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Oyster Cal
Generic name: calcium carbonate
Brand names: Alka-Mints, Alka-Seltzer Cool Action Heartburn Relief, Alka-Seltzer Extra Strength Heartburn Relief, Calcium Oyster Shell, Cal-Gest, Icar Prenatal Chewable Calcium, Oyster Cal, Oyster Calcium, Oyster Shell, Oyster Shell Calcium, Oyster Shell Calcium 500, Tums, Tums Antacid Naturals, Tums Chewy Bites, Tums Chewy Bites Ultra Strength, Tums Chewy Delights, Tums E-X, Tums Smoothies, Tums Smoothies Extra Strength, Tums Sugar-Free
What is Oyster Cal?
Calcium is a mineral that occurs naturally in foods. It is important for many normal body functions, especially for building and keeping bones healthy.
Oyster Cal is used to prevent or treat a calcium deficiency.
There are many brands and forms of calcium carbonate available. Not all brands are mentioned in this leaflet.
Oyster Cal may also be used for other purposes not listed in this medication guide.
This section was rewritten for readability and reviewed for meaning.
How should I take Oyster Cal?
Use exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Check the label of your Oyster Cal product to see if it should be taken with or without food.
Swallow the Oyster Cal regular tablet with a full glass of water.
The chewable tablet should be chewed before you swallow it.
Shake the oral suspension (liquid) well just before you measure a dose. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.
Use the Oyster Cal powder as directed. Allow the powder to dissolve completely, then consume the mixture.
Oyster Cal may be only part of a complete program of treatment that also includes dietary changes. Learn about the foods that contain calcium.
Your Oyster Cal dose may need to be adjusted as you make changes to your diet. Follow your doctor's instructions very closely.
Store at room temperature away from moisture and heat. Do not freeze.
This section was rewritten for readability and reviewed for meaning.
Warnings
Follow all instructions on your medicine label and package. Inform all your healthcare providers about your medical conditions, allergies, and all the medicines you are taking.
This section was rewritten for readability and reviewed for meaning.
Before taking this medicine
Ask a doctor or pharmacist if it is safe for you to take Oyster Cal if you have ever had:
- kidney disease;
- kidney stones;
- cancer;
- a parathyroid gland disorder; or
- high levels of calcium in your blood.
Ask a doctor before using Oyster Cal if you are pregnant or breast-feeding. Your dose may need to be different during pregnancy or while you are nursing.
This section was rewritten for readability and reviewed for meaning.
Oyster Cal side effects
Get emergency medical help if you notice signs of an allergic reaction: hives; trouble breathing; swelling of your face, lips, tongue, or throat.
Oyster Cal may lead to serious side effects. Contact your doctor immediately if you experience:
- little or no urination;
- swelling, rapid weight gain; or
- high calcium levels in your blood--symptoms include nausea, vomiting, constipation, increased thirst or urination, muscle weakness, bone pain, confusion, lack of energy, or feeling tired.
Common side effects of Oyster Cal may include:
- upset stomach, gas; or
- constipation.
This is not a full list of side effects; others may happen. Contact your doctor for medical advice about side effects. You can report side effects to the FDA at 1-800-FDA-1088.
This section was rewritten for readability and reviewed for meaning.
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it’s almost time for your next scheduled dose, skip the missed dose. Do not take extra medicine to make up for the missed dose.
This section was rewritten for readability and reviewed for meaning.
What happens if I overdose?
Seek emergency medical help or call the Poison Help line at 1-800-222-1222.
Before taking any multivitamins, mineral supplements, or antacids while using Oyster Cal, ask a doctor or pharmacist for advice.
This section was rewritten for readability and reviewed for meaning.
What other drugs can affect Oyster Cal?
Calcium can make it more difficult for your body to absorb some medicines. If you take other medications, take them at least 2 hours before or 4 to 6 hours after you take Oyster Cal.
Other drugs may interact with calcium carbonate, including prescription and over-the-counter medicines, vitamins, and herbal products. Inform your doctor about all your current medicines and any medicine you begin or stop using.
This section was rewritten for readability and reviewed for meaning.
Related medicines
Content is provided for education and is not medical advice. See our medical disclaimer.