Nalgesin Akut (Naproxen Sodium)

Nalgesin Akut, a nonsteroidal anti‑inflammatory drug, is used across several painful and inflammatory conditions.

• Mild to moderate pain: provides analgesic relief for acute or chronic pain conditions.
• Osteoarthritis: reduces joint inflammation and improves mobility.
• Rheumatoid arthritis: helps control inflammatory activity and pain.
• Musculoskeletal pain: eases strain‑related discomfort and stiffness.
• Dysmenorrhea: alleviates menstrual cramps and associated pain.
• Fever: lowers elevated body temperature in febrile states.

• Naproxen sodium 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 resulting decrease in prostaglandin synthesis diminishes inflammation, pain signaling, and fever generation at the site of tissue injury.

Adverse reactions may vary in frequency and severity.

Common Side Effects

• Gastrointestinal upset: dyspepsia, heartburn, or abdominal discomfort.
• Nausea or vomiting.
• Headache.
• Dizziness.
• Mild skin rash.
• Elevated blood pressure.

Serious or Rare Side Effects

• Gastrointestinal bleeding or ulcer perforation.
• Severe renal impairment or acute kidney injury.
• Cardiovascular events such as myocardial infarction or stroke.
• Anaphylactic or severe hypersensitivity reactions.
• Hepatic injury with jaundice.
• Stevens‑Johnson syndrome or toxic epidermal necrolysis.

Before initiating therapy, consider the following safety measures.

• Assess gastrointestinal risk: avoid in patients with active ulcers or a history of GI bleeding.
• Evaluate renal function: monitor creatinine in those with pre‑existing kidney disease.
• Monitor cardiovascular status: use cautiously in patients with heart disease or hypertension.
• Use the lowest effective dose for the shortest duration needed.
• Avoid in individuals with known hypersensitivity to naproxen or other NSAIDs.
• Store at room temperature: keep in the original packaging, protect from moisture and direct sunlight.

Naproxen sodium can affect the activity of several concomitant medicines.

Major Interactions (Avoid)

• Anticoagulants (e.g., warfarin): increased risk of serious bleeding.
• Other NSAIDs or aspirin: additive gastrointestinal toxicity.
• Selective serotonin reuptake inhibitors (SSRIs): heightened bleeding tendency.
• ACE inhibitors or ARBs: may reduce renal perfusion and function.
• Lithium: naproxen can raise serum lithium levels, risking toxicity.

Moderate Interactions (Monitor Closely)

• Diuretics: possible reduction in antihypertensive effect.
• Methotrexate: decreased clearance leading to toxicity.
• Corticosteroids: synergistic risk of ulceration.
• Beta‑blockers: may blunt antihypertensive response.
• Antihypertensive agents: monitor blood pressure for additive effects.