Dimenhydrinate - oral

Patient Medicine Information
Why do I need this medicine?
Dimenhydrinate is used to treat or prevent nausea, vomiting or vertigo (dizziness with sensations of spinning) associated with motion sickness or Meniere’s disease (a disorder of the inner ear).
How do I take this medicine?
Take Dimenhydrinate exactly as directed by your doctor or according to the instructions on the label. Do not take more or less than instructed by your doctor.

You may take this medicine with or without food. Try to take it at the same time each day.

Dimenhydrinate is available as a tablet, chewable tablet or syrup.

If you were given a chewable tablet, the tablet may be chewed and swallowed with or without water.

If you are taking an oral syrup, shake the bottle well before you take it to ensure that the liquid is evenly mixed. Use the measuring spoon or cup provided to measure your dose.

For prevention of motion sickness, it should be taken at least 30 minutes before travel.

You may stop taking this medicine when you do not feel nauseous, spinning sensations, or the urge to vomit.
What should I do if I have forgotten to take this medicine?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and return to your normal dosing schedule.

DO NOT double a dose under any circumstances.
What should I take note of while taking this medicine?
Inform your doctor if you have the following conditions:
  • history of asthma or other lung disease characterised by difficulty breathing e.g. emphysema, bronchitis
  • glaucoma (increased pressure in the eye)
  • enlarged prostate gland
  • urinary tract problems e.g. difficulty urinating
  • heart disease including high blood pressure or fast or irregular heartbeat
  • stomach disease e.g. stomach ulcer, obstruction in the stomach outlet
  • fits or seizure
  • thyroid disease
  • liver disease
Let your doctor know if you are pregnant or breastfeeding.

Be sure to check with your doctor or pharmacist before giving Dimenhydrinate to a child. Children may be more sensitive to the side effects.
What side effects could I experience?
Dimenhydrinate may cause drowsiness, dizziness or blurred vision. If affected, do not drive or take part in any activity in which you need to be alert or need to see clearly.

Other side effects include any of the following: headache, dry mouth, nose or throat; stomach pain or discomfort, nausea, excitement, fatigue, rash, confusion, painful urination, nervousness, restlessness, difficulty sleeping, ringing in the ears, coughing up thick mucus, and rapid heartbeat.

Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Can I take this with other medicines?
Inform your doctor and pharmacist if you are taking or using any of these medicines:
  • certain antibiotics e.g. gentamycin, tobramycin
  • medicines that can cause drowsiness or affect your concentration e.g. diazepam, clonazepam
  • medicines to treat depression e.g. isocarboxazid, phenelzine, nortriptyline, desipramine
  • atropine (medicine used to reduce saliva and other body fluid secretion before surgery)
This list does not include all medicines that may interact with Dimenhydrinate.

Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.
What special dietary instructions should I follow?
Avoid alcohol.
How should I store this medicine?
Store in a cool, dry place away from the reach of children.

Medicines must not be used past the expiry date.
This information is independently developed by MIMS based on dimenhydrinate - oral and is provided for your reference only. It is not a replacement for and should only be used in conjunction with full consultation with a licensed healthcare professional, the information provided by your pharmacist and/or the manufacturer of the medication. It may not contain all the available information you require and cannot substitute professional medical care, nor does it take into account all individual circumstances. Although great effort has been made to ensure content accuracy, we shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2021 MIMS. All rights reserved. Powered by MIMS.com
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