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Hyoscyamine (By injection)

Hyoscyamine (hye-oh-SYE-a-meen)

Reduces muscle activity, including muscle spasms in the digestive system. Dries and reduces secretions, such as reducing acid in the stomach, and may also treat heart rhythm problems or other conditions. May be used during surgery and other procedures.

Brand Name(s):

Levsin

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

This medicine is not right for everyone. You should not receive it if you had an allergic reaction to hyoscyamine.

How to Use This Medicine:

Injectable

  • Your doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot under your skin, into a muscle, or into a vein.
  • A nurse or other health provider will give you this medicine.

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Some foods and medicines can affect how hyoscyamine works. Tell your doctor if you are also using any of the following:
    • Amantadine, haloperidol
    • Antihistamine
    • Phenothiazine medicine, including chlorpromazine, perphenazine, promethazine, prochlorperazine, thioridazine
    • MAO inhibitor
    • Tricyclic antidepressant

Warnings While Using This Medicine:

  • Tell your doctor if you are pregnant or breastfeeding, or if you have glaucoma, trouble urinating, myasthenia gravis, overactive thyroid, kidney disease, high blood pressure, heart rhythm problems, heart disease, or autonomic neuropathy. Tell your doctor about all digestion problems, including colitis, reflux disease (GERD), or blocked intestines.
  • This medicine may cause you to sweat less and overheat. Avoid hot temperatures.
  • This medicine may make you dizzy or drowsy or give you blurred vision. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

Possible Side Effects While Using This Medicine:

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Unusual behavior, such as confusion, memory loss, anxiety, trouble sleeping, or hallucinations

If you notice these less serious side effects, talk with your doctor:

  • Dry mouth

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088


Last Updated: 1/27/2017
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