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  • Basic Info
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Generic: trihexyphenidyl
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It is for Parkinsonism or for movement problems caused by certain drugs.
               



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What is this medicine?

TRIHEXYPHENIDYL (trye hex ee FEN i dil) is for Parkinsonism or for movement problems caused by certain drugs.

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
  • high blood pressure
  • kidney disease
  • liver disease
  • prostate problems
  • an unusual or allergic reaction to trihexyphenidyl, other medicines, lactose, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast- feeding

How should I use this medicine?

Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. Take your medicine at regular intervals. Do not take your medicine more often than directed. Do not suddenly stop taking your medicine because you may develop a severe reaction.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

Patients over 65 years old may have a stronger reaction and need a smaller dose.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

  • benztropine
  • drugs for bladder problems
  • drugs for breathing problems like ipratropium and tiotropium
  • drugs for certain stomach or intestine problems like propantheline, homatropine methylbromide, glycopyrrolate, atropine, belladonna, and dicyclomine
  • levodopa
  • scopolamine

What should I watch for while using this medicine?

Your doctor or health care professional may want you to have eye exams while you are taking this medicine.

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.

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. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.

               
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