Calcitriol Capsule (Rocaltrol) Side Effects in Pakistan

A complete guide to calcitriol side effects. What are the signs of hypercalcaemia, when to stop the medication, and when to seek emergency care — all covered on this page.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-06-17

Side Effects

Quick Answer

The biggest risk of calcitriol is hypercalcaemia — excessive calcium in the blood. Common side effects include nausea, vomiting, constipation, and weakness. Serious effects include cardiac arrhythmias, kidney stones, and renal failure. Regular blood calcium monitoring is essential. At any hypercalcaemia symptom — stop the medication and see a doctor immediately.

Side Effects at a Glance

Common

Nausea
Vomiting
Constipation
Weakness / fatigue
Headache
Dry mouth
Excessive thirst (polydipsia)
Frequent urination (polyuria)

Serious — See a Doctor

Severe hypercalcaemia — cardiac arrhythmias, renal failure, coma
Nephrocalcinosis / kidney stones (loin pain, haematuria)
Metastatic calcification — soft tissue and vascular calcium deposits
Adynamic bone disease

When to See a Doctor Immediately

Excessive thirst or frequent urination (hypercalcaemia signs)
Nausea, vomiting, weakness, confusion
Loin pain or blood in urine (kidney stones)
Irregular heartbeat or fainting
Severe constipation
Bones, stones, groans, moans — these are classic hypercalcaemia signs — seek care immediately

Calcitriol Capsule (Rocaltrol) Side Effects (Nuksanat)

Calcitriol (Rocaltrol / Calci-D) is generally safe when taken at the correct dose — however it is a potent medicine and the biggest risk is hypercalcaemia. Without regular blood monitoring this treatment can be dangerous.

Hypercalcaemia — Sabse Badi Risk

With calcitriol overdose or without monitoring, blood calcium rises. Keep the classic signs in mind:

> "Bones, stones, groans, moans" > - Bones — bone pain > - Stones — kidney stones (loin pain, blood in urine) > - Groans — nausea, vomiting, constipation (GI symptoms) > - Moans — weakness, fatigue, confusion, depression

If these symptoms appear, stop calcitriol immediately and see a doctor.

Common Side Effects (Aam Nuksanat)

Nausea
Vomiting
Constipation
Weakness / fatigue
Headache
Dry mouth
Excessive thirst (polydipsia)
Frequent urination (polyuria)

These side effects are generally a sign that the dose is too high. If these symptoms occur, get a blood calcium check.

Uncommon Side Effects

Metallic taste
Anorexia
Abdominal pain
Muscle or bone pain

Serious Side Effects (Sanjeedah Nuksanat)

Severe hypercalcaemia — cardiac arrhythmias, renal failure, coma — STOP IMMEDIATELY
Nephrocalcinosis / kidney stones — loin pain, haematuria
Metastatic calcification — soft tissue and vascular calcium deposits
Adynamic bone disease — PTH over-suppression in CKD (cessation of bone turnover)

When to See a Doctor (Kab Doctor Se Milna Zaroori Hai)

Excessive thirst or frequent urination
Nausea, vomiting, weakness, confusion — see a doctor immediately
Loin pain or blood in urine — kidney stones
Irregular heartbeat or fainting — emergency
Severe constipation or abdominal pain

Warnings and Precautions (Ihtiyat)

Regular blood calcium + phosphate monitoring is mandatory
Avoid calcium-containing antacids or a high-calcium diet
The combination of thiazide diuretics with calcitriol is extra risky — inform your doctor
Taking ordinary vitamin D supplements simultaneously is dangerous — tell your doctor about all medicines

Side Effects Summary Table

Type	Side Effect	Action
Common	Nausea, vomiting	Blood calcium check; doctor inform
Common	Excessive thirst, polyuria	Blood calcium check — hypercalcaemia sign
Common	Constipation, weakness	Doctor inform
Serious	Severe hypercalcaemia	Stop medication — see a doctor or go to emergency immediately
Serious	Kidney stones	See a doctor immediately
Serious	Cardiac arrhythmias	Emergency — 1122 or nearest hospital
Serious	Metastatic calcification	Doctor review — treatment adjust

Reporting Side Effects

If you notice any unexpected side effect, report it on the DRAP pharmacovigilance portal: https://www.dra.gov.pk/pharmacovigilance

The information in this guide is for educational purposes only. If you notice any side effect, contact your doctor or pharmacist.

Frequently Asked Questions

Calcitriol ke common side effects kya hain?

Common side effects include nausea, vomiting, constipation, weakness, excessive thirst, and frequent urination. These usually occur when the dose is too high — a blood calcium check is necessary.

Calcitriol se hypercalcaemia kya hai?

Hypercalcaemia means excessive calcium in the blood. Symptoms: excessive thirst, frequent urination, nausea, vomiting, confusion, weakness, constipation. In severe cases cardiac arrhythmias and renal failure can occur. Stop the medication immediately and see a doctor.

Calcitriol aur kidney stones ka kya rishta hai?

When calcitriol causes hypercalcaemia, calcium in urine increases — kidney stones can form. If loin pain or blood in urine occurs, see a doctor immediately.

Calcitriol ka side effect feel ho to kya karein?

Mild effects (nausea, constipation) — inform your doctor. Serious signs (confusion, cardiac symptoms, severe vomiting) — stop the medication immediately and go to emergency.

Calcitriol liver ya kidneys ko affect karta hai?

In CKD, a nephrologist carefully monitors the dose. Excessive doses can cause nephrocalcinosis or worsening renal function. Regular renal function tests are necessary.

Brand alternatives, same-class options, and other medicines used for the same conditions as Calcitriol Capsule.

Other supplements and vitamins

Sibling medicines in the Supplements and Vitamins class.

All in class →

Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.