Calcitriol Wyvern 0.25 Micrograms Capsules
Calcitriol, UK/H/0428/001-002, 14.09.2016
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
• If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.
1. What Calcitriol is and what it is used for
2. What you need to know before you take Calcitriol
3. How to take Calcitriol
4. Possible side effects
5. How to store Calcitriol
6. Contents of the pack and other information
Calcitriol contains a medicine called calcitriol. This belongs to a group of medicines called ‘vitamin D metabolites’.
Calcitriol is used to treat the following:
• Bone disease in people with kidney problems (renal osteodystrophy).
• The lower strength Calcitriol 0.25 microgram capsules are also used to treat weakening of the bones in women after the menopause (change of life). This is also known as post-menopausal osteoporosis.
Calcitriol works by making your body absorb more calcium from your diet. This helps to form healthy bones and reduce bone damage.
• You are allergic to Calcitriol or any of the other ingredients of this medicine (listed in Section 6: What Calcitriol contains).
• You are allergic to other ‘vitamin D metabolite’ medicines (used to treat bone disease). These include alfacalcidol and colecalciferol.
• You have high levels of calcium in your blood (hypercalcaemia).
• You have extra deposits of calcium in your body (metastatic calcification).
• You are unwell because of high levels of vitamin D in your body.
Do not take Calcitriol if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Calcitriol.
Talk to your doctor or pharmacist before taking Calcitriol if:
• You are finding it difficult to move about (for example, after an operation).
• You have kidney problems (the doctor may need to monitor the phosphate levels in your blood and diet).
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This is because Calcitriol can affect the way some medicines work. Also some other medicines can affect the way Calcitriol works.
In particular, tell your doctor or pharmacist if you are taking any of the following medicines:
• Other medicines containing vitamin D.
• Diuretics, also called ‘water tablets’ (used to treat high blood pressure). These include bendroflumethiazide, chlortalidone and indapamide.
• Medicines like digoxin or digitoxin (used to treat heart disease).
• Medicines containing magnesium, such as antacids (used to treat indigestion).
• Phenytoin or phenobarbitol (used to treat epilepsy).
• Steroid medicines, such as hydrocortisone, prednisolone and dexamethasone.
• Colestyramine and sevelamer, or other ‘ion-exchange resins’ (used to treat high levels of cholesterol in your blood).
• Phosphate (the doctor may need to monitor phosphate levels in your blood).
Also tell your doctor or pharmacist if you have taken a medicine containing vitamin D over the last few months that has long-lasting effects. These medicines include ergocalciferol and colecalciferol.
• Do not take any vitamin or food supplements that contain vitamin D while you are taking Calcitriol.
• Do not eat food which has vitamin D added (food which is ‘fortified’ with vitamin D) while you are taking Calcitriol.
• It is very important to keep to any diet that your doctor has given to you.
• If you change how much calcium or vitamin D you have in your diet this can increase the risk of side effects (for example, if you eat more dairy products like milk and cheese, or take vitamins without your doctor knowing).
• Drink plenty of fluids (such as water) as it is important not to become dehydrated. This does not apply if you have kidney problems.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Talk to your doctor before taking Calcitriol if you are pregnant, think you are pregnant, or plan to get pregnant. Your doctor will then decide if you should take Calcitriol.
You can take Calcitriol if you are breast-feeding. However, your doctor will take blood samples from you and your child to check that there are no unwanted effects.
Driving and using machines
Calcitriol is not likely to affect you being able to drive or use any tools or machines.
Calcitriol contains sorbitol, which is a type of sugar. If you have been told by your doctor that you cannot tolerate or digest some sugars (have an intolerance to some sugars), talk to your doctor before taking this medicine.
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.
Swallow the capsules whole with a little water.
While you are taking Calcitriol, your doctor will want you to have regular blood tests to check that the level of calcium in your blood does not get too high.
• The recommended starting dose for adults and older people is one 0.25 microgram capsule once a day.
• After 2 to 4 weeks your doctor may start increasing your dose slowly by 0.25 microgram at a time.
• Eventually, depending on your blood test results, your doctor may need to adjust your dose again. He or she may ask you to take Calcitriol two or three times a week instead of every day. The maximum dose each week is 12 micrograms.
Bone disease after the menopause (post-menopausal osteoporosis)
• The recommended dose for adult and older women is one 0.25 microgram capsule twice a day.
If you take more Calcitriol than you should
• If you take more Calcitriol than you should, talk to a doctor or go to a hospital straight away. Take the medicine pack with you.
• If you take too many capsules, you may get too much calcium in your blood (hypercalcaemia). The signs include loss of appetite, weight loss, feeling sick, being sick, constipation, headache and feeling sluggish, drowsy or weak.
If you forget to take Calcitriol
• If you forget to take a dose, skip the missed dose. Then take your next dose as normal.
• Do not take a double dose (two doses at the same time) to make up for a forgotten dose.
If you stop taking Calcitriol
Do not stop taking Calcitriol without talking to your doctor. This is because weakness of your bones needs long term treatment.
If someone else takes your Calcitriol capsules by mistake, they should talk to a doctor or go to a hospital straight away.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
The following side effects may happen rarely (may affect up to 1 in 1,000 people) with this medicine:
High levels of calcium in your blood
• The signs include loss of appetite, feeling sick, being sick, headache and feeling sluggish, drowsy or weak.
• Very high levels of calcium in your blood may lead to high temperature (fever), feeling thirsty, dehydration, passing more water than normal, wetting the bed, constipation, stomach pain, blockage of the bowel and an uneven heart beat. There may be infections in the bladder and normal growth may stop.
• Occasionally, mental problems may occur. Also there may be deposits of calcium in areas other than your bone (for example, in your kidneys as ‘kidney stones’). Your doctor may change your dose of Calcitriol if this happens.
Changes in how well your liver is working (shown by blood tests).
• The signs can include itchy skin, skin rashes and reddening of the skin (which may be severe). Reporting of side effects
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed on this leaflet.
You can also report side effects directly via the nationally reporting system listed in Appendix V. By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the outside of packaging. The expiry date refers to the last day of that month.
These capsules should be stored in the package or container supplied. Do not store above 30°C. Do not transfer them to another container.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.
Calcitriol Capsules come in two different strengths.
Each Calcitriol 0.25 microgram capsule contains 0.25 micrograms of the active ingredient calcitriol.
Each Calcitriol 0.5 microgram capsule contains 0.5 micrograms of the active ingredient calcitriol.
The other ingredients are fractionated coconut oil, butylated hydroxyanisole (E320), butylated hydroxytoluene (E321), gelatine, glycerol, sorbitol and the dyes titanium dioxide (E171) and quinoline yellow (E104). The 0.5 microgram capsule also includes the dye patent blue (E131). Both strengths of capsule are printed with black ink that contains shellac (E904) glaze and black iron oxide (E172).
The capsules containing 0.25 micrograms of calcitriol are yellow and the capsules containing 0.5 micrograms of calcitriol are green.
The product is available in pack sizes of 20, 30, 50 and 100 capsules.
See outer packaging or the pharmacy label for contents i.e. the number of capsules.
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