Along with its needing effects, a dietary supplement may cause some unwanted effects. Alfacalcidol, calcifediol, calcitriol, dihydrotachysterol and ergocalciferol do not usually cause any side effects when taken as directed. However, taking large amounts over a period of time may cause some unwanted effects that can be serious .
Check with your family doctor immediately if any of the following effects was happen
Late symptoms of severe overdose
High blood pressure; high fever; irregular heartbeat; stomach pain - severe
Check with your health care professional as soon as possible if any of the following effects was happen
Early symptoms of overdose
Bone pain; constipation - especially in child or adolescents; diarrhea; drowsiness; dryness of mouth; headache - continuing; increased thirst; increase in frequency of urination, especially at night, or in amount of urine; irregular heartbeat; itching skin; loss of appetite; metallic taste; muscle pain; nausea or vomiting - especially in child or adolescents; unusual tiredness or weakness
Late symptoms of overdose
Bone pain; calcium deposits - hard lumps in tissues outside of the bone; cloudy urine; drowsiness; increased sensitivity of eyes to light or irritation of eyes; itching of skin; loss of appetite; loss of sex drive; mood or mental changes; muscle pain; nausea or vomiting; protein in the urine; redness or discharge of the eye, eyelid, or lining of the eyelid; runny nose; weight loss
More common side effects not listed above may also occur in some individuals. If you notice any other problems, check with your health care professional.