The doctor will decide which dose is suitable. Always follow the doctor's instructions and those which are on the label. If the patient does not understand the instructions, or in case of doubt, ask the doctor or pharmacist.
The capsules should be swallowed with a drink of water.
The usual dosage instructions are given as follows: Adults: Renal osteodystrophy: Initially one 0.25 microgram capsule per day. If necessary, the doctor may increase the dosage by 0.25 micrograms at 2-4 week intervals to find the correct dose.
Post menopausal osteoporosis: One 0.25 microgram capsule twice a day.
Children: For use in children, please consult the doctor.
At the beginning of the treatment calcium levels in the blood should be measured regularly. The dosage of calcitriol can then be adjusted to achieve the correct response. When the correct dosage has been found the calcium levels may continue to be measured but less often. Also, if the doctor thinks it is necessary he/she may prescribe extra calcium supplements to be taken during the treatment.
Continue to take the capsules for as long as the doctor has advised. If the patient forgets to take a capsule, take one as soon as it is remembered, unless it is nearly time to take the next one. Never take two doses together. Take the remaining doses at the correct time.
If the patient sees another doctor or goes into hospital, let him or the staff know what medicines are being taken.