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Calcid (Generic Calcium Carbonate)

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Why is this medication prescribed?

Calcid, which is a generic form of calcium carbonate, is commonly prescribed to individuals who have low levels of calcium in their blood or need to supplement their calcium intake for various reasons. Calcium carbonate is an essential mineral for maintaining healthy bones, teeth, and muscles. It’s often recommended for conditions like osteoporosis, osteomalacia (softening of the bones), rickets (bone deformity in children), and as a supplement for pregnant or breastfeeding women.

How should this medicine be used?

Calcid, like other calcium carbonate supplements, is typically taken orally, usually with food to enhance absorption. Here are some general guidelines on how Calcid should be used:

  • Dosage: Follow the dosage instructions provided by your healthcare provider or as directed on the medication label. The dosage can vary depending on factors such as age, medical condition, and the reason for which it’s being prescribed.
  • Administration: Swallow the Calcid tablets whole with a full glass of water. Do not chew or crush the tablets unless instructed to do so by your healthcare provider.
  • Timing: It’s often recommended to take Calcid with meals to aid in absorption. However, follow your healthcare provider’s specific instructions regarding timing.
  • Consistency: Try to take Calcid at the same time(s) each day to maintain consistent levels of calcium in your body.
  • Avoidance of Interference: Certain substances, such as antacids containing aluminum, magnesium, or calcium, may interfere with the absorption of Calcid. Consult your healthcare provider or pharmacist about any other medications or supplements you are taking to ensure there are no interactions.
  • Monitoring: Your healthcare provider may periodically check your calcium levels through blood tests to ensure that you are receiving the appropriate dosage of Calcid.
  • Duration: Continue taking Calcid for the full duration prescribed by your healthcare provider, even if you start feeling better. Stopping too soon may lead to a recurrence of symptoms or a drop in calcium levels.

Always consult your healthcare provider for personalized guidance on the proper use of Calcid or any other medication. They can provide recommendations tailored to your specific medical needs and history.

Other uses for this medicine

  • Treatment of acid indigestion, heartburn, and upset stomach: Calcium carbonate acts as an antacid, helping to neutralize stomach acid and alleviate symptoms of heartburn or indigestion.
  • Prevention of osteoporosis: Adequate calcium intake is crucial for maintaining bone health and density, which can help prevent osteoporosis, especially in postmenopausal women and older adults.
  • Treatment of hyperphosphatemia: Calcium carbonate can also be used to lower elevated phosphate levels in individuals with kidney disease.

What special precautions should I follow?

Special precautions to consider when using Calcid include:

  • Allergic reactions: If you have a known allergy to calcium carbonate or any other ingredients in Calcid, you should avoid using it and consult with your healthcare provider for alternative options.
  • Interactions with other medications: Calcium carbonate may interact with certain medications, including antibiotics, thyroid medications, and certain osteoporosis medications. It’s important to inform your healthcare provider about all the medications, supplements, and over-the-counter drugs you are taking to avoid potential interactions.
  • Kidney stones: Excessive intake of calcium supplements, including calcium carbonate, may increase the risk of developing kidney stones, especially in individuals with a history of kidney stones or kidney disease. It’s essential to follow the recommended dosage and drink plenty of fluids to help prevent kidney stone formation.
  • Monitoring calcium levels: Regular monitoring of calcium levels through blood tests is important, especially if you are taking high doses of calcium supplements like Calcid, to ensure that your calcium levels remain within the appropriate range.

Always consult with your healthcare provider before starting or making any changes to your calcium supplementation regimen, especially if you have underlying health conditions or are taking other medications. They can provide personalized guidance based on your individual needs and medical history.

What special dietary instructions should I follow?

Special dietary instructions for Calcid typically involve taking it with food. Calcium carbonate is usually best absorbed when taken with meals, as the presence of food in the stomach aids in its absorption. Additionally, it’s recommended to consume an adequate amount of vitamin D, as it helps the body absorb calcium more effectively. Foods rich in vitamin D include fatty fish, fortified dairy products, and eggs. However, always consult with your healthcare provider for personalized dietary advice.

What should I do if I forget a dose?

If you forget to take a dose of Calcid, take it as soon as you remember. However, if it’s almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you’re unsure about what to do, it’s best to consult with your healthcare provider or pharmacist for guidance.

What side effects can this medication cause?

Calcid (generic calcium carbonate) is generally considered safe when taken as directed. However, like any medication, it may cause side effects in some individuals. Common side effects of Calcid may include:

  • Constipation: Calcium carbonate can have a constipating effect, especially when taken in high doses or for an extended period.
  • Gas and bloating: Some individuals may experience gas, bloating, or abdominal discomfort when taking calcium carbonate supplements.
  • Upset stomach: In some cases, calcium carbonate may cause an upset stomach, nausea, or vomiting.
  • Hypercalcemia: Taking excessive amounts of calcium carbonate can lead to high levels of calcium in the blood, a condition known as hypercalcemia. Symptoms of hypercalcemia may include excessive thirst, frequent urination, abdominal pain, muscle weakness, fatigue, and confusion.
  • Kidney stones: Long-term use of high-dose calcium supplements like Calcid may increase the risk of developing kidney stones, especially in individuals with a history of kidney stones or kidney disease.
  • Interactions with other medications: Calcium carbonate may interact with certain medications, affecting their absorption or effectiveness. It’s essential to consult with a healthcare provider to ensure that Calcid does not interfere with any other medications you may be taking.

It’s important to note that these side effects are not experienced by everyone, and many individuals tolerate calcium carbonate supplementation well. However, if you experience severe or persistent side effects while taking Calcid, it’s essential to seek medical attention promptly. Additionally, if you have any concerns about potential side effects or the safety of Calcid, consult with your healthcare provider for personalized advice and guidance.

What should I know about storage and disposal of this medication?

When it comes to the storage and disposal of Calcid (generic calcium carbonate), here are some important considerations:


  • Store Calcid at room temperature, away from moisture and heat.
  • Keep it out of reach of children and pets.
  • Avoid storing Calcid in the bathroom or near the kitchen sink, where it might be exposed to moisture.
  • Follow any specific storage instructions provided by the manufacturer or your healthcare provider.


  • Dispose of Calcid according to local regulations or guidelines for medication disposal.
  • Do not flush Calcid down the toilet or pour it down the drain unless instructed to do so.
  • Check with your pharmacist or healthcare provider for information on proper disposal methods, such as using a medication take-back program or a community drug disposal program.

In case of emergency/overdose

In case of emergency or overdose of Calcid, it’s essential to seek medical attention immediately. Overdose of calcium carbonate can lead to serious complications, including hypercalcemia (high levels of calcium in the blood), which may require medical intervention. Symptoms of an overdose may include nausea, vomiting, constipation, confusion, weakness, and irregular heartbeat. If you suspect an overdose or experience any severe symptoms after taking Calcid, contact your local poison control center or emergency room for assistance.

What other information should I know?

  • Follow the dosage instructions provided by your healthcare provider or pharmacist carefully.
  • Inform your healthcare provider about any other medications, supplements, or medical conditions you have before starting Calcid.
  • Keep track of your calcium intake from all sources, including food and other supplements, to avoid exceeding recommended levels.
  • Attend regular follow-up appointments with your healthcare provider to monitor your calcium levels and adjust your treatment plan as needed.
  • If you have any questions or concerns about Calcid or its use, don’t hesitate to consult with your healthcare provider or pharmacist for guidance.
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