Health Library: ABCDEFGHIJKLMNOPQRSTUVWXYZ

Hyoscyamine Sulfate Solution for injection

What is this medicine?

HYOSCYAMINE (hye oh SYE a meen) is used to treat stomach and bladder problems. It is also used as an antidote for certain drug overdoses, to help diagnose certain problems of the gastrointestinal tract, to reduce pain and secretions caused by pancreatitis, and in some cases of heart block.

How should I use this medicine?

This medicine is for injection under the skin or into a muscle or vein. It is given by a health care professional in a hospital or clinic setting.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 2 years old for selected conditions, precautions do apply.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • anxiety or nervousness

  • confusion

  • dizziness

  • feeling faint or lightheaded, falls

  • fast, irregular heartbeat

  • fever

  • trouble passing urine or change in the amount of urine

  • unusually weak or tired

  • vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • altered taste

  • constipation

  • nausea

What may interact with this medicine?

  • amantadine

  • antacids

  • benztropine

  • donepezil

  • galantamine

  • medicines for depression, anxiety, or psychotic disturbances

  • medicines for hay fever and other allergies

  • rivastigmine

  • tacrine

What if I miss a dose?

This does not apply.

Where should I keep my medicine?

This drug is given in a hospital or clinic and will not be stored at home.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • glaucoma

  • heart disease or previous heart attack

  • myasthenia gravis

  • prostate trouble

  • stomach obstruction

  • trouble passing urine

  • ulcerative colitis

  • an unusual or allergic reaction to hyoscyamine, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. To reduce the risk of dizzy or fainting spells, do not sit or stand up quickly, especially if you are an older patient. Alcohol can make you more dizzy. Avoid alcoholic drinks.

Stay out of bright light and wear sunglasses if this medicine makes your eyes more sensitive to light.

Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.

This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.

Avoid extreme heat (e.g., hot tubs, saunas). This medicine can cause you to sweat less than normal. Your body temperature could increase to dangerous levels, which may lead to heat stroke.