Acid Reducing Drugs & Calcium Absorption

Humans require calcium to build strong bones and teeth, as well as for blood clotting, cell balance, heart regulation and nerve impulse transmission. During its formative years the body produces sufficient amounts; however, around age 30 it stops calcium production. The body begins to break down when insufficient calcium amounts are available. This can lead to serious health problems such as osteoporosis. Scientific studies indicate further calcium reduction occurs when antacids are introduced.

Calcium

• Once the body stops calcium production, supplements will be required. This can be achieved by dietary changes, purchasing calcium-enriched products or through vitamin supplements.

  For calcium to be effective, it must be absorbed into the system. People under age 40 can successfully absorb almost any type of calcium supplement. Unfortunately, people over 50 only absorb around 20 percent of any calcium supplement introduced. That absorption rate can be reduced further if they are taking certain types of antacids.

Calcium Carbonate Antacids

• Antacids such as Os-Cal, Rolaids and Tums are calcium carbonates. They reduce stomach acid output for a short period, roughly 30 to 60 minutes. They work immediately upon intake. They possess a great side benefit because they add calcium back into the body. They can be used a long time if dosage amounts are followed and frequency of use is kept under control. The maximum daily dosage should not be higher than 2,000 milligrams.

H2-Receptor Antagonists

• Brands such as Pepcid, Tagament and Zantac are H2-receptor antagonists. They are used to treat mild cases of heartburn by blocking signals to the parietal cells of the stomach lining. That slows acid production. H2 receptors do not appear to have a serious affect on calcium absorption. Although they do not work as quickly as calcium carbonates, they are faster than proton pump inhibitors. Relief can begin within 30 minutes and last for up to 12 hours. They can be purchased over the counter or be prescribed by a physician. Over-the-counter antacids should be limited to two tablets per day and cannot be taken for more than 14 days. Prescribed versions are stronger and should taken according to doctor's orders.

Proton Pump Inhibitors

• Antacids such as Nexium, Previcid and Prilosec are proton pump inhibitors. They shut down nearly all of the stomach's acid production for as long as 24 hours. Unfortunately, PPIs block calcium absorption in the body, which can lead to a different set of health problems. The most common are bone fracture, gastrointestinal ailments, insufficient stomach acid production and tooth decay.