Consumer medicine information



Active ingredient(s): benzatropine mesilate

Consumer Medicine Information (CMI)

This leaflet provides important information about using Benztrop. You should also speak to your doctor or pharmacist if you would like further information or if you have any concerns or questions about using Benztrop.

Where to find information in this leaflet:

1. Why am I using Benztrop?
2. What should I know before I use Benztrop?
3. What if I am taking other medicines?
4. How do I use Benztrop?
5. What should I know while using Benztrop?
6. Are there any side effects?
7. Product details

1. Why am I using Benztrop?

Benztrop contains the active ingredient benzatropine mesilate. Benztrop belong to a group of medicines called anticholinergic agents.

Benztrop is used to treat:

  • all forms of parkinsonism.
  • the side effects of certain drugs.

Symptoms of parkinsonism can be caused by certain diseases of the brain affecting movement. They can also be caused by some medicines that are used to treat some mental illnesses. This medicine works by improving shaking and muscle stiffness.

Ask your doctor if you have any questions about why this medicine has been prescribed for you.

Your doctor may have prescribed it for another reason.

2. What should I know before I use Benztrop?


Do not use Benztrop if:

  • you are allergic to benzatropine mesilate, or any of the ingredients listed at the end of this leaflet. Always check the ingredients to make sure you can use this medicine.
  • you have narrow-angle glaucoma.
  • you have a rare condition called tardive dyskinesia that causes uncontrollable twitching or jerking movements of the arms and legs.

Check with your doctor if you have or have had:

  • heart problems such as fast heartbeat
  • prostate problems
  • mental illness
  • any long term illness
  • dehydration
  • difficulty sweating
  • glaucoma
  • alcoholism
  • difficulty with bowel movements
  • any medicines for any other condition.

During treatment, you may be at risk of developing certain side effects. It is important you understand these risks and how to monitor for them. See additional information under Section 6. Are there any side effects?

Pregnancy and breastfeeding

Check with your doctor if you are pregnant or intend to become pregnant.

Talk to your doctor if you are breastfeeding or intend to breastfeed.

If you become pregnant while taking this medicine, tell your doctor immediately.

Use in Children

Do not give this medicine to a child under the age of 3 years.

3. What if I am taking other medicines?

Tell your doctor or pharmacist if you are taking any other medicines, including any medicines, vitamins or supplements that you buy without a prescription from your pharmacy, supermarket or health food shop.

Some medicines may interfere with Benztrop and affect how it works.

These include:

  • some medicines used to treat mental illness or psychotic disorders
  • a group of medicines called tricyclic antidepressants which are used to treat depression
  • other anticholinergic medicines such as benzhexol, biperiden, procyclidine, orphenadrine, levodopa
  • alcohol
  • medicines to calm and help you sleep such as sedatives, anxiolytics and some pain killers
  • metoclopramide medicines used to prevent nausea
  • cisapride, a medicine used to treat reflux
  • ketoconazole, a medicine used to treat fungal infections
  • medicines used to treat glaucoma and oedema, buildup of fluid in the body
  • some medicines used to treat Alzheimer’s disease and myasthenia gravis.

Check with your doctor or pharmacist if you are not sure about what medicines, vitamins or supplements you are taking and if these affect Benztrop.

4. How do I use Benztrop?

How much to take

  • The dose can range from 0.5 mg to 6 mg but is usually 1 to 2 mg.
  • Follow the instructions provided and use Benztrop until your doctor tells you to stop.

When to take Benztrop

  • Benztrop should be used at about the same time each day. Taking it at the same time each day will have the best effect. It will also help you remember when to take it.

How to take Benztrop

  • Swallow the tablets whole with a full glass of water.

If you forget to use Benztrop

If it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to.

Otherwise, take it as soon as you remember, and then go back to taking your medicine as you would normally.

Do not take a double dose to make up for the dose you missed.

If you use too much Benztrop

If you think that you have used too much Benztrop, you may need urgent medical attention.

You should immediately:

  • phone the Poisons Information Centre in Australia (by calling 13 11 26), or the New Zealand National Poisons Centre (by calling 0800 POISON or 0800 764 766), or
  • contact your doctor, or
  • go to the Emergency Department at your nearest hospital.

You should do this even if there are no signs of discomfort or poisoning.

5. What should I know while using Benztrop?

Things you should do

Tell your doctor if you experience signs and symptoms such as:

  • confusion, seeing or hearing things that are not there
  • nervousness, shock, listlessness
  • dizziness, headache
  • poor coordination, unsteadiness when walking
  • muscle weakness, numbness in fingers
  • dry mouth, difficulty swallowing
  • dilated pupils, blurred vision, pressure in the eye
  • fast or irregular heartbeats
  • nausea, vomiting
  • pain when urinating
  • fever, hot and dry flushed skin
  • skin rash
  • constipation
  • breathing difficulties
  • convulsions, fits or seizures
  • difficulty sweating
  • loss of consciousness.

If you are about to be started on any new medicine, remind your doctor and pharmacist that you are taking Benztrop.

Tell any other doctors, dentists, pharmacists or nurses who treat you that you are taking this medicine.

If you are going to have surgery, tell the surgeon or anaesthetist that you are taking this medicine. It may affect other medicines used during surgery.

Keep all of your doctor’s appointments so that your progress can be checked. Your doctor may do some tests from time to time to make sure the medicine is working and to prevent unwanted side effects.

Call your doctor straight away if you:

  • become pregnant while taking this medicine.

Remind any doctor, dentist, pharmacist or nurse you visit that you are using Benztrop.

Things you should not do

  • Do not stop using this medicine suddenly.
  • Do not take Benztrop to treat any other complaints unless your doctor tells you to.
  • Do not give your medicine to anyone else, even if they have the same condition as you.

Driving or using machines

Be careful before you drive or use any machines or tools until you know how Benztrop affects you.

Benztrop may cause dizziness in some people.

This medicine may cause blurred vision or cause you to be less alert than normal. If you have any of these symptoms, do not drive, operate machinery or do anything else that could be dangerous.

Drinking alcohol

Tell your doctor if you drink alcohol.

Alcohol may make you become more drowsy and sleepy. Be careful when drinking alcohol while you are taking this medicine.

Looking after your medicine

  • Keep your tablets in the bottle until it is time to take them.
  • Store below 25°C.

Follow the instructions in the carton on how to take care of your medicine properly.

Store it in a cool dry place away from moisture, heat or sunlight; for example, do not store it:

  • in the bathroom or near a sink, or
  • in the car or on window sills.

Keep it where young children cannot reach it.

When to discard your medicine

If your doctor tells you to stop taking this medicine or the expiry date has passed, ask your pharmacist what to do with any medicine that is left over.

Getting rid of any unwanted medicine

If you no longer need to use this medicine or it is out of date, take it to any pharmacy for safe disposal.

Do not use this medicine after the expiry date.

6. Are there any side effects?

All medicines can have side effects. If you do experience any side effects, most of them are minor and temporary. However, some side effects may need medical attention.

See the information below and, if you need to, ask your doctor or pharmacist if you have any further questions about side effects.

Less serious side effects

Less serious side effects What to do
Eye related:

  • Blurred vision, dilated pupils

Gastrointestinal related:

  • constipation
  • nausea and/or vomiting
  • loss of appetite, weight lost

Mouth related:

  • dry mouth causing difficulty swallowing
Speak to your doctor if you have any of these less serious side effects and they worry you.

Serious side effects

Serious side effects What to do

  • increased heart rate

Gastrointestinal related:

  • severe pain in the stomach with bloating and gut cramps


  • raised body temperature or fever with lack of sweating
  • swelling of the face, lips, tongue or throat


  • numb fingers

Nervous system:

  • changes in mood or mental ability such as depression, nervousness, tiredness or sleepiness, confusion disorientation or memory loss
  • hallucinations
  • worsening symptoms of an existing mental illness

Skin related:

  • skin rash

Urinary tract related:

  • unable to pass urine
  • difficulty or pain passing urine
Call your doctor straight away, or go straight to the Emergency Department at your nearest hospital if you notice any of these serious side effects.

Tell your doctor or pharmacist if you notice anything else that may be making you feel unwell.

Other side effects not listed here may occur in some people.

Reporting side effects

After you have received medical advice for any side effects you experience, you can report side effects to the Therapeutic Goods Administration online at By reporting side effects, you can help provide more information on the safety of this medicine.

Always make sure you speak to your doctor or pharmacist before you decide to stop taking any of your medicines.

7. Product details

This medicine is only available with a doctor’s prescription.

What Benztrop contains

Active ingredient
(main ingredient)
benzatropine mesilate
Other ingredients
(inactive ingredients)
pregelatinised maize starch
lactose monohydrate
microcrystalline cellulose
magnesium stearate

Benztrop tablets contains sugars (as lactose monohydrate).

This medicine does not contain sucrose, gluten, tartrazine, alcohol, dyes or preservatives.

Do not take this medicine if you are allergic to any of these ingredients.

What Benztrop looks like

Benztrop 2 mg tablets are round, flat-faced white tablets, quarter-scored on one side and debossed with “PMS 2” on the other side (AUST R 83130).

Who distributes Benztrop

Benztrop is supplied in Australia by:

Phebra Pty Ltd
19 Orion Road, Lane Cove West,
NSW 2066, Australia.
Telephone: 1800 720 020

Benztrop is distributed in New Zealand by:

AFT Pharmaceuticals Ltd
PO Box 33-203 Auckland.
Telephone: +64 9 4880232

This leaflet was prepared in June 2021.

Benztrop, Phebra and the Phi symbol are trademarks of Phebra Pty Ltd, 19 Orion Road, Lane Cove West, NSW 2066, Australia.