Felvin 20 contains piroxicam, a non-steroidal anti-inflammatory drug (NSAID) that helps relieve pain, reduce inflammation, and ease stiffness caused by a variety of musculoskeletal and inflammatory conditions. Unlike simple painkillers that primarily relieve pain, piroxicam also targets the inflammation that often contributes to discomfort.  Mechanism of Action of Felvin 20 The active ingredient, piroxicam in Felvin 20 works by blocking the body’s production of substances called prostaglandins. Prostaglandins are chemicals released in response to injury or inflammation and are responsible for causing pain, swelling, redness, and fever. Piroxicam works by inhibiting the activity of the cyclooxygenase (COX-1 and COX-2) enzymes, which are essential for the production of prostaglandins. By reducing prostaglandin levels, Felvin 20 helps to: Because piroxicam blocks both COX-1 and COX-2 enzymes, it may also reduce the protective prostaglandins that help maintain the stomach lining and support kidney function. This is why prolonged use or high doses can increase the risk of stomach ulcers, gastrointestinal bleeding, and kidney problems, particularly in older adults or people with pre-existing medical conditions. Felvin is a long-acting NSAID, meaning its effects can last for about 24 hours. This allows many patients to take it once daily or as prescribed by their healthcare provider. What Is Felvin 20 Used For? (Indications) Felvin is prescribed to relieve pain and reduce inflammation caused by a wide range of conditions affecting the joints, muscles, bones, and soft tissues. It can provide sustained pain relief for both acute injuries and chronic inflammatory conditions. Depending on your diagnosis, your healthcare provider may prescribe Felvin for any of the following conditions: Felvin 20 Dosage The recommended dosage of Felvin 20 depends on the condition being treated, your age, and your overall health. Always take this medicine exactly as prescribed by your healthcare provider. The usual recommended adult dose is: The maximum recommended daily dose is 20 mg. Do not take more than the prescribed dose, as higher doses increase the risk of serious side effects, For best results, Pharmacist Rosemary recommends taking Felvin 20 with food or milk and swallowing it with a full glass of water to help reduce stomach irritation. Avoid lying down immediately after taking the tablet. Felvin 20 Side Effects Like all medicines, Felvin 20(piroxicam) can cause side effects, although not everyone experiences them. Most side effects are mild and temporary, but some can be serious and require immediate medical attention. Common Side Effects of Felvin 20 The most commonly reported side effects include: These side effects are often mild. However, if they persist or become bothersome, speak with your healthcare provider. Serious Side Effects (Seek Medical Attention Immediately) Stop taking Felvin and seek urgent medical care if you experience any of the following: Less Common and Rare Side Effects Although these reactions are uncommon, they require prompt medical evaluation if they occur. When to Contact Your Healthcare Provider Contact your healthcare provider if your side effects do not improve, become severe, or if you notice any unusual symptoms while taking Felvin. Do not stop taking the medication without medical advice unless you are experiencing a serious reaction. Contraindications of Felvin 20 Felvin (piroxicam) should not be used in certain situations because it may increase the risk of serious or life-threatening reactions. Do not take Felvin 20 if you: If any of the above apply to you, inform your healthcare provider before taking Felvin. They may recommend a safer alternative for managing your pain or inflammation. Pregnancy and Breastfeeding Do not take Felvin 20 during pregnancy unless specifically advised by your healthcare provider. Taking piroxicam during the last 20 weeks of pregnancy may harm the unborn baby and increase the risk of pregnancy complications. Piroxicam may also temporarily delay ovulation, so it is generally not recommended for women who are trying to conceive. It is not known whether piroxicam passes into breast milk in amounts that could affect a nursing infant. If you are breastfeeding, speak with your healthcare provider before taking Felvin 20. Children Felvin 20 is not approved for use in children and adolescents younger than 18 years. Tell Your Healthcare Provider Before Taking Felvin 20 If You Have: Felvin 20 Price in Nigeria As of July 2026, the price of Felvin 20 mg tablets in Nigeria typically ranges from ₦300 to ₦500 per pack. However, the exact price may vary depending on the brand, pack size, pharmacy, and your location. To ensure you receive a genuine product at a competitive price, purchase Felvin from a licensed pharmacy. Save More with Me & You Pharma: Through Me & You Pharma, you can access discounted prices on Felvin from our network of partner pharmacies. Join our community to enjoy savings while purchasing from trusted, licensed pharmacies. Frequently Asked Questions (FAQs) Still have questions about Felvin (piroxicam)? Below are answers to some of the most frequently asked questions, including its uses, safety, interactions, and what to expect while taking the medication. Can Felvin 20 be used for menstrual cramps? Yes. Felvin 20 can be used to relieve menstrual cramps (primary dysmenorrhoea) in adults. For the best results, Felvin is usually better started at the onset of menstrual pain or bleeding and taken exactly as prescribed by a healthcare provider.  Can Felvin 20 cause infertility? There is no evidence that Felvin 20 causes permanent infertility in either men or women. However, like other non-steroidal anti-inflammatory drugs (NSAIDs), Felvin may temporarily reduce fertility in women by delaying or preventing ovulation.  I’m on antibiotics, can I still take Felvin 20? Yes, Felvin 20 can be taken with certain antibiotics. However, some antibiotics may interact with piroxicam and increase the risk of side effects. To avoid potentially serious drug interactions, always inform your healthcare provider or pharmacist about any medications you are taking before starting piroxicam.