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Benztropine mesylate injection

Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.


(benz-TROH-peen MESS-ill-ate)



This medication is used to treat symptoms of Parkinson's disease and similar drug-induced side effects.

How To Use

This drug must be administered as directed by your doctor. Use this drug as directed. It may take a few weeks or months before the full benefits of this medication are observed. Do not stop using this medication without your doctor's approval. Suddenly stopping the medication can sometimes lead to a worsening of symptoms.

Side Effects

May cause drowsiness, dizziness, headache, loss of appetite, stomach upset, vision changes, sleeplessness or trembling of the hands. These effects should subside as your body adjusts to the medication. If they persist or become bothersome, inform your doctor. May cause dizziness especially when rising quickly from a seated or lying position. Change positions slowly and be careful on stairs. May decrease your sweating ability making you more prone to heat stroke. Use caution during exercise and hot weather. Notify your doctor if you develop: vomiting, difficulty swallowing, difficulty urinating, uncontrollable movements, chest pain, rapid heart rate, skin rash, mood or mental changes. If you notice other effects not listed above, contact your doctor or pharmacist.


Tell your doctor your medical history, especially of: glaucoma, irregular heartbeat, urination problems, allergies (especially drug allergies). Alcohol can aggravate drowsiness. Limit alcohol use. This drug should be used during pregnancy only if clearly needed. Discuss the risks and benefits with your doctor. Because this medication appears in breast milk, consult with your doctor before breast-feeding.

Drug Interactions

Inform your doctor about all the medicine you use (both prescription and nonprescription), especially if you take other medicines that make you sleepy or give you dry mouth such as: tranquilizers (e.g., phenothiazines such as chlorpromazine), amantadine, digoxin. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include: dilated pupils, hot/dry/flushed skin, fast heartbeat, fast breathing.


Do not share this product with others.

Missed Dose

If you miss a dose, use it as soon as remembered; do not use if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.


Store at room temperature away from sunlight.