Ascorbic acid - oral

Patient Medicine Information
Why do I need this medicine?
Ascorbic acid is used as a supplement to treat vitamin C deficiency, particularly in a condition known as scurvy.
How do I take this medicine?
Take Ascorbic acid 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 it with or without food.

Ascorbic acid is available in different formulations such as tablet, chewable tablets, extended-release type of tablet or capsule (may be labelled “ER”), oral liquid or syrup.

If you are taking the extended-release type of tablet or capsule, swallow it whole. Do not divide, chew, or crush the tablet or capsule.

If you are taking an oral liquid or 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 out your prescribed dose.
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:
  • diabetes
  • kidney disease
  • history of or at risk for kidney stones (abnormal stone like mass formation)
  • G6PD deficiency (an inherited blood disorder that affects the red blood cell)
Let your doctor know if you are pregnant or breastfeeding.

If you are going for certain laboratory tests, inform your doctor that you are taking Ascorbic acid as it may interfere with the results of these tests.
What side effects could I experience?
Ascorbic acid may cause any of the following side effects: diarrhoea, nausea, vomiting, dizziness, headache.

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 any of these medicines:
  • iron containing medicines
  • antacids (medicine that reduces stomach acid production) containing aluminium salts
  • aspirin (medicine for pain and inflammation)
  • estrogen containing contraceptives
This list does not include all medicines that may interact with Ascorbic acid.

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 ascorbic acid - 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 © 2022 MIMS. All rights reserved. Powered by
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