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Calcichew-D3 Melon

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SUMMARY OF PRODUCT CHARACTERISTICS

1. NAME OF THE MEDICINAL PRODUCT


Calcichew-D3Melon 500 mg/1000 IU chewable tablets


2. QUALITATIVE AND QUANTITATIVE COMPOSITION


One tablet contains:

Calcium carbonate equivalent to 500 mg calcium

Cholecalciferol concentrate (powder form) equivalent to 1000 IU (25 microgram) cholecalciferol (vitamin D3)


Excipient(s)with known effect:

One tablet contains 1 mg aspartame (E951), 390 mg sorbitol (E420) and 1.75 mg sucrose


For the full list of excipients, see section 6.1.


3. PHARMACEUTICAL form


Chewable tablet.


Round, white, uncoated and convex tablets of 16 mm. May have small specks.


4. Clinical particulars


4.1 Therapeutic indications


Prevention and treatment of vitamin D and calcium deficiency.

Vitamin D and calcium supplement as an adjunct to specific osteoporosis treatment of patients who are at risk of vitamin D and calcium deficiency.


4.2 Posology and method of administration


Posology


Adults and elderly

One tablet once daily.


The amount of calcium in Calcichew-D3 Melon is lower than the recommended daily intake. Calcichew-D3 Melon is therefore primarily to be used by patients with need of D-vitamin supplementation, but who have some dietary intake of calcium.


Special Patient Populations


Paediatric population:

Calcichew-D3 Melon tablets are not intended for use in children or adolescents.


Impaired renal function

Calcichew-D3 Melon should not be used in patients with severe renal impairment (see section 4.3).


Dosage in hepatic impairment

No dose adjustment is required


Method of administration


Oral. The tablets should be chewed or sucked.


4.3 Contraindications



4.4 Special warnings and precautions for use


During long-term treatment, serum calcium levels should be followed and renal function should be monitored through measurements of serum creatinine. Monitoring is especially important in elderly patients on concomitant treatment with cardiac glycosides or diuretics (see section 4.5) and in patients with a high tendency to calculus formation. In case of hypercalcaemia or signs of impaired renal function the dose should be reduced or the treatment discontinued.


Calcium carbonate with cholecalciferol tablets should be used with caution in patients with hypercalcaemia or signs of impaired renal function and the effect on calcium and phosphate levels should be monitored. The risk of soft tissue calcification should be taken into account.


During concomitant treatment with other sources of vitamin D and/or medications or nutrients (such as milk) containing calcium, there is a risk of hypercalcaemia and milk-alkali syndrome with subsequent kidney function impairment. In these patients serum calcium levels should be followed and renal function should be monitored.


Calcichew-D3 Melon should be prescribed with caution to patients suffering from sarcoidosis, due to the risk of increased metabolism of vitamin D3 into its active form. These patients should be monitored with regard to the calcium content in serum and urine.


Calcichew-D3 Melon should be used cautiously in immobilised patients with osteoporosis due to increased risk of hypercalcaemia.


Calcichew-D3 Melon contains aspartame (E951, a source of phenylalanine). May be harmful for people with phenylketonuria.


Calcichew-D3 Melon contains sorbitol (E420) and sucrose. Patients with rare hereditary problems of fructose intolerance, glucose- galactose malabsorption or sucrase-isomaltase insufficiency should not take this medicine.


4.5 Interaction with other medicinal products and other forms of interaction


Thiazide diuretics reduce the urinary excretion of calcium, therefore due to increased risk of hypercalcaemia, serum calcium should be regularly monitored during concomitant use of thiazide diuretics.


Calcium carbonate may interfere with the absorption of concomitantly administered tetracycline preparations. For this reason, tetracycline preparations should be administered at least two hours before or four to six hours after oral intake of calcium carbonate.


Hypercalcaemia may increase the toxicity of cardiac glycosides during treatment with calcium and vitamin D. Patients should be monitored with regard to electrocardiogram (ECG) and serum calcium levels.


If a bisphosphonate is used concomitantly, this preparation should be administered at least one hour before the intake of Calcichew-D3 Melon since gastrointestinal absorption may be reduced.


The efficacy of levothyroxine can be reduced by the concurrent use of calcium, due to decreased levothyroxine absorption. Administration of calcium and levothyroxine should be separated by at least four hours.


The absorption of quinolone antibiotics may be impaired if administered concomitantly with calcium. Quinolone antibiotics should be taken two hours before or six hours after intake of calcium.


Calcium salts may decrease the absorption of iron, zinc and strontium ranelate. Consequently, iron, zinc or strontium ranelate preparations should be taken at least two hours before or after Calcichew-D3 Melon.


Treatment with orlistat may potentially impair the absorption of fat-soluble vitamins (e.g. vitamin D3).


4.6 Fertility, pregnancy and lactation


Pregnancy

Calcichew-D3 Melon can be used during pregnancy, in case of a calcium and vitamin D deficiency. During pregnancy the daily intake should not exceed 2500 mg calcium and 4000 IU vitamin D. Studies in animals have shown reproductive toxicity of high doses of vitamin D (see section 5.3). In pregnant women, overdoses of calcium and vitamin D should be avoided as permanent hypercalcaemia has been related to adverse effects on the developing foetus. There are no indications that vitamin D at therapeutic doses is teratogenic in humans.


Breastfeeding

Calcichew-D3Melon can be used during breast-feeding. Calcium and vitamin D3pass into breast milk. This should be considered when giving additional vitamin D to the child.


4.7 Effects on ability to drive and use machines


Calcichew-D3 Melon has no known influence on the ability to drive and use machines.


Undesirable effects


Adverse reactions are listed below, by system organ class and frequency. Frequencies are defined as: very common (≥1/10), common (≥1/100 to <1/10), uncommon (≥1/1,000 to <1/100), rare (≥1/10,000 to <1/1,000), very rare (<1/10,000), not known (cannot be estimated from the available data).


Immune system disorders

Not known: Hypersensitivity reactions such as angioedema or laryngeal oedema.


Metabolism and nutrition disorders

Uncommon: Hypercalcaemia and hypercalciuria.

Very rare: Milk-alkali syndrome (frequent urge to urinate; continuing headache; continuing loss of appetite; nausea or vomiting; unusual tiredness or weakness; hypercalcaemia, alkalosis and renal impairment). Seen usually only in overdose (see section 4.9).


Gastrointestinal disorders

Rare: Constipation, dyspepsia, flatulence, nausea, abdominal pain, and diarrhoea.


Skin and subcutaneous tissue disorders

Very rare: Pruritus, rash and urticaria.


Other special population

Patients with renal impairment: potential risk of hyperphosphataemia, nephrolithiasis and nephrocalcinosis. See section 4.4.


Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the national reporting system listed in Appendix V*.


4.9 Overdose


Symptoms

Overdose can lead to hypercalcaemia and hypervitaminosis D. Symptoms of hypercalcaemia may include anorexia, thirst, nausea, vomiting, constipation, abdominal pain, muscle weakness, fatigue, mental disturbances, polidipsia, polyuria, bone pain, nephrocalcinosis, renal calculi and in severe cases, cardiac arrhythmias. Extreme hypercalcaemia may result in coma and death. Persistently high calcium levels may lead to irreversible renal damage and soft tissue calcification.


Milk-alkali syndrome may occur in patients who ingest large amounts of calcium and absorbable alkali.

Treatment of hypercalcaemia

Treatment is essentially symptomatic and supportive. The treatment with calcium and vitamin D must be discontinued. Treatment with thiazide diuretics and cardiac glycosides must also be discontinued (see section 4.5). Emptying of the stomach in patients with impaired consciousness. Rehydration, and, according to severity, isolated or combined treatment with loop diuretics, bisphosphonates, calcitonin and corticosteroids. Serum electrolytes, renal function and diuresis must be monitored. In severe cases, ECG and CVP should be followed.


5. PHARMACOLOGICAL PROPERTIES


5.1 Pharmacodynamic properties


Pharmacotherapeutic group: Mineral supplements, Calcium, combinations with vitamin D and/or other drugs.


ATC code: A12AX


Vitamin D3 increases the intestinal absorption of calcium.


Administration of calcium and vitamin D3 counteracts the increase of parathyroid hormone (PTH) which is caused by calcium deficiency and which causes increased bone resorption.

A clinical study of institutionalised patients suffering from vitamin D deficiency indicated that a daily intake of 1000 mg calcium and 800 IU vitamin D for six months normalised the value of the 25-hydroxylated metabolite of vitamin D3 and reduced secondary hyperparathyroidism and alkaline phosphatases.


An 18 month double-blind, placebo controlled study including 3270 institutionalised women aged 84+/- 6 years who received supplementation of vitamin D (800 IU/day) and calcium phosphate (corresponding to 1200 mg/day of elemental calcium), showed a significant decrease of PTH secretion. After 18 months, an "intent-to treat" analysis showed 80 hip fractures in the calcium-vitamin D group and 110 hip fractures in the placebo group (p=0.004). A follow-up study after 36 months showed 137 women with at least one hip fracture in the calcium-vitamin D group (n=1176) and 178 in the placebo group (n=1127) (p≤0.02).


5.2 Pharmacokinetic properties


Calcium

Absorption: The amount of calcium absorbed through the gastrointestinal tract is approximately 30% of the swallowed dose.

Distribution and biotransformation: 99% of the calcium in the body is concentrated in the hard structure of bones and teeth. The remaining 1% is present in the intra- and extracellular fluids. About 50% of the total blood-calcium content is in the physiologically active ionised form with approximately 10% being complexed to citrate, phosphate or other anions, the remaining 40% being bound to proteins, principally albumin.

Elimination: Calcium is eliminated through faeces, urine and sweat. Renal excretion depends on glomerular filtration and calcium tubular reabsorption.


Cholecalciferol

Absorption: Vitamin D is easily absorbed in the small intestine.

Distribution and biotransformation: Cholecalciferol and its metabolites circulate in the blood bound to a specific globulin. Cholecalciferol is converted in the liver by hydroxylation to 25-hydroxycholecalciferol. It is then further converted in the kidneys to the active form 1,25-dihydroxycholecalciferol. 1,25-dihydroxycholecalciferol is the metabolite responsible for increasing calcium absorption. Vitamin D3 which is not metabolised is stored in adipose and muscle tissues.

Elimination: Vitamin D3 is excreted in faeces and urine.


5.3 Preclinical safety data


At doses far higher than the human therapeutic range teratogenicity has been observed in animal studies. There is further no information of relevance to the safety assessment in addition to what is stated in other parts of the SPC.


6. PHARMACEUTICAL PARTICULARS


6.1 List of excipients


Sorbitol (E420)

Povidone

Flavouring (strawberry-watermelon)

Maize maltodextrin

Glyceryl triacetate (E1518)

Mono and diacetyl tartaric acid esters of mono-and deglycerides of fatty acids

Magnesium stearate

Aspartame (E951)

All-rac-alpha-tocopherol

Sucrose

Modified maize starch

Triglycerides, medium-chain

Sodium ascorbate

Silica, colloidal anhydrous


6.2 Incompatibilities


Not applicable.


6.3 Shelf life


HDPE tablet container: 30 months

Shelf life after first opening of the tablet container is 60 days.


6.4 Special precautions for storage


HDPE tablet container: Do not store above 30°C. Store in the original container in order to protect from light. Keep the container tightly closed in order to protect from moisture.


Nature and contents of container


The chewable tablets are packed in:

HDPE tablet containers with HDPE screw caps

Pack sizes: 30, 60, 90, 100 and 120 tablets


Not all pack sizes may be marketed.


6.6 Special precautions for disposal


No special requirements.


7. MARKETING AUTHORISATION HOLDER


<[To be completed nationally]>


8. MARKETING AUTHORISATION NUMBER(S)


<[To be completed nationally]>


9. DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION


Date of first authorisation: {DD month YYYY}>

<Date of latest renewal: {DD month YYYY}>


<[To be completed nationally]>


10. DATE OF REVISION OF THE TEXT


2016-06-10

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