea).
  • Very hard stools (constipation).
  • Fast or slow heartbeat.
  • A heartbeat that does not feel normal.
  • Hallucinations (seeing or hearing things that are not there).
  • Memory problems or loss.
  • Mood changes.

What are some other side effects of this drug?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
  • Dizziness.
  • Feeling sleepy.
  • Blurred eyesight.
  • Upset stomach.
  • Feeling nervous and excitable.
  • Feeling tired or weak.
  • Dry mouth.
  • Dry skin.
  • Hard stools (constipation).
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best taken?

Use this drug as ordered by your doctor. Read all information given to you. Follow all instructions closely.

All products:

  • Keep taking this drug as you have been told by your doctor or other health care provider, even if you feel well.
  • Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.

All oral products:

  • Take with or without food.


  • Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, ask the pharmacist for a device to measure this drug.


  • It is given as a shot into a muscle.
  • Your doctor may teach you how to give the shot.
  • Do not use if the solution is cloudy, leaking, or has particles.
  • Do not use if solution changes color.
  • Only give this drug for a short time.
  • Throw away needles in a needle/sharp disposal box. Do not reuse needles or other items. When the box is full, follow all local rules for getting rid of it. Talk with a doctor or pharmacist if you have any questions.

What do I do if I miss a dose?

  • Take a missed dose as soon as you think about it.
  • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
  • Do not take 2 doses at the same time or extra doses.

How do I store and/or throw out this drug?

All oral products:

  • Store at room temperature.
  • Protect tablets from light.
  • Store in a dry place. Do not store in a bathroom.


  • Most of the time, this drug will be given in a hospital or doctor’s office. If stored at home, follow how to store as you were told by the doctor.
  • Do not freeze.

All products:

  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

General drug facts

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else’s drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Last Reviewed Date



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