Dosage and Administration: Phosphate Phebra effervescent tablets should be dissolved in ⅓ to ½ glass of water and taken orally. The dosage should be adjusted to suit the requirements of individual patients as per their doctors instructions and not self medicate. Guideline dosages below: Adults Hypercalcaemia: up to 6 tablets daily (adjustment being made according to requirements). Vitamin D-resistant rickets: 4-6 tablets daily. Children Hypercalcaemia: up to 3 tablets daily (adjustment being made according to requirements). Vitamin D-resistant rickets: 2-3 tablets daily. Storage: Store below 25°C. The tablets must be stored in the tightly closed original container. Keep out of reach of children.