سعر جي.فيرا 30 قرص للمضغ 2026

G.vera calcium and magnesium dietary supplement, 30 chewable tablets; manufacturer page states 1110 mg calcium and 310 mg magnesium (basis not stated) to support bone health.

• LevothyroxineCalcium carbonate can interfere with levothyroxine absorption; separate levothyroxine from calcium carbonate by at least 4 hours.NIH Office of Dietary Supplements
• Quinolone antibiotics (e.g. ciprofloxacin, levofloxacin)Calcium and magnesium reduce quinolone absorption; take the antibiotic 2 hours before or 2 hours after calcium supplements, and at least 2 hours before or 4-6 hours after magnesium-containing supplements.NIH Office of Dietary Supplements
• Tetracyclines (e.g. doxycycline)Magnesium forms insoluble complexes with tetracyclines; take the antibiotic at least 2 hours before or 4-6 hours after a magnesium-containing supplement.NIH Office of Dietary Supplements
• Oral bisphosphonates (e.g. alendronate)Magnesium-rich supplements can decrease bisphosphonate absorption; separate by at least 2 hours.NIH Office of Dietary Supplements
• DolutegravirCalcium supplements can substantially reduce dolutegravir levels (chelation); take dolutegravir 2 hours before or 6 hours after calcium supplements.NIH Office of Dietary Supplements
• LithiumLong-term lithium can cause hypercalcaemia and concurrent calcium supplements could increase this risk.NIH Office of Dietary Supplements

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