Medicines for Knee Arthritis Pain

Medicines can reduce knee arthritis pain and make movement, sleep or rehabilitation easier, but they do not cure osteoarthritis. The safest option depends on the expected benefit and the patient’s kidney, liver, stomach, heart, blood-pressure, bleeding, balance and medicine-interaction risks.

Quick Answer

• Medicines should support diagnosis, exercise and load management.

• Topical anti-inflammatory treatment may be considered before tablets for many patients.

• Oral anti-inflammatory medicines can help selected patients but need medical-risk screening.

• Routine long-term opioid treatment is generally undesirable.

• Use the lowest effective amount for the shortest appropriate period and review whether function improves.

Define the Purpose Before Starting

The goal may be easier walking, improved sleep, participation in physiotherapy or control of a temporary flare. Continued use should be judged against that functional goal. A medicine that produces little benefit or significant adverse effects should not be continued automatically.

Topical Anti-Inflammatory Medicines

Topical non-steroidal anti-inflammatory drugs are commonly applied as gels and generally create lower systemic exposure than tablets. They may still cause skin irritation and some systemic absorption. The treated area, frequency and concurrent use of oral anti-inflammatory medicines should be reviewed.

Oral Anti-Inflammatory Medicines

Oral NSAIDs may reduce pain and improve function in selected patients. Important risks include gastritis, ulcer or gastrointestinal bleeding, kidney injury, fluid retention, increased blood pressure and cardiovascular complications. Particular caution is needed with kidney disease, heart failure, previous ulcer, anticoagulant use or uncontrolled blood pressure.

Paracetamol or Acetaminophen

Paracetamol may provide limited relief for some patients but does not have the same anti-inflammatory action as an NSAID. Excess use can damage the liver, and several cold, fever or pain products may contain the same ingredient. Patients should compare active ingredients and follow professional or labelled limits.

Other Prescription Pain-Modulating Medicines

Persistent pain may involve sleep disturbance, sensitisation or more than one pain source. Selected patients may be considered for other prescription medicines, but these are not routine arthritis cures and can cause dizziness, nausea, sedation or interactions. The pain mechanism should be reassessed before escalating treatment.

Opioids and Tramadol

Opioid-type medicines may cause drowsiness, constipation, nausea, falls, dependence and impaired driving. They are not a preferred routine long-term strategy for knee osteoarthritis. Exceptional short-term use should not replace definitive reassessment when pain or disability is severe.

Supplements and Herbal Products

Glucosamine, chondroitin, turmeric, herbal combinations and vitamins are widely marketed, but evidence and product quality vary. Natural does not mean harmless. Supplements can interact with anticoagulants, diabetes medicines, blood-pressure treatment or liver disease and should be disclosed like any other medicine.

How Medication Is Selected

1. Confirm that knee arthritis is the main pain source.

2. Review prescriptions, over-the-counter products and supplements.

3. Assess kidney, liver, stomach, cardiovascular and bleeding risk.

4. Choose the least risky option likely to provide useful benefit.

5. Define the intended duration and functional outcome.

6. Review adverse effects and stop ineffective treatment.

7. Escalate the overall arthritis plan rather than repeatedly increasing medication.

Questions to Review Before Taking Pain Medicine

• Do I have kidney disease, heart failure or uncontrolled blood pressure?

• Have I had an ulcer, gastrointestinal bleeding or severe acidity?

• Am I taking aspirin, anticoagulants, steroids or another NSAID?

• Do I have liver disease or significant alcohol use?

• Could this medicine affect alertness, balance or driving?

• How long should I use it, and which symptoms mean I should stop?

Medication and Physiotherapy

Temporary pain reduction may make strengthening and walking practice easier. Reduced pain does not mean unlimited loading is safe; activity should still be progressed according to technique, swelling and the next-day response.

Read Physiotherapy for Knee Arthritis.

Medication and Knee Injections

An injection may be considered when suitable medicine and exercise do not provide enough relief or when tablets are inappropriate. Corticosteroid, hyaluronic acid, PRP and GFC differ in evidence, cost, candidate selection and limitations. No injection guarantees cartilage regrowth or permanent avoidance of replacement.

Related guides: Cortisone Injection, Hyaluronic Acid Injection and PRP Injection.

When Medicines Are No Longer Enough

Reassess the plan when pain remains frequent, walking and sleep are substantially affected, medicines are poorly tolerated, deformity progresses or repeated courses provide no durable functional improvement. The next step may be revised rehabilitation, weight-management support, a selected injection or a knee replacement discussion depending on disease stage and goals.

Read Non-Surgical Knee Arthritis Treatment in Mumbai.

Common Medication Mistakes

• Combining two anti-inflammatory medicines without medical advice.

• Taking several products that contain paracetamol.

• Continuing an ineffective medicine for months.

• Ignoring kidney, stomach, heart or bleeding risk.

• Using sedating medicine before driving.

• Stopping blood thinners independently before an injection or surgery.

• Treating progressive disability only by increasing the dose.

Warning Signs and Adverse Effects

Black stools, vomiting blood, severe abdominal pain, reduced urine output, facial swelling, breathing difficulty, chest pain, sudden weakness, confusion or a severe allergic reaction require urgent medical attention. A hot red swollen knee with fever needs assessment rather than simply stronger pain medicine.

Questions Patients Commonly Ask

Which tablet is best for knee arthritis?

There is no universally best tablet. The choice depends on expected benefit, medical history, current medicines and individual risk.

Can painkillers be taken every day?

Some medicines may be used for a defined period under supervision, but daily long-term use without review can be unsafe and may hide progression.

Are topical gels safer than tablets?

They generally create lower systemic exposure, but skin reactions and some systemic absorption remain possible.

Can two anti-inflammatory medicines be combined?

Combining NSAIDs can increase harm and should not be done unless specifically directed by a clinician.

Should blood thinners be stopped before an injection?

Do not stop anticoagulants independently. The clinician planning the procedure must review the specific medicine and bleeding risk.

Clinical References

NICE NG226: Osteoarthritis in over 16s—diagnosis and management

AAOS Clinical Practice Guideline: Management of Osteoarthritis of the Knee (Non-Arthroplasty)

American College of Rheumatology Osteoarthritis Guideline

About Dr. Mayur Rabhadiya

Dr. Mayur Rabhadiya is an Orthopedic and Joint Replacement Surgeon in Mumbai. Qualifications: MBBS, D’Ortho, DNB (Orthopedics), MNAMS (Orthopedics), FIJR (Robotic & Navigation). Read his professional profile.

Book a Consultation

Consultations are available in Ghatkopar East and Ghatkopar West, Mumbai. Call or WhatsApp +91 84249 03913 or +91 96113 30063, or use the appointment page.

Medical Author and Reviewer

Written and medically reviewed by Dr. Mayur Rabhadiya, MBBS, D’Ortho, DNB (Orthopedics), MNAMS (Orthopedics), FIJR (Robotic & Navigation). Last medically reviewed: 17 July 2026.

Medical Disclaimer

This guide provides general education and does not replace individual medical examination or a prescription. Do not start, combine, stop or change prescribed medicines without appropriate clinical advice.