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Reactin SR 100 Mg (Diclofenac)

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Reactin SR 100 mg is a highly effective medicine for treating many types of pain, including muscle spasms, rheumatism, and general aches and pains. Inflammation, strain, stiffness, and sprains are relieved with it.

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60 Tablet/s AUD $30.67 (0.51 / Unit) Add To Cart
90 Tablet/s AUD $42.94 (0.47 / Unit) Add To Cart
120 Tablet/s AUD $53.68 (0.44 / Unit) Add To Cart
240 Tablet/s AUD $99.68 (0.41 / Unit) Add To Cart
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Active-IngredientDiclofenac
Manufacturers
Packaging1 Strip of 10 tablets
Strength100mg
Delivery-Time6 To 15 days
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SKU: N/A Category:
Last Updated on βœ” Medically Reviewed by Dr. Arjun Srivastav

What is Reactin SR 100 mg?

Reactin SR 100 mg is a prescription pain-relief medicine used to treat inflammation and moderate to severe pain. It contains the active ingredient Diclofenac in a sustained-release (SR) formulation.

The β€œSR” version is designed to release the medicine slowly over time, providing long-lasting relief often with just one dose per day.

The doctors can recommend you take this pill in different conditions, such as:

  • Headache
  • Migraines
  • Toothaches
  • Sore throat
  • Period pain in females
  • Mild arthritis
  • Common cold
  • Muscle pain

It helps relieve joint pain and reduces signs like high body temperature, swelling, and inflammation.

Manufacturer

Cipla Ltd. is the manufacturer of the Reactin SR 100 mg pills and all its other variants in Australia.

Composition

The generic element inside the medicine is Diclofenac.

Medical uses of Reactin SR 100 mg in Pain Management

The medical uses of the Reactin SR 100 mg in pain management offer a vast use. It can treat any kind of common pain issues, like those in small injuries, muscle spasms, neck pain, and so on.

Other than this, the medical condition where the doctors may specifically recommend a longer dose is for rheumatoid arthritis.

Benefits of Taking Reactin SR 100 mg (Diclofenac) pills

Physical benefits

  • Use of the Reactin SR 100mg pills helps you to get rid of a fever in a few hours.
  • It helps to relieve body pain and aches.
  • It gets rid of mild arthritis pain.

Psychic benefits

It helps to get rid of the mental anxiety and depression that stem from severe pain.

How does Reactin SR 100 mg work?

Reactin SR tablet belongs to a group of medicines called NSAIDs (Non-Steroidal Anti-Inflammatory Drugs).

Reactin SR functions as an inhibitor. By blocking the COX enzymes, the medication reduces the production of prostaglandins. With fewer prostaglandins circulating at the site of the inflammation, the body’s inflammatory response is blunted, leading to:

  1. Reduction in pain.

  2. Decrease in swelling (edema).

  3. Improved mobility and flexibility in joints.

πŸ‘‰ This is why Diclofenac is widely used for inflammatory conditions.

How to Take Reactin SR 100 mg tablet

  • The reactin sr 100 mg Australia is fast to begin working and is activated within 30 minutes.
  • To use it, all you have to do is swallow the medicine with water.
  • Do not break it or swallow it with alcohol.
  • Take it with water and swallow it whole.

Reactin SR 100 mg- How long does it last?

Each action of a dose of 100 mg Reactin can last easily for 6 to 8 hours, depending on the health condition of the patient.

Is Reactin SR 100 mg for elderly patients?

Reactin SR 100 mg is suitable for elderly patients, even above the age of 60. However, the higher the age, the more cautiously the doctors will recommend the medicine to you.

Correct dosage guidelines for Reactin SR 100 mg pills

The doctors will tell you to use it 1 to 2 times a day after meals.

Β Overdose

Avoid suddenly increasing the dose as it can cause many side effects.

Miss dose

Do not forget to take your medicine on time.

Reactin SR 100 mg vs Fast-Acting Painkillers
Feature Reactin SR 100 mg Fast-Acting Painkillers
Onset Time Slower (1–2 hrs) Fast (15–30 mins)
Duration Long (up to 24 hrs) Short (4–6 hrs)
Dosing Once daily Multiple doses
Best For Chronic pain Acute pain
Consistency Steady relief Peaks and dips

Side Effects of Reactin SR 100 mg

Like all medications, Diclofenac 100 mg tablet can cause side effects, though not everyone will experience them. Being aware of them helps you stay proactive about your health.

Headache: Some people may feel slightly lightheaded after taking the dose.

Skin Rash: A mild itching or redness.

Stomach Bleeding: Indicated by black/tarry stools or vomiting blood (which may look like coffee grounds).

Allergic Reactions: Swelling of the face, lips, or throat, or difficulty breathing.

Kidney or Liver Issues: Yellowing of the skin (jaundice), persistent dark urine, or unusual fatigue.

Drug Interaction Classification

  • Opioid medicines
  • Other forms of painkillers
  • Ant-allergic medicines
  • Pills used for autoimmune conditions
  • Sedatives

Mostly, these medicines increased the risks of many side effects like severe diarrhea, sleep issues, flushing, and so on.

πŸ‘‰ Always inform your doctor about all medicines you take.

βœ… When to seek medical help?

If you have other health issues:

Use of Reactin SR 100 mg is not safe as per doctors if the patient has other health issues, like-

  • Allergic conditions
  • Stomach infections
  • Critical kidney disorders

If you have allergic problems:

Avoid taking the medicine, it causes issues like-

  • Swelling of the limbs, throat, and face
  • Rashes on the skin

Precautions and warnings with Reactin SR 100mg Australia

Pregnancy

The FDA guidance and instructions for use of Reactin SR 100 mg tablet in pregnancy are safe, but have to be controlled by the doctor and may be given for a short term. In case the woman starts to show side effects, other medicines will be combined with it.

Breastfeeding

Studies of breastfeeding mothers did not show any major interaction. However, you should use this only with a doctor’s approval while breastfeeding.

Addictions

Use of addictions may cause some of the side effects of Reactin SR 100 mg to become severe. On the other hand, other studies show that it can inhibit drug actions too.

Driving

Doing any activity that needs focus and attention is risky if you feel like having a headache, nauseated, sleepy, or tired.

πŸ“’ Safety Advice

Avoid alcohol if you have heart disease, kidney disease, or liver disease, and avoid it while pregnant. Overdose symptoms include severe stomach pain and black stools, so never exceed the prescribed dose or double it.

πŸ‘‰ Always consult a healthcare professional for personalized medical advice.

Storage and disposal guidelines

To store the Reactin SR 100mg, you do not need to keep the sachet of the pills in a fridge. You can easily keep it under normal room temperature conditions, but avoid the highly humid areas of the house for storing it long-term storage.

Is Reactin SR 100 mg legal in Sydney?

Yes, it is legal to Reactin SR 100 mg provided you are buying it from a registered online pharmacy website, australiarxmeds.com, or a medicine retail shop in Sydney using a prescription.

Where to buy Reactin SR 100 mg in Australia?

To get the buy Reactin SR 100 mg in Australia, check out our online pharmacy Australiarxmeds today and secure your medicines from the best online pharmacy in the country at the lowest rates.

FAQs

Can Reactin SR 100 mg (Diclofenac) because drug depended?

No, until date no signs of major drug dependence or habit-forming issues have been found in anyone.

Is Reactin safe for every day purposes?

Doctors can tell you to use anywhere between 1 to 3 pills per day depending on the condition and the type of severity. However, you can also use the Reactin SR 100 mg as per need basis that is when you suffer from fever or body pain suddenly.

Is it safe to take Reactin SR 100 mg with skin allergies?

Well, there is no evidence that Reactin SR 100 mg may interact with any anti-allergic skin medicine or cause your skin infections or allergies to become severe.

How fast can Reactin SR 100 mg get rid of fever?

However, for curing severs fever issues, it may need up to a week. Do not stop taking your medicines until the entire course is complete or else the symptoms may come back.

Will the doctors tell me to have some changes in my daily life too?

Along with the use of Reactin SR 100 mg, you have to take a good diet, get rid of fast and processed foods, do yoga and exercises to heal back pain and joint swelling problems, do different exercises for relief, and stop avoiding the use of any kind of addiction.

Active-IngredientDiclofenac
Manufacturers
Packaging1 Strip of 10 tablets
Strength100mg
Delivery-Time6 To 15 days

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About the Doctor

Dr. Arjun Srivastav

Medical Reviewer (Pharm D)

βœ” Medically Reviewed β€’ Updated: 04/28/2026

Education: Graduate Diploma in Clinical Practice - University of Sydney,

Clinical Pharmacist (Pharm D) Doctor of Medicine (MD) – University of Melbourne Biomedical Engineering – Monash University Graduate Diploma in Clinical Practice - University of Sydney, Arjun Srivastav is a dedicated Clinical Pharmacologist and the E-commerce Operations Manager at AustraliaRxMeds. With a Doctor of Pharmacy (Pharm D) and over 10 years of clinical experience at prestigious institutions like Wockhardt and Apollo Hospitals, Arjun specializes in drug safety, digital healthcare accessibility,...

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