Glucose (dextrose)

Energy sugar
ALSO SOLD WITHOUT PRESCRIPTION

Glucose is a energy sugar found in 1 medicine sold in India, such as Glucon-D. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.

Also called: dextrose

What it is used for

Gives quick energy, for example in heat, exhaustion or low sugar.

How it works

Dextrose sugar that is absorbed quickly, raising blood sugar within minutes; used for low sugar (hypoglycaemia) and energy.

How to take it

For a low sugar episode: 15 to 20 g (for example 4 to 5 teaspoons in water), recheck after 15 minutes, then eat a snack.

Common side effects

None at normal amounts

Get medical help straight away if

  • Confusion or unconsciousness from low sugar (do not give by mouth
  • Call for help)

Be careful

Not for people with diabetes except to treat low sugar.

Other medicines and interactions

People with diabetes should count it as sugar.

Pregnancy and breastfeeding

Fine in pregnancy and breastfeeding.

Combination medicines that contain Glucose (1)

Glucon-D

Common questions

What is Glucose used for?

Gives quick energy, for example in heat, exhaustion or low sugar.

How does Glucose work?

Dextrose sugar that is absorbed quickly, raising blood sugar within minutes; used for low sugar (hypoglycaemia) and energy.

How should I take Glucose?

For a low sugar episode: 15 to 20 g (for example 4 to 5 teaspoons in water), recheck after 15 minutes, then eat a snack.

What are the side effects of Glucose?

Common: None at normal amounts. Get help straight away for: Confusion or unconsciousness from low sugar (do not give by mouth, call for help).

Does Glucose interact with other medicines?

People with diabetes should count it as sugar.

Is Glucose safe in pregnancy and breastfeeding?

Fine in pregnancy and breastfeeding.

Does Glucose need a prescription in India?

It is usually sold without a prescription in India, but ask a pharmacist if you take other medicines or have a long-term illness.

Which brands contain Glucose?

Glucon-D.

Sources and further reading

NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.

Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.

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For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.