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Generic name: propanthelineproe-PAN-the-leen ]
Drug class: Anticholinergics / antispasmodics

Medically reviewed by on Jan 26, 2023. Written by Cerner Multum.

What is Pro-Banthine?

Pro-Banthine is used as part of a treatment for a peptic ulcer.

Pro-Banthine may also be used for purposes not listed in this medication guide.


You should not take Pro-Banthine if you have glaucoma, myasthenia gravis, a blockage in your stomach or intestines, a bladder obstruction, severe ulcerative colitis, or toxic megacolon.

Before taking this medicine

You should not take Pro-Banthine if you are allergic to it, or if you have:

Tell your doctor if you have ever had:

Tell your doctor if you are pregnant or breast-feeding.

Older adults may be more sensitive to the effects of this medicine.

Pro-Banthine is not approved for use by anyone younger than 18 years old.

How should I take Pro-Banthine?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.

Pro-Banthine is usually taken 3 or 4 times a day, 30 minutes before meals and at bedtime. Follow your doctor's instructions.

Store Pro-Banthine at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include feeling restless or excited, warmth or tingling under your skin, confusion, unusual thoughts or behavior, muscle weakness, or paralysis.

What should I avoid while taking Pro-Banthine?

Avoid driving or hazardous activity until you know how Pro-Banthine will affect you. Your reactions could be impaired.

Avoid becoming overheated or dehydrated during exercise and in hot weather. Pro-Banthine can decrease perspiration and you may be more prone to heat stroke.

Pro-Banthine side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Pro-Banthine may cause serious side effects. Stop using Pro-Banthine and call your doctor at once if you have:

  • diarrhea;

  • fast or pounding heartbeats, fluttering in your chest;

  • eye pain or redness, seeing halos around lights;

  • painful or difficult urination; or

  • little or no urination.

Common side effects of Pro-Banthine may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect Pro-Banthine?

Using Pro-Banthine with other drugs that make you drowsy can worsen this effect. Ask your doctor before using opioid medication, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures.

Pro-Banthine slows the digestive tract, which can make it harder for your body to absorb any medicines you take by mouth. Tell your doctor if any of your oral medications do not seem to work as well while you are using this medicine.

Tell your doctor about all your current medicines. Many drugs can affect Pro-Banthine, especially:

This list is not complete and many other drugs may affect Pro-Banthine. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.