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Lorezen 8mg Injection

Written By Dr. Subita Alagh, BDS
Reviewed By Dr. Mekhala Chandra, MD, MBBS
Last updated on 24 Sep 2025 | 12:30 PM (IST)
Lorezen 8mg Injection is a pain-relieving medicine. It is used for short-term treatment of mild to moderate postoperative pain. It is usually given in cases where oral administration is unsuitable especially after a dental surgery.
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Lorezen 8mg Injection
Lorezen 8mg Injection
vial of 2 ml Injection
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General Information

The content is shown in English
Lorezen 8mg Injection image
Lorezen 8mg Injection image

Product introduction

Lorezen 8mg Injection is generally administered by a healthcare professional. You should not self-administer this medicine at home. The dose and duration will depend on what you are taking it for and how well it helps your symptoms. You should keep receiving the medicine until the doctor says it is okay to stop using the medicine.

The most common side effects of this medicine include headache, flushing, insomnia, and injection site reactions. If any of these side effects persist or get worse, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the symptoms.

Before using it, you should let your doctor know if you have a history of stomach ulcers, heart diseases, high blood pressure, and liver or kidney disease. Let your doctor also know about all the other medicines you are taking because they may affect, or be affected by, this medicine.

This medicine is not recommended for pregnant or breastfeeding women. Pregnant and breastfeeding mothers must consult with their doctors before using the medicine. Your doctor may also regularly monitor your kidney function, liver function, and levels of blood components if you are taking this medicine for long-term treatment.

Uses of Lorezen Injection

Benefits of Lorezen Injection

Pain relief
Lorezen 8mg Injection is used for short-term relief of pain in cases where it is not possible to take a pain killer by mouth like in the case of surgery. It works by blocking chemical messengers in the brain that tell us we have pain.
It is given as an injection by a doctor or nurse and should not be self-administered. The dose and duration will be decided by the doctor depending on the condition you are being treated for. This will help you to go about your daily activities more easily and have a better, more active, quality of life.

Side effects of Lorezen 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 Lorezen
  • Insomnia (difficulty in sleeping)
  • Injection site reactions (pain, swelling, redness)
  • Headache
  • Flushing (sense of warmth in the face, ears, neck and trunk)

How to use Lorezen Injection

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

How Lorezen Injection works

Lorezen 8mg Injection is a non-steroidal anti-inflammatory drug (NSAID). It works by blocking the release of certain chemical messengers that are responsible for inflammation (pain and swelling).

Quick tips

  • Inform your doctor if you have ever been diagnosed with kidney or liver problems.
  • It can cause serious complications like stomach bleeding and kidney problems if taken for a long time.
  • Lorezen 8mg Injection can raise your risk of blood clots, heart attack, or a stroke.
  • Inform your doctor if you are pregnant or planning to conceive or breastfeeding.

Safety advice

Alcohol

Alcohol

CAUTION
Caution is advised when consuming alcohol with Lorezen 8mg Injection. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
Lorezen 8mg Injection is unsafe to use during pregnancy as there is definite evidence of risk to the developing baby. However, the doctor may rarely prescribe it in some life-threatening situations if the benefits are more than the potential risks. Please consult your doctor.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Information regarding the use of Lorezen 8mg Injection during breastfeeding is not available. Please consult your doctor.
Driving

Driving

UNSAFE
Lorezen 8mg Injection may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Kidney

Kidney

SAFE IF PRESCRIBED
Lorezen 8mg Injection is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of Lorezen 8mg Injection may not be needed in these patients. Please consult your doctor.
Liver

Liver

CAUTION
Lorezen 8mg Injection should be used with caution in patients with liver disease. Dose adjustment of Lorezen 8mg Injection may be needed. Please consult your doctor.

Interaction with drugs

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

Tacrolimus (Oral Route)

If concurrent use is essential, your doctor may monitor your tacrolimus levels, potassium levels and kidney function closely. They may adjust the doses as per the observations.
Severe

Methotrexate (Injection Route)

Please consult with your doctor. Doctor may monitor liver function and blood cell counts.
Severe

Methotrexate (Injection Route)

Please consult with your doctor. Doctor may monitor liver function and blood cell counts.
Severe

Methotrexate (Injection Route)

Please consult with your doctor. Doctor may monitor liver function and blood cell counts.
Severe

Methotrexate (Injection Route)

Please consult with your doctor. Doctor may monitor liver function and blood cell counts.

Fact Box

Chemical Class

Amino acids and Derivatives

Habit Forming

No

Therapeutic Class

PAIN ANALGESICS

Action Class

Non-Selective COX 1 & 2 Inhibitors (Enolic Acid Derivatives)
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100% genuine products
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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: Zencus Pharma
Address: SCF-519, 2nd Floor, Motor Market Manimajra New Motor Market, Chandigarh -160101,India

Vendor Details

Country of origin: India
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Prescriptions are complex documents. We proof read and recheck at various steps to provide you the right medication in the correct form and dose
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In accordance with the law
Most medicines cannot be sold without a valid prescription, as per the Drugs and Cosmetics Act, 1940 and Rules, 1945
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