Reactin 100 Sr Tablet 10

Cipla Ltd.

STRIP of 10 Units
STRIP of 15 Units

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Old MRP ₹74.41

MRP ~~₹69.75~~

₹34.81

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Composition

Diclofenac (100 Mg)

Reactin 100 SR Tablet is used to treat inflammation, pain, and stiffness associated with osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, and acute musculoskeletal injuries. This sustained-release formulation (Diclofenac) works by reducing prostaglandins, the chemicals that cause pain and inflammation, improving comfort and mobility.

Take this tablet as directed by your doctor. It’s important to follow the prescribed dosage carefully and avoid prolonged use without medical supervision. If you experience any side effects while using this medication, notify your doctor promptly.

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Reactin 100 SR Tablet is a sustained-release NSAID used for pain and inflammation management in conditions like osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, acute musculoskeletal injuries, back pain, postoperative pain, and menstrual cramps. It also provides relief from migraine attacks.

Follow these steps while taking Reactin-100 SR Tablet:

Swallow the tablet whole with a glass of water.
Avoid crushing, chewing or dividing the tablet.
You may take this medicine with or without food. If stomach upset occurs, consider taking it with meals.
Stay upright for at least 10 minutes after taking this medicine.
For any specific advice on how to take this medication, consult your doctor.

Reactin-100 SR Tablet is taken orally.

Reactin 100 SR Tablet may cause side effects such as stomach pain, nausea, vomiting, diarrhea, dizziness, headache, drowsiness, tinnitus, and edema (swelling). Consult your doctor if symptoms persist or worsen.

Managing the Side Effects:

Most side effects are temporary and generally harmless, which resolve on discontinuing the use of Reactin-100 SR Tablet. However, if you experience any serious side effects or worsening of any of the symptoms, please consult your doctor.

Here are some ways to manage common side effects:

Stomach pain: Consider taking Reactin-100 SR Tablet with meals to help reduce this effect.
Dizziness: Try taking this medicine at bedtime to avoid daytime dizziness.

Reactin-100 SR Tablet contains diclofenac (100 mg), which has a specific way of working in the body:

Cyclooxygenase Inhibition: Diclofenac operates in your body by inhibiting enzymes called cyclooxygenase (COX). These enzymes play a crucial role in making prostaglandins which are chemical messengers causing inflammation, pain, and fever.
Reduction in Symptoms: By putting a stop to the production of prostaglandins through COX inhibition, diclofenac helps reduce these symptoms. The extended-release formulation of this medicine ensures that it is gradually released into your body over several hours, ensuring long-lasting relief from discomfort.

Pregnancy

Reactin-100 SR Tablet is contraindicated during pregnancy. If you are pregnant or planning to conceive, make sure to discuss this with your doctor before starting this medicine.

Breastfeeding

Reactin-100 SR Tablet is contraindicated for breastfeeding or lactating women. Consult your doctor to understand the potential risks and benefits.

Alcohol

Concurrent use of alcohol and Reactin-100 SR Tablet could increase the risk of stomach irritation and bleeding. It's advisable to limit alcohol consumption while taking this medicine.

Liver

Caution is advised while taking Reactin-100 SR Tablet in case of mild to moderate liver impairment. It is not recommended for severe liver diseases. If you have liver problems, discuss them with your doctor before starting Reactin-100 SR Tablet. This medicine may affect liver function.

Kidney

Caution is advised before using Reactin-100 SR Tablet if you have a history of any kidney problems. It is a good idea to consult your doctor before taking this medicine.

Using Machines & Driving

As Reactin-100 SR Tablet can cause dizziness or drowsiness, caution is advised while driving or operating machinery until you know how it affects you.

Allergy

Avoid Reactin-100 SR Tablet if you're allergic to diclofenac or any other NSAIDs. If you've previously experienced an allergic reaction after taking similar medicines, consult your doctor before starting this medication.

Children

Reactin-100 SR Tablet is not recommended for children. Always consult your doctor before giving any medicine to a child.

Older Patients

Older patients should take Reactin-100 SR Tablet under medical supervision as they may be more susceptible to its side effects. Caution is advised if patients are above 70 years of age. Your doctor will guide you based on your health status.

Drug-Drug Interactions

Reactin-100 SR Tablet interacts with the following medicines:

NSAIDs like aspirin can decrease the levels of diclofenac in the body, which may reduce the effectiveness of Reactin-100 SR Tablet.
Anticoagulants such as warfarin: This interaction may increase the risk of bleeding.
ACE inhibitors and ARBs, such as enalapril and losartan, can reduce the blood pressure-lowering effect of Reactin-100 SR Tablet and increase the risk of kidney problems.
Diuretics like furosemide: There could be a reduced diuretic and antihypertensive effect, with an increased risk of kidney issues.
Cardiac glycosides like digoxin: The levels of digoxin can increase when taken with this medicine.
Lithium: Taking Reactin-100 SR Tablet with lithium could lead to increased lithium levels and toxicity.

Drug-Food Interactions

There are no specific known food interactions with Reactin-100 SR Tablet.

Drug-Disease Interactions

Reactin-100 SR Tablet interacts with the following diseases:

Asthma: Patients with asthma might experience allergic reactions after taking this medicine.
Peptic Ulcer Disease or GI bleeding: The medicine could potentially exacerbate these conditions.
Severe Heart Failure, Coronary Artery Disease, or Cerebrovascular Disease: It's recommended to use with caution in patients suffering from these conditions as it may worsen their health status.
Severe Liver or Kidney Impairment: These conditions could affect how this medication is processed in your body.

Daily Dose

The daily dose of Reactin-100 SR Tablet should be taken as prescribed by your doctor. The dosage may vary based on factors such as the severity of your condition and your body's response to this medicine. Always follow the prescribed dosage and don't exceed it without consulting your doctor. For further details regarding dosage, read the package insert.

Over Dose

If an overdose occurs, one may experience common side effects like stomach pain, dizziness, or rashes more intensely. In case this happens, consult your doctor, but do not panic. It's important not to take more than the recommended dose.

Missed Dose

If you realise you've missed a dose of Reactin-100 SR Tablet, take it as soon as you remember. But if it's nearly time for your next dose, skip the missed one and continue with your regular schedule. Never take extra medicine to compensate for a missed dose, and always consult your doctor if you're unsure.

Keep your Reactin-100 SR Tablet at room temperature, ideally between 20°C to 25°C.
Protect it from moisture and direct light.
Make sure the medicine is out of reach of children and pets.
Always check the expiry date before using your medicine.

If you're managing conditions like osteoarthritis or rheumatoid arthritis with Reactin-100 SR Tablet, consider incorporating gentle exercises into your routine. This can help keep your joints flexible and reduce stiffness.
Try a balanced diet rich in omega-3 fatty acids, such as fish or walnuts, known to have anti-inflammatory properties. This could complement the inflammation-reducing effect of your medicine. Please consult your doctor for personalised dietary advice.

Fact Box

Available Dosage Types	Tablet ER
Habit Forming	No
Ailment	Osteoarthritis, Rheumatoid Arthritis, Migraine
Drug Category	COX Enzyme Inhibitor
Therapeutic Category	Nonsteroidal Anti-Inflammatory

What is Reactin-100 SR Tablet used for?

Reactin-100 SR Tablet is used to manage pain, inflammation, and stiffness caused by conditions such as osteoarthritis, rheumatoid arthritis, and acute musculoskeletal injuries.

How does Reactin-100 SR Tablet work?

The medicine contains diclofenac, which reduces pain and inflammation by blocking the production of certain chemical messengers in the body.

Can I take Reactin-100 SR Tablet with other pain relievers?

Unless your doctor advises it, avoid combining this medicine with other NSAIDs, as it can increase the risk of stomach problems.

How soon will I feel the effects of Reactin-100 SR Tablet?

The medicine usually starts working within a few hours, but the maximum effect may take 2-4 weeks with regular use.

What should I do if I miss a dose of Reactin-100 SR Tablet?

If you miss a dose, take it as soon as you remember, but skip it if it's almost time for your next dose. Don't double up.

Can I take Reactin-100 SR Tablet during pregnancy or breastfeeding?

Diclofenac isn't recommended during pregnancy or breastfeeding due to potential risks. Always consult your doctor for advice.

Can I drink alcohol while taking Reactin-100 SR Tablet?

It's best to limit or avoid alcohol as it can increase the risk of stomach bleeding and liver problems.

Last Updated On 03 Feb. 2026 | 12:33PM (IST)

Certified Content

Written by

Dr Nikita Lobo

Medical Content Reviewer | 8 years

BDS, MDS

Reviewed by

Dr. Meenakshi Maruwada

Medical Content Writer | 9 years

BDS, PGCAD, GMHE (IIM-B)

Check out Editorial Policy

Manufacturer details

Cipla House, Peninsula Business Park, Ganpatrao Kadam Marg, Lower Parel, Mumbai-400013

Country of origin: INDIA

Expiry on or after: June 2026

In case of any issues, contact us:

support@truemeds.in|09240250346

Address: 6th floor, Urmi Corporate Park Solaris, Saki Vihar Road, Andheri East, Mumbai 400071

References

U.S. Food and Drug Administration. (n.d.). Diclofenac Sodium ERtab 20254_RC10-09. Retrieved 1 April 2024, from https://www.accessdata.fda.gov/drugsatfda_docs/psg/Diclofenac_Sodium_ERtab_20254_RC10-09.pdf
National Library of Medicine (US). (n.d.). Dailymed: Diclofenac Sodium Extended-Release. Retrieved 1 April 2024, from https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=ecaa39b8-067c-80d7-e053-2a95a90a7354&type=display

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Disclaimer

We, at Truemeds make a diligent attempt to deliver accurate, expert- drafted and thoroughly reviewed medicine related information to our consumers. However, it should, by no means, be considered a substitute for prescription from a certified doctor or a trustworthy doctor-patient relationship. In fact we detest any form of self medication without expert advice. The sole purpose of the information on our portal is to educate our consumers, which helps improve the communication between a doctor and a patient. The information by no means is complete in its entirety and should not be used to diagnose or treat any medical condition. No amount of information can replace the experience and expertise of a doctor, therefore his/her advice always holds priority and should be followed appropriately.

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