Calcium gluconate is a mineral supplement used to treat or prevent low blood calcium levels in people who do not get enough calcium from their diets [1]. It is also used to treat conditions caused by low calcium levels, such as certain nerve and muscle problems (like tetany) [1]. Additionally, it serves as an antidote for overdoses of certain medications like magnesium sulfate and for excessive intake of soluble calcium channel blockers [1].
How does calcium gluconate work?
Calcium gluconate provides calcium, an essential mineral for bone health, nerve function, and muscle contraction [1]. When blood calcium is low, the body can experience various symptoms, and calcium gluconate replenishes the body's calcium supply [1].
When does the patent for calcium gluconate expire?
Calcium gluconate is an older drug and has long been off-patent. As such, there are no active patents that would restrict its generic production or sale [2].
Who makes calcium gluconate?
Many pharmaceutical companies manufacture calcium gluconate. It is widely available as a generic medication, with brands and manufacturers varying by region and availability [3].
What are the different forms and uses of calcium gluconate?
Calcium gluconate is available in various forms, including oral tablets, oral solutions, and injectable solutions [1].
* Oral forms are primarily used for dietary supplementation to prevent calcium deficiency and support bone health [1].
* Injectable forms are used in more urgent medical situations, such as treating severe hypocalcemia, managing magnesium sulfate overdose, or counteracting calcium channel blocker toxicity [1]. It is also used in some veterinary applications [4].
What side effects can calcium gluconate cause?
When taken orally, calcium gluconate is generally well-tolerated. Potential side effects can include constipation or stomach upset [1]. When administered intravenously, side effects may include warmth, flushing, vein irritation, or a metallic taste in the mouth [1]. Serious side effects, though rare, can include a sudden drop in blood pressure or a dangerously slow heart rate [1].
How does calcium gluconate compare to calcium carbonate?
Calcium gluconate and calcium carbonate are both common sources of supplemental calcium, but they differ in their elemental calcium content and absorption rates [5].
* Calcium carbonate contains a higher percentage of elemental calcium (about 40%) and is typically more cost-effective [5]. It requires stomach acid to be absorbed effectively, so it is best taken with meals [5].
* Calcium gluconate contains a lower percentage of elemental calcium (about 9%) but is absorbed more readily, even in individuals with low stomach acid [5]. It is often preferred for intravenous administration due to its solubility [5].
What are the risks of taking too much calcium gluconate?
Taking excessive amounts of calcium can lead to hypercalcemia, a condition characterized by high calcium levels in the blood [1]. Symptoms of hypercalcemia can include nausea, vomiting, constipation, increased thirst and urination, confusion, and fatigue [1]. In severe cases, it can lead to kidney problems and heart rhythm disturbances [1].
What regulations govern calcium gluconate?
Calcium gluconate is regulated as a drug and dietary supplement by health authorities like the U.S. Food and Drug Administration (FDA) [6]. Manufacturers must adhere to strict quality control standards for production and labeling [6].
Where can I find more information about drug patents?
Information regarding drug patents, including expiry dates and patent challenges, can be found on resources like DrugPatentWatch.com [2].
*
**Sources
1. National Library of Medicine
2. DrugPatentWatch.com
3. GoodRx
4. VCA Animal Hospitals
5. National Institutes of Health Osteoporosis and Related Bone Diseases ~ National Resource Center
6. U.S. Food & Drug Administration