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Package Leaflet: Information for the Patient
Hidroferol Shock 3 mg Oral Solution
calcifediol monohydrate
Read the entire package leaflet carefully before starting to take this medication, as it contains important information for you.
Contents of the Package Leaflet
It contains a form of vitamin D, calcifediol monohydrate, in very high doses, used to treat vitamin D deficiency and related problems. Vitamin D acts in the human body, among other actions, by increasing calcium absorption.
Hidroferol Shock 3 mg Oral Solution is indicated for the treatment of vitamin D deficiency in adults, in those disorders that require the administration of very high doses.
Do not take Hidroferol Shock 3 mg Oral Solution:
Warnings and Precautions
Consult your doctor or pharmacist before starting to take Hidroferol Shock 3 mg Oral Solution.
Children and Adolescents
Hidroferol Shock 3 mg should not be used in children under 18 years of age.
Other Hidroferol brand medications with much lower dose concentrations are authorized.
Other medications and Hidroferol Shock 3 mg Oral Solution
Inform your doctor or pharmacist if you are using, have recently used, or may need to use any other medication, including those purchased without a prescription.
Some medications may affect how this medication works. On the other hand, its active ingredient, calcifediol monohydrate, may affect the efficacy of other medications taken at the same time.
Therefore, interactions may occur with the following medications:
Taking Hidroferol Shock 3 mg Oral Solution with Food and Drinks
Some foods and drinks are supplemented with vitamin D. This should be taken into account, as the effects of these foods may add up to the effects of this medication and become excessive.
Pregnancy, Breastfeeding, and Fertility
If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medication.
Do not take this medication during pregnancy.
Do not take this medication while breastfeeding your child.
Driving and Using Machines
This medication does not affect the ability to drive vehicles or operate machines.
The Hidroferol Shock 3 mg Oral Solution ampoule is EXCLUSIVELY for oral administration.
Hidroferol Shock 3 mg Oral Solution should NOT be administered intramuscularly or intravenously.
Follow your doctor's instructions for administering this medication exactly. If in doubt, consult your doctor or pharmacist again.
Do not take more medication or take it more frequently than indicated by your doctor. If you do, you may increase the risk of an overdose.
The recommended dose is:
Adults: a single dose of 1 ampoule of Hidroferol Shock (3 mg of calcifediol monohydrate).
After a time interval (usually 2 or more months), if your doctor considers it necessary, you may be prescribed a new dose to maintain adequate blood calcifediol levels.
The interval between doses will vary depending on the initial vitamin D blood level, the disorder being treated, and the response to treatment. This will be frequently monitored through blood and/or urine tests.
Oral administration.
The contents of the ampoule can be taken alone or diluted in a little water, milk, or juice.
Shake the ampoule before use.
The instructions for opening and using the ampoules are as follows:

If you think the action of this medication is too strong or too weak, inform your doctor or pharmacist.
If you take more Hidroferol Shock 3 mg Oral Solutionthan you should
If you take more of this medication than the doses indicated by your doctor (overdose) and/or for a prolonged period, you may experience hypercalcemia (high blood calcium levels) and high phosphate levels in blood and urine, leading to possible kidney failure.
Some toxicity symptoms may appear soon, while others may appear after some time. Initial symptoms include: weakness, fatigue, headache, loss of appetite, dry mouth, digestive disorders such as vomiting, abdominal cramps, constipation, or diarrhea, increased thirst; increased urination, muscle pain.
Symptoms that appear after some time may include: itching, weight loss, kidney disorders, intolerance to sunlight, conjunctivitis, increased cholesterol, transaminases, pancreatitis, calcification (calcium salt deposits) in blood vessels and other tissues such as tendons and muscles, increased blood pressure, mental disorders, irregular heartbeats.
Overdose symptoms usually improve or disappear when treatment is discontinued, but if the intoxication is severe, it could lead to kidney or heart failure.
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or go to a medical center, or call the Toxicology Information Service, phone 91 562 04 20, indicating the medication and the amount ingested (or bring the medication with you).
If you have any other questions about the use of this medication, ask your doctor, pharmacist, or nurse.
Like all medications, this medication can cause side effects, although not everyone experiences them.
Side effects may occur if excessive doses are taken or with a frequency higher than indicated by the doctor, which can cause hypercalcemia (high blood calcium levels) and hypercalciuria (high urine calcium levels); see section 3 for a description of the symptoms.
Other side effects include allergic reactions such as itching, local swelling, difficulty breathing, and skin redness.
Reporting Side Effects
If you experience any type of side effect, consult your doctor, pharmacist, or nurse, even if it is a possible side effect not listed in this package leaflet. You can also report them directly through the Spanish Medication Surveillance System for Human Use: www.notificaRAM.es
By reporting side effects, you can contribute to providing more information on the safety of this medication.
Keep this medication out of the sight and reach of children.
Do not use this medication after the expiration date shown on the packaging after CAD. The expiration date is the last day of the month indicated.
No special storage conditions are required.
Medications should not be disposed of through wastewater or household waste. Deposit the packaging and unused medications in the pharmacy's SIGRE point. If in doubt, ask your pharmacist how to dispose of the packaging and unused medications. This will help protect the environment.
Composition of Hidroferol Shock 3 mg Oral Solution
Appearance of the Product and Package Contents
Hidroferol Shock is presented in an oral solution. In a brown glass ampoule with an O.P.C. opening system and a polyethylene cylinder to facilitate opening, containing 1.5 ml of solution for oral administration.
The solution is a clear, slightly yellowish, viscous liquid, free of visible impurities.
Each package contains 1 ampoule.
Hidroferol 0.1 mg/ml oral drops in solution.
Hidroferol 0.266 mg oral solution.
Hidroferol 0.266 mg soft capsules.
Marketing Authorization Holder
Faes Farma, S.A.
Autonomia Etorbidea, 10
48940 Leioa (Bizkaia)
Spain
Manufacturer
Faes Farma Portugal, S.A.
Rua Elias Garcia, 28
2700-327 Amadora
Portugal
Date of the Last Revision of this Package Leaflet:November 2023
Detailed information about this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of HIDROFEROL CHOQUE 3 mg ORAL SOLUTION in October, 2025 is around 9.85 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.
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