Answer
Sep 21, 2026 - 09:36 AM
Common side effects of taking One-Alpha tablets (alfacalcidol) include hypercalcemia (high levels of calcium in the blood), which may cause symptoms like nausea, vomiting, thirst, and confusion. Other possible side effects are headache, loss of appetite, and abdominal pain. If you experience any severe or unusual symptoms, contact your doctor promptly.
