Feldene (Piroxicam) – Patient Information (Australia)

Feldene is a brand of piroxicam, a medicine from the group of anti-inflammatory medicines known as NSAIDs (non-steroidal anti-inflammatory drugs). It is used to relieve pain and inflammation associated with certain long-term joint conditions and painful musculoskeletal problems.

This guide is designed to help you understand how Feldene works, what it’s used for, how to take it safely, and what to watch for. Always follow the directions provided by your healthcare professional and the product packaging.

Quick product facts

How Feldene works (mechanism of action)

Piroxicam works by reducing the production of certain chemicals in the body called prostaglandins. Prostaglandins contribute to pain, swelling (inflammation), and fever.

Like other NSAIDs, Feldene inhibits enzymes involved in prostaglandin production (commonly described as COX enzymes). The overall effect is:

• Less inflammation around joints and soft tissues
• Reduced pain
• Improved mobility in some people

Pharmacokinetics: what the body does to piroxicam

“Pharmacokinetics” describes how the medicine is absorbed, distributed, metabolised, and eliminated.

• Absorption: Piroxicam is absorbed after oral administration. Food can affect absorption rate, but it generally doesn’t eliminate its overall effect.
• Peak levels: The time to reach peak blood concentration can vary, but piroxicam has a relatively long action.
• Distribution: Piroxicam distributes into body tissues and binds to plasma proteins.
• Metabolism: It is metabolised mainly in the liver.
• Elimination: It is cleared from the body over time, which contributes to its long-lasting effect.
• Half-life: Piroxicam is known for a relatively long half-life compared with some other NSAIDs—this is one reason why once-daily dosing is often used.

Important: Because of its long duration, missing doses can sometimes be less obvious—but taking too much or combining medicines that increase NSAID exposure can increase side effects.

Typical uses of Feldene

Feldene is used for conditions where pain and inflammation are important features. Common indications include:

• Rheumatoid arthritis
• Osteoarthritis
• Ankylosing spondylitis
• Other painful inflammatory musculoskeletal conditions as determined by your clinician

Some people take an NSAID like Feldene during flare-ups, while others use it more regularly depending on symptom control and overall health.

When to take Feldene (timing and duration)

Follow the exact dosing schedule given for you. In many regimens, Feldene is taken once daily. Because piroxicam can remain active for a long time, changing the dosing frequency without medical advice can increase risk.

General timing tips

• Take at the same time each day to help maintain steady symptom control.
• Start with the lowest effective dose (as directed) to reduce side effects.
• Use for the shortest duration needed to control symptoms, where possible.

How long it takes to help

• Many people notice pain and stiffness improvement within several days.
• Full benefit for chronic conditions may take several weeks, depending on the diagnosis and severity.

How to take Feldene with food

NSAIDs can irritate the stomach and increase the risk of ulcers or bleeding. Food may reduce stomach discomfort for some people.

• Take with food or after a meal if you experience stomach upset.
• Avoid taking it on an empty stomach if you’re prone to heartburn, gastritis, or reflux.
• If you get nausea, dizziness, or stomach pain, discuss options with your healthcare professional.

Do not exceed the recommended dose. If symptoms worsen or you develop side effects, get medical advice promptly.

Alcohol interactions and guidance

Combining NSAIDs with alcohol can increase the risk of stomach irritation, gastritis, and gastrointestinal bleeding. Alcohol may also worsen dizziness, drowsiness, or general side effects.

• Avoid or limit alcohol
• If you drink alcohol, consider asking your pharmacist or doctor what amount is safest for you.

Medicine interactions: important combinations to know

Feldene can interact with other medicines. Some interactions relate to increased bleeding risk; others affect kidney function, blood pressure, or the level/effect of medicines in the body.

Common medicines that may interact with piroxicam

• Other NSAIDs (e.g., ibuprofen, naproxen, diclofenac, aspirin used for pain): increases bleeding and stomach ulcer risk.
• Anticoagulants (e.g., warfarin, apixaban, rivaroxaban): higher bleeding risk.
• Antiplatelet medicines (e.g., clopidogrel): higher bleeding risk.
• Selective serotonin reuptake inhibitors (SSRIs) (e.g., sertraline, fluoxetine) and serotonin-norepinephrine reuptake inhibitors: can raise GI bleeding risk.
• Corticosteroids (e.g., prednisone): increased risk of stomach ulcer/bleeding.
• Diuretics and medicines affecting kidney function (ACE inhibitors/ARBs): NSAIDs can reduce kidney function and reduce some blood pressure/heart effects.
• Lithium: NSAIDs may increase lithium levels in the body.
• Methotrexate: may increase toxicity depending on dose and frequency.
• Some diabetes medicines: monitor for changes in blood glucose control in some cases.
• Other medicines metabolised in the liver: may affect piroxicam levels, depending on the combination.

What to do

• Tell your pharmacist or clinician about all medicines you take, including over-the-counter products, vitamins, and herbal supplements.
• Before starting any new pain reliever, check it doesn’t contain another NSAID.
• If you’re on blood thinners, dual antiplatelets, or long-term steroids, ask specifically about NSAID suitability.

In Australia: many non-prescription products are available. It’s still essential to avoid accidental double-dosing with NSAIDs.

Dosing: typical regimens and how to choose the right amount

Dosing depends on the condition being treated, your risk factors, and how you respond. Always follow the dose on the packaging and/or the plan provided by your healthcare professional.

General dosing principles

• Use the lowest effective dose for symptom control.
• Do not increase the dose without medical advice.
• Review the need for ongoing NSAID use regularly, particularly for long-term conditions.

Typical adult dosing (general information)

Many NSAIDs are taken once daily due to their long duration. For piroxicam, common regimens often involve once-daily dosing within the standard adult range for the condition.

• Rheumatoid arthritis / ankylosing spondylitis / osteoarthritis: often once daily in a standard range, titrated to response and tolerability.
• Acute flare-ups: dosing may remain once daily, but the duration should be the shortest needed.

Because product strengths and patient factors differ, always confirm the exact milligram (mg) dose that applies to you.

Missed dose

• If you miss a dose, take it when you remember unless it’s close to the next dose.
• Do not take a double dose to make up for the missed tablet.

Overdose and urgent symptoms

Seek urgent medical help if you suspect an overdose or if you develop severe symptoms such as persistent vomiting, black/tarry stools, severe abdominal pain, fainting, difficulty breathing, or swelling of the face/lips.

Safety profile: who should be cautious

Like all NSAIDs, Feldene can cause side effects. Some can be serious, particularly with higher doses, longer duration, older age, and people with certain medical histories.

Common side effects

• Indigestion, heartburn, nausea
• Stomach discomfort or abdominal pain
• Headache
• Dizziness
• Fluid retention (may cause swelling)

Serious side effects (seek prompt medical attention)

• Gastrointestinal bleeding: black/tarry stools, vomiting blood or material like “coffee grounds”, severe stomach pain
• Severe allergic reactions: swelling of face/lips, wheezing, trouble breathing, hives
• Kidney problems: reduced urination, unusual swelling, persistent fatigue
• Cardiovascular problems: chest pain, sudden shortness of breath, weakness on one side
• Severe skin reactions: blistering, peeling, or widespread rash
• Unexplained bruising or bleeding

People at higher risk

You may need extra caution (or an alternative medicine) if you:

• Have a history of stomach ulcers or GI bleeding
• Have kidney disease or dehydration
• Have heart disease, stroke history, uncontrolled high blood pressure, or significant cardiovascular risk
• Have asthma that worsens with NSAIDs or aspirin
• Are older (risk increases with age)
• Take medicines that increase bleeding risk (anticoagulants, antiplatelets, steroids, certain antidepressants)

Practical use tips for better tolerance

• Take with food if you experience stomach symptoms.
• Stay hydrated, particularly if you’re unwell or at risk of dehydration (e.g., vomiting/diarrhoea).
• Avoid combining NSAIDs (don’t take ibuprofen/naproxen/diclofenac at the same time unless specifically advised).
• Check “multi-symptom” products for hidden NSAIDs or interacting ingredients.
• If you’re using Feldene long-term, ask about periodic review of stomach and kidney risk.
• Report new symptoms early—especially any stomach pain, black stools, or unexpected bruising.

Pregnancy and breastfeeding: NSAIDs can be harmful in certain stages of pregnancy. If you are pregnant, trying to conceive, or breastfeeding, talk to a healthcare professional before using Feldene.

Alternative options

Depending on your diagnosis and health history, alternatives may include:

Other NSAIDs

• Ibuprofen, naproxen, diclofenac, celecoxib, and others

Non-NSAID pain options

• Paracetamol (acetaminophen) for pain relief (it does not provide the same anti-inflammatory effect)
• Topical pain relief options (e.g., gels/patches for certain joint and muscle pains)

Condition-specific treatments

• For inflammatory arthritis, disease-modifying therapies may be appropriate (depending on diagnosis)
• Physiotherapy, exercise programs, weight management, and joint protection strategies can improve long-term outcomes

Your clinician can help choose the best option considering your risk factors and symptom pattern.

Market and legal context in Australia (overview)

In Australia, medicines are regulated under the TGA (Therapeutic Goods Administration) and distributed through approved channels. Availability and supply depend on product listing, strength, and scheduling (e.g., prescription-only or pharmacist-only status as applicable).

For Feldene (piroxicam), the classification and supply arrangements are determined by regulatory requirements and local prescribing/supply rules. Online pharmacy supply also follows state/territory and national requirements.

Important: If you are ordering online, provide accurate details about your medications and conditions, because interaction checks are essential for safety.

Recent guidance and evolving safety messaging (general)

Across many countries, including Australia, regulators and professional groups have continued to emphasise NSAID safety, especially regarding:

• Gastrointestinal risk (ulcers and bleeding)
• Cardiovascular risk in susceptible individuals
• Kidney effects, particularly in older adults and those with dehydration or kidney disease
• Using the lowest effective dose and shortest duration appropriate

Because guidance can be updated, it’s a good idea to check with your healthcare professional or pharmacist if you have ongoing symptoms, new health conditions, or you are taking multiple medicines.

Delivery and availability (Australia)

Availability of Feldene may vary by manufacturer supply and pharmacy stock. When ordering online:

• Some deliveries may be dispatched quickly if the item is in stock.
• If an item is temporarily unavailable, the pharmacy may provide an estimated delivery time or suggest an alternative.
• Products are typically supplied in original packaging with clear directions and safety information.

Delivery note: Always store NSAIDs as directed on the label (commonly at room temperature, away from moisture and heat). Keep out of reach of children.

FAQ: Frequently asked questions

Is Feldene the same as ibuprofen or naproxen?

No. Feldene contains piroxicam. Ibuprofen, naproxen, and others are different NSAIDs. They can share similar risks and side effects, and you should generally avoid taking more than one NSAID at the same time.

How soon will Feldene start working?

Some people feel improvement within a few days. For chronic inflammatory conditions, it may take several weeks to achieve maximum benefit. If you notice no improvement or symptoms worsen, discuss options promptly.

Can I take Feldene with food?

Yes—taking it with food is often a good way to reduce stomach discomfort. If your product instructions differ, follow those.

What should I do if I miss a dose?

Take it when you remember unless it’s nearly time for your next dose. Do not take a double dose.

Can I drink alcohol while taking Feldene?

It’s best to avoid or limit alcohol because it can increase the risk of stomach bleeding and irritation. If you choose to drink, ask your pharmacist what is safest for you.

What medicines should I avoid?

Avoid combining Feldene with other NSAIDs unless advised. Be cautious with medicines that raise bleeding risk (anticoagulants/antiplatelets), corticosteroids, SSRIs/SNRIs, and some kidney-affecting medicines. Always check with a pharmacist.

Does Feldene affect my kidneys?

NSAIDs can reduce blood flow to the kidneys and may worsen kidney function, especially in people with existing kidney disease, dehydration, or older age. Seek medical advice if you notice reduced urination, swelling, or unusual fatigue.

When should I seek urgent help?

Seek urgent medical attention if you develop signs of serious allergy (swelling, wheezing, trouble breathing), gastrointestinal bleeding (black/tarry stools, vomiting blood), severe skin reactions, chest pain, or sudden shortness of breath.

Can I use Feldene for long periods?

Some people use NSAIDs longer term for chronic joint conditions, but the decision should be regularly reviewed. The goal is the lowest effective dose for the shortest time needed while monitoring safety.

Are there safer alternatives for stomach protection?

In some cases, clinicians may consider stomach-protective strategies (such as adding a gastro-protective medicine) depending on your risk factors. Discuss this with your healthcare professional.

Summary

Feldene (piroxicam) is an NSAID used for pain and inflammation associated with conditions such as rheumatoid arthritis, osteoarthritis, and ankylosing spondylitis. It works by reducing prostaglandin production, offering relief from swelling and stiffness.

Because piroxicam can increase the risk of stomach bleeding, kidney problems, and certain cardiovascular events—especially in people with risk factors—take it carefully, avoid combining it with other NSAIDs, and follow dosing instructions. If you experience any warning signs such as black stools, severe abdominal pain, wheezing, swelling, or unusual bruising, seek urgent medical attention.