O-Cal 740 mg Tablet

Calcium supplement (calcium bound to orotic acid) used for:

• Calcium deficiency and as a dietary supplement
• Support in osteoporosis/osteopenia (with vitamin D and other treatment)
• Increased calcium needs in pregnancy, breastfeeding, growth and old age

Adults: as stated on the product, commonly 400–740 mg calcium orotate tablets 1–2 times daily (note: elemental calcium content is relatively low — check the label).

• Total calcium from diet and supplements should usually be about 1,000–1,200 mg daily; avoid exceeding 2,000–2,500 mg.
• Take with food; split doses above 500 mg elemental calcium.
• Often combined with vitamin D3.

• High blood calcium or high urine calcium
• Calcium-containing kidney stones (recurrent)
• Severe kidney impairment
• Allergy to any ingredient

Usually well tolerated. Uncommon: constipation, bloating, wind, nausea. With excess: high calcium (thirst, frequent urination, confusion), kidney stones.

• Kidney disease or history of kidney stones: use on medical advice.
• Taking vitamin D with calcium: occasional calcium checks with long-term high doses.
• Evidence for advantages of the orotate form over other calcium salts is limited.

Calcium supplementation is safe in pregnancy and breastfeeding at recommended doses.

Take 2–4 hours apart from: tetracyclines, quinolones, levothyroxine, bisphosphonates, iron, zinc.

• Thiazide diuretics (high calcium risk)
• Digoxin (arrhythmia risk with high calcium)

High blood calcium: nausea, vomiting, thirst, confusion. Seek medical advice.

Store below 30°C, dry.