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Cor 9 500mg/2ml Injection

Hydroxyprogesterone (250mg/ml)

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Cor 9 500mg/2ml Injection is used to prevent premature labor in pregnant women in order to reduce the risk of giving birth too early (preterm birth). It prevents miscarriage and lowers the risk of premature birth in women who have had one premature delivery in the past.

Written By Dr. Syeda Aafia, MBA, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 11 Mar 2026 | 05:36 PM (IST)

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1 Injection

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General Information

Contains

Hydroxyprogesterone (250mg/ml)

Marketer

Corona Remedies Pvt Ltd

Storage

Store below 30°C

Preservative

Benzyl Alcohol

The content is shown in English

Product introduction

Cor 9 500mg/2ml Injection is administered only by or under the supervision of a doctor. It should be taken as your doctor advice. Your doctor will decide how much you need to take and for how much time. You should take this injection for as long as it is prescribed for you.

The most common side effects of this medicine include local site reactions at the injection site, nausea, itching, diarrhea, and rash. If any of these bothers you, let your doctor know. There may be ways of reducing or preventing them. It may affect blood sugar levels, so monitor your blood sugar regularly. It is better to inform the doctor if you notice yellowing of eyes or skin, dark urine, or stomach pain while using this medicine.

Before taking this medicine inform doctor, if you have ever had any problems with your blood circulation or have diabetes, or any liver disease. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works.

Uses of Cor Injection

Prevention of Premature Labor

Benefits of Cor Injection

Prevention of Premature Labor
Cor 9 500mg/2ml Injection is a man-made form of the female hormone called progesterone, that helps lower the risk of delivering the baby too early (premature labor), particularly in women who have had this complication in an earlier pregnancy. Progesterone is a hormone that thickens the lining of the uterus and prepares it for the growth and development of the baby. So, it helps your uterus grow during pregnancy and also prevents any contractions that can otherwise lead to miscarriage.

Side effects of Cor 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 Cor

Injection site pain
Injection site swelling
Red spots or bumps
Rash

How to use Cor Injection

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

How Cor Injection works

Cor 9 500mg/2ml Injection is a progestin (female hormone).

All substitutes for Cor 9 500mg/2ml Injection

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

Quick tips

Cor 9 500mg/2ml Injection is used in pregnant women to help lower the risk of giving birth too early (preterm birth).
It is only given to a woman who has had a preterm delivery in the past.
It is not for use in women who are pregnant with more than one baby (twins, triplets, etc.).
It is administered only by or under the immediate supervision of your doctor. Your doctor can start giving you the injection every week between 16 and 20 weeks and continue through week 37, or until you deliver.
It may affect blood sugar levels. Monitor your blood sugar regularly.
Inform your doctor if you notice yellowing of eyes or skin, dark urine, or stomach pain. These could be symptoms of a serious liver problem.
Inform your doctor immediately if you have pain in the chest, groin or legs, difficulty with breathing, sudden severe headache, slurred speech, sudden unexplained shortness of breath, a sudden loss of coordination, or vision changes while using this medicine.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Cor 9 500mg/2ml Injection. Please consult your doctor.

Pregnancy

SAFE IF PRESCRIBED

Cor 9 500mg/2ml Injection is safe to use during pregnancy. Most studies have shown low or no risk to the developing baby.

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

SAFE

Cor 9 500mg/2ml Injection does not usually affect your ability to drive.

Kidney

CAUTION

Cor 9 500mg/2ml Injection should be used with caution in patients with kidney disease. Dose adjustment may be needed.
This medicine contains progesterone which can cause fluid retention in patients with underlying kidney disease.

Liver

UNSAFE

Cor 9 500mg/2ml Injection is unsafe to use in patients with liver disease and should be avoided.

Interaction with drugs

Taking Cor with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Tamoxifen (Oral Route)

Do not consume Tamoxifen with Hydroxyprogesterone if you have or had breast cancer. If essential, consult your doctor. Hydroxyprogesterone may reduce the efficacy of Tamoxifen.

Severe

Letrozole (Oral Route)

Do not consume Letrozole with Hydroxyprogesterone if you have or had breast cancer. If essential, consult your doctor.

Severe

Anastrozole (Oral Route)

Do not consume Anastrozole with Hydroxyprogesterone if you have or had breast cancer. If essential, consult your doctor. Hydroxyprogesterone may reduce the efficacy of Anastrozole.

Severe

Raloxifene (Oral Route)

Do not consume Raloxifene with Hydroxyprogesterone. If concurrent use is essential, please consult your doctor. Hydroxyprogesterone may reduce the efficacy of Raloxifene.

Severe

Darunavir (Oral Route)

It is recommended to use barrier methods (like condoms), IUDs, or a depot for contraception. Your doctor may monitor your treatment closely and adjust the doses as per the observations. Use barrier methods (like condoms) for contraception to reduce the risk of HIV infection.

Frequently asked questions

What is Cor 9 500mg/2ml Injection? What is it used for?

Cor 9 500mg/2ml Injection is a type of female sex hormone called progesterone. It helps to lower the risk of preterm delivery (early birth) in a pregnant woman, who had delivered a preterm baby in the past.

How and in what dose should I use Cor 9 500mg/2ml Injection?

Cor 9 500mg/2ml Injection is given as an injection, by a doctor or trained nurse. The dose will be decided by your doctor, depending on your exact medical condition.

What if I miss a dose of Cor 9 500mg/2ml Injection?

Ideally, you should try not to miss any dose. However, if you miss a dose consult with your doctor as soon as you remember.

Who should not receive Cor 9 500mg/2ml Injection?

Cor 9 500mg/2ml Injection should not be used if you have: -blood clots or other blood clotting problems now or in the past -high blood pressure that is not controlled -liver problems, including liver tumors -breast cancer or other hormone-sensitive cancers now or in the past -unusual vaginal bleeding not related to your current pregnancy -yellowing of your skin due to liver problems during your pregnancy.

Fact Box

Chemical Class

Gluco/mineralocorticoids, progestogin derivative

Habit Forming

Therapeutic Class

GYNAECOLOGICAL

Action Class

Progestins (First generation)

References

Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 671-72.
Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 03 Apr. 2019] (online) Available from:
Hydroxyprogesterone Caproate Injection [Package Insert]. Ranipur, Uttarakhand: Akums Drugs & Pharmaceuticals Ltd. [Accessed 05 Jul. 2023]. (online) Available from:
Hydroxyprogesterone Caproate Injection [Prescribing Information]. Waltham, MA: AMAG Pharmaceuticals, Inc.; 2022. [Accessed 05 Jul. 2023]. (online) Available from:

User feedback

Patients taking Cor 9 500mg/2ml Injection

Once A Week

67%

Once A Day

14%

Once A Month

12%

Twice A Month

Four Times A Day

What are you using Cor Injection for?

Premature Labor

78%

Others

22%

How much was the improvement?

Average

48%

Excellent

41%

Poor

11%

What were the side-effects while using Cor 9 500mg/2ml Injection?

Diarrhea

25%

No Side Effect

25%

Hives

25%

Itching

25%

How do you take Cor Injection?

With or without food

60%

With food

40%

Please rate Cor 9 500mg/2ml Injection on price

Average

47%

Not Expensive

40%

Expensive

13%

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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: Corona Remedies Pvt Ltd
Address: Vill. Jatoli, PO Oachghat, Tehsil and Distt. Solan, HP-173223

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Cor 9 500mg/2ml 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 ℞ 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

Lab tests offered by us

Why we need a prescription?

Cor 9 500mg/2ml Injection

Save more with additional offers

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General Information

Contains

Marketer

Storage

Preservative

Product introduction

Uses of Cor Injection

Benefits of Cor Injection

Side effects of Cor Injection

How to use Cor Injection

How Cor Injection works

All substitutes for Cor 9 500mg/2ml Injection

Proluton Depot 500mg/2ml Injection

Proluton Depot 250mg/ml Injection

Prorone Depot 500 Injection

Prorone Depot 250 Injection

Recogest-H 250mg Injection

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Tamoxifen (Oral Route)

Letrozole (Oral Route)

Anastrozole (Oral Route)

Raloxifene (Oral Route)

Darunavir (Oral Route)

Frequently asked questions

What is Cor 9 500mg/2ml Injection? What is it used for?

How and in what dose should I use Cor 9 500mg/2ml Injection?

What if I miss a dose of Cor 9 500mg/2ml Injection?

Who should not receive Cor 9 500mg/2ml Injection?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

References

User feedback

Patients taking Cor 9 500mg/2ml Injection

What are you using Cor Injection for?

How much was the improvement?

What were the side-effects while using Cor 9 500mg/2ml Injection?

How do you take Cor Injection?

Please rate Cor 9 500mg/2ml Injection on price

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

Lab tests offered by us

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