Naproxen Bp Crescent Pharma (Naproxen)

Naproxen is an NSAID that acts on inflammatory and pain pathways in several common conditions.

• Mild to moderate pain: provides analgesia for headaches, dental pain, musculoskeletal discomfort, and postoperative pain.
• Osteoarthritis: reduces joint inflammation and improves mobility in chronic degenerative joint disease.
• Rheumatoid arthritis: helps control inflammatory activity and pain in autoimmune joint disease.
• Dysmenorrhea: alleviates menstrual cramps and associated pelvic pain.
• Fever: lowers elevated body temperature associated with acute infections or inflammatory states.

• Naproxen exerts its effect by non‑selectively inhibiting cyclooxygenase‑1 (COX‑1) and cyclooxygenase‑2 (COX‑2) enzymes, which blocks the conversion of arachidonic acid to prostaglandins. The reduction in prostaglandin synthesis diminishes inflammation, pain signaling, and fever generation at the site of tissue injury or systemic inflammatory response.

Adverse reactions to naproxen can vary in frequency and severity.

Common Side Effects

• Gastrointestinal upset: nausea, dyspepsia, or abdominal discomfort.
• Headache: mild to moderate intensity.
• Dizziness or vertigo.
• Mild skin rash or pruritus.
• Elevated blood pressure.

Serious or Rare Side Effects

• Gastrointestinal ulceration or bleeding.
• Cardiovascular events such as myocardial infarction or stroke.
• Acute renal failure or worsening of chronic kidney disease.
• Severe skin reactions, including Stevens‑Johnson syndrome.
• Hepatic injury or elevated liver enzymes.
• Anaphylactic or severe hypersensitivity reactions.

Before initiating naproxen therapy, consider the following safety measures.

• Assess gastrointestinal risk: evaluate history of ulcers, bleeding, or concurrent NSAID use.
• Evaluate cardiovascular risk: avoid in patients with recent myocardial infarction or uncontrolled hypertension.
• Monitor renal function: use caution in patients with impaired kidney function or dehydration.
• Use the lowest effective dose for the shortest duration needed.
• Avoid in individuals with known hypersensitivity to naproxen or other NSAIDs.
• Store at ambient temperature: keep in the original container, protect from moisture and direct sunlight.

Naproxen may interact with several drug classes, requiring careful management.

Major Interactions (Avoid)

• Anticoagulants (e.g., warfarin): increased risk of serious bleeding.
• Selective serotonin reuptake inhibitors (SSRIs): heightened gastrointestinal bleeding risk.
• ACE inhibitors or ARBs: may reduce renal perfusion and function.
• Lithium: naproxen can raise lithium serum concentrations.
• Methotrexate: reduced clearance leading to toxicity.

Moderate Interactions (Monitor Closely)

• Diuretics: potential for reduced renal function.
• Antihypertensives: possible attenuation of blood pressure control.
• Corticosteroids: additive risk of gastrointestinal ulceration.
• Other NSAIDs: increased adverse effect profile.
• Alcohol: potentiates gastrointestinal irritation and bleeding.