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This combination medication is used to prevent or treat low blood calcium levels in people who do not get enough calcium from their diets. It may be used to treat conditions caused by low calcium levels such as bone loss (osteoporosis), weak bones (osteomalacia/rickets), decreased activity of the parathyroid gland (hypoparathyroidism), and a certain muscle disease (latent tetany). It may also be used in certain patients to make sure they are getting enough calcium (e.g., women who are pregnant, nursing, or postmenopausal, people taking certain medications such as phenytoin, phenobarbital, or prednisone).Calcium plays a very important role in the body. It is necessary for normal functioning of nerves, cells, muscle, and bone. If there is not enough calcium in the blood, then the body will take calcium from bones, thereby weakening bones. Vitamin D helps your body absorb calcium and phosphorus. Having the right amounts of vitamin D, calcium, and phosphorus is important for building and keeping strong bones.
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| Overview |
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How To Use |
Side Effects |
Precautions |
Missed Dose |
Drug Interactions |
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Oyst-Cal-D 500
Uses
This combination medication is used to prevent or treat low blood calcium levels in people who do not get enough calcium from their diets. It may be used to treat conditions caused by low calcium levels such as bone loss (osteoporosis), weak bones (osteomalacia/rickets), decreased activity of the parathyroid gland (hypoparathyroidism), and a certain muscle disease (latent tetany). It may also be used in certain patients to make sure they are getting enough calcium (e.g., women who are pregnant, nursing, or postmenopausal, people taking certain medications such as phenytoin, phenobarbital, or prednisone).Calcium plays a very important role in the body. It is necessary for normal functioning of nerves, cells, muscle, and bone. If there is not enough calcium in the blood, then the body will take calcium from bones, thereby weakening bones. Vitamin D helps your body absorb calcium and phosphorus. Having the right amounts of vitamin D, calcium, and phosphorus is important for building and keeping strong bones.
Notes
- Keep all regular medical and laboratory appointments.
- If your doctor has directed you to take this medication, laboratory and/or medical tests (e.g., calcium levels) should be performed periodically to monitor your progress or check for side effects.
- Consult your doctor for more details.Foods rich in vitamin D include: fortified dairy products, eggs, sardines, cod liver oil, chicken livers, and fatty fish.
- Vitamin D is also made by the body as a result of exposure to the sun.Foods rich in calcium include: dairy products (e.g., milk, yogurt, cheese, ice cream), dark-green leafy vegetables (e.g., broccoli, spinach, bok choy), and calcium-fortified foods (e.g., orange juice).You can decrease the risk of bone disease by being physically active, not smoking, and avoiding the use of alcohol/caffeine.
Storage
- Store at room temperature away from light and moisture.
- See packaging for the exact temperature range.
- If you have any questions about storage, ask your pharmacist.
- Do not store in the bathroom.
- Keep all medicines away from children and pets.
Overdose
- Symptoms of overdose may include: nausea/vomiting, loss of appetite, mental/mood changes, headache, drowsiness, weakness, tiredness.
How To Use
- Take this medication by mouth with food.
- Follow all directions on the product package, or take as directed by your doctor.
- If you are uncertain about any of the information, consult your doctor or pharmacist.
- Take up to 500 milligrams of calcium at a time.
- If your daily dose is more than 500 milligrams, then divide your dose and space it throughout the day.Use this medication regularly to get the most benefit from it.
- To help you remember, take it at the same time(s) each day.If your doctor has recommended that you follow a special diet, it is very important to follow the diet to get the most benefit from this medication and to prevent serious side effects.
- Do not take other supplements/vitamins unless ordered by your doctor.Calcium supplements come in different forms that contain different amounts of calcium/vitamin D.
- Ask your doctor or pharmacist to help select the best product for you.If you think you may have a serious medical problem, seek immediate medical attention.
Side Effects
- Constipation or stomach upset may occur.
- If any of these effects persist or worsen, tell your doctor or pharmacist promptly.If your doctor has directed you to take this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects.
- Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: nausea/vomiting, loss of appetite, unusual weight loss, mental/mood changes, change in the amount of urine, bone/muscle pain, headache, increased thirst, increased urination, weakness, tiredness, fast/pounding heartbeat.A very serious allergic reaction to this drug is rare.
- However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching, swelling, severe dizziness, trouble breathing.If you notice other effects not listed above, contact your doctor or pharmacist.
Precautions
- Before taking this medication, tell your doctor if you have any allergies.This medication should not be used if you have certain medical conditions.
- Before using this medicine, consult your doctor or pharmacist if you have: high calcium/vitamin D levels (hypercalcemia/hypervitaminosis D), difficulty absorbing nutrition from food (malabsorption syndrome).Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart/blood vessel disease, kidney stones, kidney disease, certain immune system disorder (sarcoidosis), liver disease, certain bowel diseases (Crohn's disease, Whipple's disease), little or no stomach acid (achlorhydria), low levels of bile, untreated phosphate imbalance.Tell your doctor if you are pregnant before using this medication.
- During pregnancy, doses of vitamin D greater than the recommended dietary allowance should be used only when clearly needed.
- Discuss the risks and benefits with your doctor.This medication passes into breast milk.
- Consult your doctor before breast-feeding.
Missed Dose
- If you miss a dose, take it as soon as you remember.
- If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule.
- Do not double the dose to catch up.
Drug Interactions
- If you are taking this medication under your doctor's direction, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them.
- Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.This drug should not be used with the following medications because very serious interactions may occur: other vitamin D products (e.g., calcitriol).If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting this medication.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: calcium channel blockers (e.g., verapamil, nifedipine), certain anti-seizure medications (e.g., phenytoin, phenobarbital), corticosteroids (e.g., prednisone), digoxin, phosphate binders, thiazide diuretics (e.g., hydrochlorothiazide).Calcium can decrease the absorption of other drugs such as tetracycline antibiotics (e.g., doxycycline, minocycline), estramustine, levothyroxine, and quinolone antibiotics (e.g., ciprofloxacin, levofloxacin).
- Also, certain medications can decrease the absorption of vitamin D (bile acid sequestrants such as cholestyramine/colestipol, mineral oil, orlistat).
- Therefore, separate your doses of these medications as far as possible from your doses of calcium/vitamin D.
- Ask your doctor or pharmacist about how long you should wait between doses and for help finding a dosing schedule that will work with all your medications.Check the labels on all your prescription and nonprescription/herbal products (e.g., antacids, laxatives, vitamins) because they may contain calcium, phosphate, or vitamin D.
- Ask your pharmacist about using those products safely.This medication may interfere with certain laboratory tests (including cholesterol tests), possibly causing false test results.
- Make sure laboratory personnel and all your doctors know you use this drug.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgement of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.
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