Without a Prescription
Calcitriol is the synthetic form of Calcitriol, a substance normally produced in the human organism (the active form of the D3 vitamin). Its effects include stimulation of phosphate and calcium absorption and their normal use in bone development and maintenance. Calcitriol is available for intravenous injection under the form of sterile aqueous solution in 1 ml ampules.
Calcitriol is prescribed for the treatment of patients with low calcium blood levels who are undergoing dialysis for chronic renal affections. Calcitriol may also be prescribed for patients suffering from other medical conditions as well; if you would like to obtain further information regarding why you have been recommended a therapy course with Calcitriol, you are advised to consult your personal health care provider.
Calcitriol should not be prescribed or administered to patients that have high calcium or vitamin D levels in their blood, or to patients that are allergic to Calcitriol or to any of its ingredients.
Special care should be employed in the case of pregnant patients, or for the treatment of patients who suffer from heart or kidney disease, kidney stones, blood vessel disorders or who present high blood phosphate levels. Patients who have recently undergone surgery, who are dehydrated or who are going to have their movement limited for a long period of time may also require special considerations in receiving a treatment with Calcitriol.
Typically, Calcitriol injections are administered in a hospital or clinic by an authorized health care professional, according to the administration indications that have been provided by the prescribing health care provider. However, you may obtain permission to self administer the injections at home. In such cases, you will be taught how to properly inject the Calcitriol doses by an authorized health care professional. You should closely follow the administration guidelines when applying the injections. If you have trouble understanding any of the indications, you should seek the advice of a doctor or a nurse.
Typically, the Calcitriol dosage in cases of hypocalcemia is of 1 to 2 mcg administered once every two days. The initial dose may vary, from 0.5 to 4 mcg three times weekly before the maintenance dose is employed. Your personal health care professional will determine the Calcitriol dose most appropriate for your situation based on a number of case specific factors. As the above dosage is informational only, you are strongly recommended to only administer the dosage prescribed to you by the examining health care provider. You should never employ the dosage or administration schedule that have been prescribed in the case of another patient, as this may cause the treatment to not yield the desired results. If you are unsure of the correct dosage, you should check again with the prescribing health care provider.
In case an overdose with Calcitriol is suspected, you should immediately consult your personal health care provider, or you should contact the local poisons center. In severe situations, emergency medical attention is required and as such the patient should be transported to the nearest medical facility. The common symptoms of an overdose with Calcitriol include headache, dizziness, arrhythmia, loss of appetite, stomach cramps, nausea and vomiting, unusual weakness, mood or mental changes.
In order to avoid an overdose with Calcitriol it is strongly recommended to only use the prescribed dosage with each injection. The doses should not be administered more often than prescribed by the prescribing health care professional.
Setting up and maintaining a strict administration schedule will help reduce the chances of accidentally missing any Calcitriol injections. However, if you happen to miss a dose, it is recommended to administer it as soon as you remember and continue with the normal injection schedule. Patients who are administered the injection once every two days and only remember about a missed dose more than 24 hours after the normal administration time are advised to take the dose immediately, then administer the next dose 48 hours later and continue to inject the medication once every 48 hours. In such cases it is also recommended to consult your personal health care professional for further advice.
Severe allergic reactions to Calcitriol are possible. If you begin to experience any of the characteristic signs and symptoms (swelling of the face, mouth, tongue or lips; closing of the throat causing breathing difficulties; hives or rashes) you should immediately discontinue the treatment and inform your personal health care professional.
Other side effects of a treatment with Calcitriol are possible. These include, but are not limited to behavior changes, decreased sex drive, mental or mood changes, unusual thinking, dizziness or drowsiness. Some patients experienced loss of appetite, constipation, diarrhea, dry mouth, increased thirst, metallic taste, nausea and vomiting, unusual weakness, weight loss, abdominal cramps. In some cases, frequent urination, sometimes accompanied by pain, difficult urination, bone or muscle pain, photosensitivity, eye irritation or redness, flushing, fever, headaches, increased body temperature, runny nose, irregular heartbeat have been noted as possible side effects of a Calcitriol therapy.
These are not the only side effects that may occur while following a treatment course with Calcitriol. It is advised to consult your personal health care provider if you experience any uncommon and bothersome effects, in order to further investigate their causes and treat them accordingly.
It is strongly advised that you let the prescribing health care specialist know of any other medication you are currently taking before starting a treatment with Calcitriol. Calcitriol may interact with Hydrochlorothiazide and other Thiazide diuretics, Digoxin, Magnesium-based antacids, barbiturates, corticosteroids, Cholestyramine, hydantoins or Ketoconazole, but other accidental drug interactions are also possible. As such, it is best that your prescriber is aware of your other medication therapies.
Other Brand Names
In some countries Calcitriol may also be known as:
- Alpha D3;
- AT 10;
- AT 10;
- D3 Vicotrat;
- Enfalac D-Vi-Sol;
- Findeclin Combi;
- Laevovit D3;
- Maximum D3;
- Oleovit D3;
- Riva D;
- Vita D;