Shelcal-500 Tablet 15's
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About Shelcal-500 Tablet
Shelcal-500 Tablet is an oral tablet designed to support and maintain strong bones, teeth, and muscles. It is primarily used to treat or prevent low blood calcium levels in people who do not get enough calcium from their diets. Doctors frequently prescribe this medication to manage conditions like bone loss, weak bones, and decreased activity of the parathyroid gland.
For the best results, you must take Shelcal-500 Tablet regularly and consistently as suggested by your healthcare provider. It is generally recommended to take this tablet with food, as this helps your body absorb the active ingredients more efficiently. Combining this medication with regular weight-bearing exercise and a balanced diet rich in calcium will significantly improve your bone health.
While taking Shelcal-500 Tablet , you might experience mild stomach-related side effects such as constipation, gas, or bloating. However, if you develop signs of high calcium levels, such as unusual nausea, vomiting, confusion, or extreme thirst, you must contact your doctor immediately.
Do not take this medicine if you have high levels of calcium in your blood or urine, severe kidney disease, or certain types of kidney stones. Talk to your doctor before starting Shelcal-500 Tablet if you have kidney disease, sarcoidosis, heart problems, or if you are taking other calcium or vitamin D supplements.
This medicine can interact with certain antibiotics, thyroid medications, and some other medicines, reducing how well they work or increasing the risk of side effects. If you are pregnant, breastfeeding, caring for a child, or are an older adult, talk to your doctor or pharmacist before taking Shelcal-500 Tablet to ensure the dose is appropriate for your age and health needs.
Uses of Shelcal-500 Tablet
Shelcal-500 Tablet is used to prevent and treat calcium and vitamin D deficiencies, as well as to support bone health. The detailed uses of Shelcal-500 Tablet are as follows:
- Osteoporosis: Shelcal-500 Tablet helps prevent and treat bone loss, reducing the risk of painful bone fractures.
- Osteomalacia: This tablet supports the hardening of soft bones, helping to relieve bone pain and muscle weakness.
- Hypocalcemia: It effectively raises low levels of calcium in the blood, ensuring normal nerve and muscle function.
- Hypoparathyroidism: It manages low parathyroid hormone levels, helping to maintain a healthy mineral balance in the body.
Key Benefits
Shelcal-500 Tablet is a nutritional supplement used to prevent and treat calcium and vitamin D deficiencies. It helps maintain strong bones and teeth while supporting normal muscle and nerve function.
- Supports Strong Bones: Calcium and vitamin D3 work together to maintain bone strength, bone mineral density, and overall skeletal health.
- Promotes Healthy Teeth: Provides essential nutrients required for maintaining strong teeth and supporting dental health.
- Supports Muscle Function: Helps maintain normal muscle contraction and may reduce muscle cramps and weakness associated with calcium deficiency.
- Improves Calcium Absorption: Vitamin D3 enhances the absorption of calcium from the intestine, helping the body utilise calcium more effectively.
- Helps Correct Nutritional Deficiencies: Replenishes calcium and vitamin D levels to support overall health, mobility, and long-term bone health.
Directions for Use
- Follow your doctor's instructions on the dosage and timing of this medication to ensure safety.
- Place the tablet in your mouth, chew thoroughly, and swallow.
- Do not swallow it as a whole.
How Shelcal-500 Tablet Works
Alcohol
Unsafe
Drinking alcohol can affect calcium absorption; hence, it is advised to limit/avoid alcohol intake while using Shelcal-500 Tablet .
Pregnancy
Safe if suggested
Shelcal-500 Tablet is considered safe to be used during pregnancy. The doctor will advise you on the dose and duration based on your medical needs.
Breast Feeding
Safe if suggested
Please consult your doctor before taking Shelcal-500 Tablet if you are breastfeeding. Your doctor will weigh the potential risks and benefits before recommending Shelcal-500 Tablet .
Driving
Safe
Shelcal-500 Tablet usually does not interfere with your driving ability.
Liver
Caution
Before taking Shelcal-500 Tablet , let your doctor know if you have a pre-existing or a history of liver disease. Liver disease can alter the metabolic and therapeutic activity of certain forms of Vitamin D.
Kidney
Caution
If you have kidney-related conditions such as kidney stones or are undergoing dialysis, inform your doctor before starting Shelcal-500 Tablet . They will carefully assess the potential benefits and risks based on your specific health situation.
Children
Consult your doctor
Please consult your doctor for using Shelcal-500 Tablet in children.
Heart
Safe if suggested
Shelcal-500 Tablet is generally considered safe for heart patients when taken at the recommended dose. However, it is advisable to consult your doctor before using Shelcal-500 Tablet .
Geriatrics
Safe if suggested
Shelcal-500 Tablet is generally safe for elderly patients when given at the recommended dose. If you have any concerns, please consult your doctor.
What if I have taken an overdose of Shelcal-500 Tablet
Diet & Lifestyle Advise
- Engage in regular weight-bearing exercises, such as walking, jogging, or climbing stairs, to naturally stimulate bone growth and strength.
- Incorporate calcium-rich foods into your daily meals, such as low-fat dairy products, leafy green vegetables, and fortified foods.
- Get safe, moderate sun exposure to help your body naturally produce vitamin D.
- Limit your intake of caffeine, alcohol, and carbonated beverages, as these substances can interfere with how well your body absorbs calcium.
- Avoid smoking or using tobacco products, as smoking is clinically proven to accelerate bone loss.
- Avoid taking more calcium or vitamin D supplements than recommended. Unless advised by your doctor, total daily calcium intake from food and supplements should generally not exceed the recommended upper intake level for your age.

Have a query?
How Soon It Starts Working
The time required for Shelcal-500 Tablet to start to work: The time required for Shelcal-500 Tablet to show its action is unknown. The time for which the effects of Shelcal-500 Tablet last: The duration of action for Shelcal-500 Tablet is clinically unknown.
Storage
What if you forget to take Shelcal-500 Tablet
Drug Warnings
- Take Shelcal-500 Tablet at least 2 hours before or 4 to 6 hours after taking certain antibiotics (like tetracyclines or quinolones) or thyroid medications (like levothyroxine) to prevent absorption issues.
- Do not take any other calcium or vitamin D supplements alongside Shelcal-500 Tablet unless specifically advised by your doctor to avoid an accidental overdose.
- If you have a history of kidney stones, discuss this with your doctor, as you may need regular blood or urine tests to monitor your mineral levels.
- Check with your doctor or pharmacist before using antacids, as many contain calcium and could lead to excessively high calcium levels in your body if taken together.
- If you need to take Shelcal-500 Tablet for several months, your doctor may recommend periodic blood tests to monitor calcium and vitamin D levels, especially if you have kidney disease or take high doses.
Drug-Drug Interactions
Drug-Drug Interaction Summary:
- Antibiotics (Tetracyclines and Quinolones): Shelcal-500 Tablet can attach to these medications in your digestive tract, severely reducing their absorption and making the antibiotics less effective.
- Levothyroxine (Thyroid Medication): Shelcal-500 Tablet can reduce the absorption of levothyroxine. Take levothyroxine at least 4 hours before or after this supplement.
- Thiazide Diuretics (Water Pills): Taking these together may increase the risk of developing dangerously high calcium levels in your blood.
- Bisphosphonates: This supplement can lower the absorption of bone-strengthening medications like alendronate if taken at the same time.
Drug-Drug Interactions
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Co-administration of Dolutegravir with Calcium carbonate and Colecalciferol can reduce the effectiveness of dolutegravir.
How to manage the interaction:
Although there is an interaction, Calcium carbonate and Colecalciferol can be taken with dolutegravir if prescribed by the doctor. Do not discontinue using any medications without consulting a doctor.
Co-administration of Calcium carbonate and Colecalciferol with Raltegravir may interfere with the absorption of Raltegravir and reduce its effectiveness.
How to manage the interaction:
Taking Calcium carbonate and Colecalciferol with Raltegravir can cause an interaction it can be taken if prescribed by a doctor. Consult the doctor if you experience any unusual symptoms. Do not discontinue the medication without consulting a doctor.
Co-administration of Calcium carbonate and Colecalciferol with Ketoconazole may decrease the effects of Ketoconazole.
How to manage the interaction:
Although there is an interaction, Calcium carbonate and Colecalciferol with Ketoconazole it can be taken if prescribed by the doctor. Do not discontinue the medication without consulting a doctor.
Calcium carbonate and Colecalciferol with doxercalciferol are forms of vitamin D, and taking too much vitamin D may lead to toxic effects.
How to manage the interaction:
Although there is a possible interaction between Calcium carbonate and Colecalciferol with doxercalciferol, you can take these medicines together if prescribed by a doctor. If you experience irregular heartbeat, headache, eye infection, sensitivity to light, make sure to call a doctor right away. Do not discontinue any medications without consulting a doctor.
Taking Calcium carbonate and Colecalciferol with paricalcitol may lead to toxic effects.
How to manage the interaction:
Although there is a possible interaction between colecalciferol and paricalcitol, you can take these medicines together if prescribed by a doctor. If you experience irregular heartbeat, headache, eye infection, sensitivity to light, contact a doctor right away. Do not discontinue any medications without consulting a doctor.
The combined use of aluminum hydroxide with Calcium carbonate and Colecalciferol may increase the risk of toxicity.
How to manage the interaction:
Co-administration of Calcium carbonate and Colecalciferol with Aluminium hydroxide can result in an interaction, but it can be taken if a doctor has advised it. If you experience bone pain, muscle weakness, anemia (low number of red blood cells) it's important to contact a doctor right away. Do not stop using any medications without a doctor's advice.
Taking Calcium carbonate and Colecalciferol with dihydrotachysterol may lead to toxic effects.
How to manage the interaction:
Although there is a possible interaction between Calcium carbonate and Colecalciferol with dihydrotachysterol, you can take these medicines together if prescribed by a doctor. If you experience irregular heartbeat, eye infection, sensitivity to light, contact a doctor right away. Do not discontinue any medications without consulting a doctor.
Co-administration of Calcium carbonate and Colecalciferol with Gefitinib may interfere with the absorption of Gefitinib and reduce its effectiveness.
How to manage the interaction:
Although there is an interaction between Calcium carbonate and Colecalciferol with Gefitinib it can be taken if prescribed by the doctor. Do not discontinue using any medications without consulting a doctor.
Coadministration of calcifediol with Calcium carbonate and Colecalciferol can increase the risk of side effects.
How to manage the interaction:
Although there is a possible interaction between Calcium carbonate and Colecalciferol with calcifediol, you can take these medicines together if prescribed by a doctor. If you experience irregular heartbeat, headache, eye infection, sensitivity to light, contact a doctor right away. Do not discontinue any medications without consulting a doctor.
Taking Calcium carbonate and Colecalciferol with ergocalciferol may lead to toxic effects.
How to manage the interaction:
Although there is a possible interaction between Calcium carbonate and Colecalciferol with ergocalciferol, you can take these medicines together if prescribed by a doctor. If you experience irregular heartbeat, headache, eye infection, sensitivity to light, contact a doctor right away. Do not discontinue any medications without consulting a doctor.
Drug-Food Interactions
Drug-Food Interaction Summary:
- High-Fiber or Oxalate-Rich Foods: Eating spinach, rhubarb, bran, or whole grains at the same time as taking this tablet can lower the amount of calcium your body absorbs.
Drug-Food Interactions
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Spinach
How to manage the interaction:
Taking Calcium carbonate and Colecalciferol with food containing oxalic acid (e.g., spinach) or phytic acid (e.g., whole grains) can decrease the absorption of Calcium carbonate and Colecalciferol. It is advised to take Calcium carbonate and Colecalciferol 2 hours after or before consumption of food containing oxalic acid or phytic acid.
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Reference
- Drugs.com Clinical Review Team. Vitamin D Clinical Drug Monograph. Auckland, NZ: Drugs.com; 2026. [Accessed on 02 Jun. 2026]Check here
- Electronic Medicines Compendium (EMC). Pil.292 Patient Information Leaflet (PIL). Cheshire, UK: Datapharm; 2025. [Accessed on 02 Jun. 2026]Check here
- National Center for Biotechnology Information (NCBI). Cholecalciferol Scientific Research Publication. Bethesda, MD: NLM; 2025. [Accessed on 02 Jun. 2026]Check here
- Drugs.com Clinical Review Team. Calcium Carbonate Clinical Drug Monograph. Auckland, NZ: Drugs.com; 2026. [Accessed on 02 Jun. 2026]Check here
- Drugs.com Clinical Review Team. Calcium Vitamin D Drug Interactions Reference. Auckland, NZ: Drugs.com; 2026. [Accessed on 02 Jun. 2026]Check here
- Drugs.com Clinical Review Team. Cholecalciferol,Vitamin D3 Drug Interactions Reference. Auckland, NZ: Drugs.com; 2026. [Accessed on 02 Jun. 2026]Check here
- Tfelt-Hansen J, Tørring O. Calcium and vitamin D3 supplements in calcium and vitamin D3 sufficient early postmenopausal healthy women. Eur J Clin Nutr. 2004;58(10):1420-4Check here
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