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What does it do?

Colecalciferol increases the amount of vitamin D in your body. It is also used for other conditions such as osteoporosis (weak bones).

Before you start

  • Tell your doctor if you have kidney, heart or liver problems.
  • Tell your doctor if you are allergic to soya or peanuts. Colecalciferol capsules may contain soya oil.
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

How should you take it?

Take colecalciferol as directed with a glass of water.

What if you forget a dose?

Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.

Can you take other medicines?

Some medicines available without a prescription may react with colecalciferol including:

  • orlistat (Xenical®)

Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.

What side effects might you notice?

Side EffectsRecommended action

Symptoms of too much vitamin D including: headache, confusion, vision changes, weakness, tiredness, dry mouth, metallic taste, feeling thirsty, loss of appetite, irregular heartbeat, muscle pain, stomach pain, nausea, vomiting, constipation, peeing more often.

Tell your doctor

If you notice any other effects, discuss them with your doctor or pharmacist.

Other information:

  • You need enough calcium in your diet to make sure colecalciferol works properly for you. Discuss with your health professional.

This leaflet contains important, but not all, information about this medicine.

Prepared by the MyMedicines Committee at Christchurch Hospital, Te Whatu Ora - Waitaha, New Zealand. March 2023

For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?

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About My Medicines

My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.

For more information about the sheets, see: What does a My Medicines sheet cover?

My Medicines is developed by a team at Te Whatu Ora – Waitaha. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed