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Gretacal Injection is prescription medicine having a combination of medicines that is used in the treatment of calcium deficiency. This medicine helps in improving the strengthening of the bones.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 25 Nov 2025 | 03:07 PM (IST)
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10 ml Injection
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General Information

Contains

Calcium Gluconate (50mg)+ Calcium Lactobionate (87.5mg)

Marketer

Oaknet Healthcare Pvt Ltd

Storage

Store below 25°C
The content is shown in English
Gretacal Injection image
Gretacal Injection image
Gretacal Injection image

Product introduction

Gretacal Injection injection is administered under the supervision of a healthcare professional. You are not advised to self administer this injection. Inform your doctor if you have any known allergy from this medication.

You may experience symptoms of injection site reactions such as redness, swelling, and pain. Usually, they go away with time but if these symptoms persist for a longer duration, please consult your doctor. Inform your doctor if you are suffering from any disease or are taking any medicines.

Uses of Gretacal Injection

  • Calcium deficiency

Benefits of Gretacal Injection

Calcium deficiency
Calcium is a mineral that is essential for proper bone growth and function. Your heart, muscles, and nerves also need calcium to function properly. Gretacal Injection helps treat calcium deficiency (hypocalcemia) if you do not get enough calcium from your diet. Gretacal Injection works by increasing the levels of calcium in your body. The advantage of taking Gretacal Injection over tablets is that it it is absorbed by the body quickly and gives effective results. However, you should always take Gretacal Injection under a doctors supervison and recommendation. Along with this, you can also ask your doctor for a diet rich in calcium in order to improve its level.

Side effects of Gretacal Injection

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Gretacal
  • Injection site reactions (pain, swelling, redness)

How to use Gretacal Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How Gretacal Injection works

Gretacal Injection is a nutritional supplement containing two calcium salts: Calcium Gluconate and Calcium Lactobionate which treat calcium deficiency. Calcium is a mineral, essential for several body functions, including the formation of strong bones. It is also necessary for nerve, muscle and heart function as well as for certain hormonal functions.

All substitutes for Gretacal Injection

For information purposes only. Consult a doctor before taking any medicine.

Calcium Sandoz Injection

by Dr Reddy's Laboratories Ltd
₹118.13/injection
56% costlier
<h3 class=bodySemiBold>Calcium Sandoz Injection</h3>

Gluci Injection

by Neon Laboratories Ltd
₹94.3/injection
24% costlier
<h3 class=bodySemiBold>Gluci Injection</h3>

Gluci Injection

by Neon Laboratories Ltd
₹202.5/injection
167% costlier
<h3 class=bodySemiBold>Gluci Injection</h3>

Quick tips

  • Gretacal Injection is used in the treatment of calcium deficiency.
  • Inform your doctor if you have kidney problems, or if you have ever had kidney stones.
  • Let your doctor know if you are taking any other medications like antihypertensives, antibiotics, or medicines for heart disease or bone disorders.
  • Inform your doctor if you are taking an iron supplement, as the absorption rate might be affected.
  • Include calcium-rich food in your diet like milk, cheese, yogurt, calcium-fortified soya milk, and green leafy vegetables like spinach.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Gretacal Injection. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Gretacal Injection during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

SAFE IF PRESCRIBED
Available human data suggest that the drug does not pass into breast milk in clinically significant amounts and is unlikely to harm the infant.
Driving

Driving

CONSULT YOUR DOCTOR
It is not known whether Gretacal Injection alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.
Kidney

Kidney

CAUTION
Gretacal Injection should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

SAFE IF PRESCRIBED
Gretacal Injection is probably safe to use in patients with liver disease. Limited data suggest dose adjustment may not be needed.

Frequently asked questions

Gretacal Injection is used to treat low calcium levels in the blood, especially when quick correction is needed in a hospital or emergency setting.
Combining calcium gluconate and calcium lactobionate in Gretacal Injection allows for stable delivery of calcium into the bloodstream, helping maintain consistent levels with fewer side effects during infusion.
Since Gretacal Injection is delivered directly into the bloodstream, calcium levels can start improving within minutes, with symptom relief often seen shortly after.
Yes, Gretacal Injection may be used under supervision to manage calcium imbalances in patients undergoing dialysis, especially when oral supplements are not enough.
Yes, Gretacal Injection is commonly used post-surgery when the parathyroid glands are affected and can not regulate calcium, leading to sudden drops in blood calcium levels.
If there is no improvement in the symptoms after receiving Gretacal Injection, your doctor will reassess calcium levels, check for other imbalances (like magnesium or vitamin D), and adjust treatment as needed.

Fact Box

Habit Forming

No

Therapeutic Class

VITAMINS MINERALS NUTRIENTS

References

  1. Combs Jr. GF, McClung JP. The Vitamins: Fundamental Aspects in Nutrition and Health. 5th ed. Westborough, MA: Academic Press; 2017.
  2. Coates PM, Betz JM, Blackman MR, et al. (Editors). Encyclopedia of Dietary Supplements. 2nd ed. Boca Raton, FL: CRC Press; 2010.
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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Oaknet Healthcare Pvt Ltd
Address: 64, Dodda Banaswadi Main Rd, Annaiah Reddy Layout, Banswadi, Bengaluru, Karnataka 560043

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Gretacal Injection. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's â„ž and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

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