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Gretacal Injection is a mineral supplement used to treat acute symptomatic hypocalcaemia (low calcium levels in the blood). It contains Calcium gluconate and Calcium lactobionate, which work by increasing calcium levels in the blood. It may cause side effects such as tiredness, vomiting, nausea, pain, swelling, or redness at the injection site. Before receiving this medication, inform your doctor if you are pregnant or breastfeeding, taking any other medications, or have any allergies or pre-existing medical conditions.

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Written By ,
Reviewed By Santoshini Reddy G , M Pharmacy
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More about the Product

Manufacturer/Marketer :

Sandoz Pvt Ltd

Consume Type :

Parenteral

Expires on or after :

Jan-27

Return Policy :

Not Returnable

About Gretacal Injection

Gretacal Injection is a sterile injectable mineral therapy used to rapidly treat severe low calcium levels in the blood, a condition known as hypocalcaemia. It delivers calcium directly into the bloodstream when immediate correction is medically necessary or when calcium cannot be taken by mouth. This treatment helps restore normal nerve, muscle, and heart function during acute calcium deficiency.

Because this medicine is given as an injection or slow intravenous infusion, it is administered only by a qualified healthcare professional in a hospital or clinical setting. It is not intended for self-administration. Along with emergency treatment, your doctor may recommend long-term measures such as eating calcium-rich foods and maintaining adequate vitamin D levels to help prevent future calcium deficiency.

Some people may experience temporary side effects during or shortly after the injection, such as a feeling of warmth, mild flushing, slight dizziness, or nausea. These effects are usually short-lived. However, tell your doctor or nurse immediately if you develop an irregular heartbeat, difficulty breathing, severe pain or swelling at the injection site, or any other unusual symptoms.

Before receiving this medicine, tell your doctor if you have kidney disease, kidney stones, heart disease, or high calcium levels in your blood or urine. Do not receive this medicine if you have hypercalcaemia, hypercalciuria, or are allergic to any of its ingredients unless your doctor determines that it is appropriate for your condition.

Tell your doctor about all prescription medicines, over-the-counter medicines, vitamins, herbal products, and supplements you are taking before receiving this injection. Certain heart medicines, antibiotics, and other treatments may interact with calcium injections. If you are pregnant, planning a pregnancy, breastfeeding, or are an older adult, consult your healthcare provider before receiving this medicine.
 

Uses of Gretacal Injection

Your doctor may prescribe Gretacal Injection to help manage the following conditions:

  • Severe hypocalcaemia (low blood calcium): Rapidly raises calcium levels in the bloodstream to treat or prevent symptoms such as severe muscle cramps, spasms, numbness, tingling, or seizures caused by acute calcium deficiency.
  • Calcium deficiency tetany: Helps relieve painful involuntary muscle contractions and increased nerve excitability caused by a sudden fall in blood calcium levels.
  • Hyperkalaemia affecting the heart: Used in emergency situations to help protect the heart from the harmful effects of dangerously high potassium levels while other treatments work to lower potassium.
     

Key Benefits

Gretacal Injection helps restore calcium levels quickly in emergency situations where prompt treatment is essential.
 

  • Rapidly restores calcium levels: Delivers calcium directly into the bloodstream for fast correction of severe calcium deficiency.
  • Relieves symptoms of acute hypocalcaemia: Helps reduce muscle spasms, cramps, numbness, tingling, and other symptoms caused by low calcium levels.
  • Supports normal heart function: Helps stabilise the heart during serious electrolyte disturbances, particularly in emergencies involving dangerously high potassium levels.
  • Provides calcium when oral treatment is not suitable: Because it is given directly into a vein, it can be used when patients cannot swallow medicines or require immediate calcium replacement.
     

Directions for Use

  • Follow your doctor’s instructions on the dosage and timing of this medication.
  • Gretacal Injection will be administered by a healthcare professional in a medical setting.
  • Do not self-administer it.

How Gretacal Injection Works

Gretacal Injection contains two highly soluble calcium salts that release calcium ions directly into the bloodstream after intravenous administration. Calcium gluconate provides a readily available source of calcium that helps restore low blood calcium levels. Calcium is essential for transmitting nerve signals, allowing muscles to contract normally, supporting blood clotting, and maintaining a regular heartbeat. Calcium lactobionate is another soluble calcium salt that contributes additional calcium ions, helping restore the body's calcium balance. Together, both ingredients rapidly increase circulating calcium levels, allowing vital organs and tissues to function normally during acute calcium deficiency.
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Alcohol

Consult your doctor

It is not known if alcohol interacts with Gretacal Injection. Please consult your doctor before consuming alcohol.

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Pregnancy

Caution

Please inform your doctor if you are pregnant or planning to become pregnant before receiving Gretacal Injection. Your doctor will weigh the benefits and potential risks before prescribing it.

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Breast Feeding

Caution

Please inform your doctor if you are breastfeeding before receiving Gretacal Injection. Your doctor will weigh the benefits and potential risks before prescribing it.

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Driving

Consult your doctor

It is not known if Gretacal Injection affects your ability to drive. It is advised to drive only if you are alert.

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Liver

Caution

If you have a pre-existing liver disease, inform your doctor before receiving Gretacal Injection.

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Kidney

Caution

If you have a pre-existing kidney disease, inform your doctor before receiving Gretacal Injection. Your doctor may need to adjust the dose of your medicine based on your health condition.

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Children

Consult your doctor

Please consult your doctor regarding the use of Gretacal Injection in children below 12 years. Your doctor will weigh the risks and benefits before prescribing this medicine to your child.

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Heart

Caution

Gretacal Injection should be used with caution in patients with heart disease as it may increase the risk of side effects. Please consult the doctor if you have heart problems.

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Geriatrics

Consult your doctor

Please consult your doctor before using Gretacal Injection in elderly people. Your doctor will prescribe Gretacal Injection if the benefits outweigh the risk.

What if I have taken an overdose of Gretacal Injection

Because this medicine is administered under medical supervision, an overdose is unlikely. However, if too much medicine is given, symptoms such as extreme thirst, severe nausea, vomiting, confusion, unusual muscle weakness, or excessively high calcium levels may occur. If an overdose is suspected, seek immediate medical attention or go to the nearest emergency department without delay.

Diet & Lifestyle Advise

  • Eat calcium-rich foods: Once your calcium levels have been corrected, include calcium-rich foods such as milk, yoghurt, cheese, leafy green vegetables, and calcium-fortified foods, as recommended by your doctor.
  • Maintain adequate vitamin D levels: Get enough vitamin D through safe sunlight exposure or dietary sources such as oily fish and egg yolks because vitamin D helps your body absorb calcium effectively.
  • Limit alcohol and caffeine: Excessive alcohol and caffeine may reduce calcium absorption and increase calcium loss over time.
  • Stay well hydrated: Drinking enough water helps support normal kidney function and may reduce the risk of kidney stone formation.
  • Avoid smoking: Smoking may interfere with bone health and calcium balance over time.
     
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How Soon It Starts Working

The time required for Gretacal Injection to start to work: The time required for Gretacal Injection to start to work is 10 to 30 minutes after administration. The time for which the effects of Gretacal Injection last: The effect of Gretacal Injection lasts for 4 to 6 hours.

What if you forget to take Gretacal Injection

Since this medicine is administered by a healthcare professional in a hospital or clinic, missing a dose is uncommon. If you miss a scheduled appointment for your injection, contact your healthcare provider or clinic as soon as possible to arrange another appointment.

Storage

• Store Gretacal Injection at room temperature, preferably between 20°C and 25°C, or according to the storage instructions on the product label.

Drug Warnings

  • Report injection site discomfort immediately: Tell your doctor or nurse straight away if you notice burning, stinging, pain, or swelling while the injection is being given.
  • Stand up slowly after treatment: If you feel dizzy after the injection, remain seated or lie down until you feel better before standing.
  • Attend all monitoring appointments: Keep all scheduled blood tests and follow-up appointments so your doctor can monitor your calcium levels and kidney function.
  • Tell your healthcare team about all medicines: Inform your doctor about every prescription medicine, over-the-counter medicine, vitamin, herbal product, and supplement you are taking before receiving this injection.
     

verifiedApollotooltip
  • Heart medicines (such as digoxin): Taking calcium injections with digoxin may increase the risk of serious irregular heart rhythms.
  • Certain antibiotics (such as ceftriaxone or tetracyclines): Calcium may reduce the effectiveness of some antibiotics or form physical complexes with certain injectable antibiotics.
  • Thiazide diuretics (water tablets): These medicines may reduce the amount of calcium removed by your kidneys, increasing the risk of high blood calcium levels.
     

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verifiedApollotooltip
  • Foods high in oxalic acid or phytic acid: Foods such as spinach, rhubarb, and whole grains can reduce calcium absorption from food. Although this is less important during injectable treatment, they can still influence your overall long-term mineral balance.
     

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Habit Forming

No

Therapeutic Class

[MINERALS]

FAQs

Gretacal Injection is a mineral supplement used to treat acute symptomatic hypocalcaemia (low calcium levels in the blood). It also helps restore electrolytes in conditions such as rickets (weak and soft bones in children), osteomalacia (weak and soft bones in adults), and neuromuscular weakness (muscle weakness caused by nerve problems).
Gretacal Injection contains Calcium Gluconate and Calcium Lactobionate. It works by increasing calcium levels in the blood, thus providing the essential minerals necessary for maintaining and strengthening bones.
The common side effects of Gretacal Injection may include tiredness, vomiting, nausea, pain, swelling, or redness at the injection site. Most of these side effects will gradually resolve over time without requiring medical attention. However, if these side effects persist or worsen, please consult your doctor.
Do not use Gretacal Injection if you are allergic to any of its ingredients or if you have hypercalcaemia (high calcium levels in the blood), hypercalciuria (high calcium levels in urine), or overactive parathyroid glands (hyperparathyroidism). Your doctor will likely order a blood test before starting treatment with Gretacal Injection to ensure it is safe for you.
Gretacal Injection should be used during pregnancy only if prescribed by your doctor, as it is unknown whether the medication causes harm to the unborn baby. Please consult your doctor if you are pregnant or planning to become pregnant before using Gretacal Injection.
Gretacal Injection is primarily used to treat severe hypocalcaemia (low blood calcium levels). It is also used to treat calcium deficiency tetany and to help protect the heart during certain emergencies caused by dangerously high potassium levels. Your doctor can explain why this treatment has been recommended for your condition.
Gretacal Injection is given as a slow injection or intravenous infusion by a trained healthcare professional in a hospital or clinical setting. It should never be self-administered at home. Speak with your healthcare provider if you would like more information about the procedure.
Yes. If the medicine accidentally leaks outside the vein during the injection, it may cause severe pain, burning, swelling, or damage to the surrounding tissues. Tell your doctor or nurse immediately if you notice discomfort while the injection is being given.
Your doctor will monitor your blood calcium levels and kidney function to make sure the treatment is working effectively and to reduce the risk of your calcium levels becoming too high. Your healthcare provider will let you know how often these tests are needed.
Tell your doctor if you have had kidney stones or kidney disease before receiving this medicine. Calcium treatment may increase the risk of further stone formation in some people, so your doctor will carefully assess whether this medicine is appropriate for you. Your doctor can guide you based on your medical history.
A temporary feeling of warmth, flushing, or mild dizziness may occur, especially if the injection is given too quickly. Tell your doctor or nurse immediately so the infusion rate can be adjusted if necessary. Your healthcare provider will monitor you until you feel comfortable.
If you are breastfeeding, discuss this treatment with your doctor before receiving the injection. Your doctor will carefully consider the expected benefits and any potential risks before recommending treatment. Speak with your healthcare provider for personalised advice.
Yes. This medicine may interact with several medicines, including digoxin, certain antibiotics, and thiazide diuretics. Always give your doctor a complete list of all prescription medicines, over-the-counter medicines, vitamins, herbal products, and supplements before receiving this treatment. Your healthcare provider can advise whether any adjustments are needed.

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Country of origin

India

Manufacturer/Marketer address

Sandoz House, Shiv Sagar Estate, Worli Mumbai -400 018, India
Other Info - GRE0127
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