PiroxicamThird Party Manufacturing in India

Piroxicam is a non-steroidal anti-inflammatory drug belonging to the oxicam class that exerts its therapeutic effects through potent and reversible inhibition of cyclooxygenase enzymes, primarily cyclooxygenase-1 and cyclooxygenase-2. By binding to the catalytic domain of these enzymes, piroxicam prevents the conversion of arachidonic acid released from membrane phospholipids into prostaglandin H₂, the common precursor of all prostaglandins, prostacyclin, and thromboxane A₂. This inhibition reduces the synthesis of prostaglandin E₂ and prostacyclin at sites of inflammation, which are key mediators of vasodilation, increased vascular permeability, and sensitization of nociceptive nerve endings to pain stimuli. Piroxicam demonstrates a unique pharmacokinetic profile among NSAIDs due to its exceptionally long elimination half-life of approximately 50 hours, which allows once-daily dosing and maintains sustained anti-inflammatory concentrations in synovial fluid. The drug also exhibits concentration-dependent inhibition of neutrophil activation, reduced production of reactive oxygen species by polymorphonuclear leukocytes, and decreased expression of adhesion molecules on endothelial cells, contributing additional anti-inflammatory effects beyond cyclooxygenase inhibition. Unlike many short-acting NSAIDs, piroxicam achieves steady-state concentrations gradually over seven to twelve days, requiring a loading dose regimen for rapid therapeutic onset in acute inflammatory conditions.

Therapeutic Uses

Piroxicam is prescribed for the management of inflammatory and painful musculoskeletal conditions:

• Rheumatoid Arthritis: Provides effective relief of joint pain, morning stiffness, and swelling in active rheumatoid arthritis, improving functional capacity and quality of life.
• Osteoarthritis: Used for symptomatic management of pain and stiffness in weight-bearing joints including knees and hips, with sustained benefit from once-daily dosing.
• Ankylosing Spondylitis: Reduces axial inflammation, spinal pain, and morning stiffness in patients with active ankylosing spondylitis.
• Acute Musculoskeletal Disorders: Effective for acute flare-ups of gout, acute low back pain, bursitis, tendinitis, and soft tissue injuries.
• Dysmenorrhea: Provides relief from primary dysmenorrhea by reducing uterine prostaglandin production.

Why Manufacturers Choose Piroxicam

Piroxicam is a widely prescribed NSAID with consistent demand across rheumatology, orthopedics, and general medicine. Its once-daily dosing due to the long half-life provides a distinct compliance advantage over shorter-acting NSAIDs that require multiple daily doses. The molecule is available in multiple formulations including tablets, capsules, dispersible tablets, and topical gels, allowing manufacturers to offer a comprehensive product range. Piroxicam has well-established API supply chains with multiple DMF filings from both domestic Indian and international sources, ensuring raw material security and competitive pricing. The Indian pharmaceutical market maintains steady demand for piroxicam through PCD franchise networks, hospital supplies, and institutional tenders. The 20mg strength is the most commonly prescribed dose, making it an efficient single-strength manufacturing operation.