Table 11.

Standard treatment for XLH rickets.

	Treatment Before the Development of Clinical or Radiological Signs and Symptoms	Treatment in Presence of Clinical Signs or Symptoms
Start dose	Alfacalcidiol: 25–40 ng/kg/day	Alfacalcidiol: 40–80 ng/kg/day
	Calcitriol: 20–30 ng/kg/day	Calcitriol: 20–40 ng/kg/day
	Inorganic phosphate salts: 40–60 mg/kg/day (divided into 4–6 doses/day)	Inorganic phosphate salts: 40–60 mg/kg/day (divided into 4–6 doses/day)
Retention dose	Alfacalcidiol: 25–40 ng/kg/day (1–2 µg/day) Calcitriol: 20–40 ng/kg/day Inorganic phosphate salts: 30–60 mg/kg/day (divided into 4–6 doses/day)