Olfen Forte (Diclofenac Diethylamine)

Olfen Forte contains diclofenac, an NSAID that reduces inflammation through cyclo‑oxygenase inhibition in the musculoskeletal system.

• Osteoarthritis: helps reduce joint pain and improve mobility.
• Rheumatoid arthritis: alleviates inflammatory joint pain and swelling.
• Acute musculoskeletal sprain or strain: provides localized pain relief and reduces swelling.
• Post‑operative pain (minor superficial procedures): assists in managing localized postoperative discomfort.

• Diclofenac Diethylamine inhibits cyclo‑oxygenase‑1 and cyclo‑o‑oxygenase‑2 enzymes, decreasing the synthesis of prostaglandins that mediate inflammation, pain and fever. By limiting prostaglandin production at the site of application, it reduces local vascular permeability and nociceptor activation, providing anti‑inflammatory and analgesic effects.

Adverse reactions to topical diclofenac are generally mild and confined to the application site.

Common Side Effects

• Skin irritation: redness, itching or burning at the site of application.
• Dryness: localized skin dryness or flaking.
• Pruritus: mild itching without rash.
• Erythema: mild redness of the skin.

Serious or Rare Side Effects

• Contact dermatitis: severe allergic skin reaction with swelling and blistering.
• Systemic NSAID effects: gastrointestinal bleeding, ulceration or renal impairment when absorbed in larger amounts.
• Photosensitivity: heightened skin sensitivity to sunlight leading to rash.
• Anaphylaxis: rare, potentially life‑threatening allergic reaction requiring immediate medical attention.

When using Olfen Forte, consider the following safety measures:

• Contraindications: avoid use in patients with known hypersensitivity to diclofenac or other NSAIDs.
• Pregnancy: do not use during the third trimester; consult a healthcare professional for earlier trimesters.
• Breastfeeding: discontinue use if the infant shows signs of irritation.
• Skin integrity: apply only to intact, non‑broken skin; avoid mucous membranes.
• Drug interactions: review concomitant NSAID or anticoagulant therapy with a clinician.
• Store at ambient temperature: keep below 25°C in the original packaging, protected from moisture and direct sunlight.

Diclofenac may interact with several systemic medications; topical use generally results in lower systemic exposure but caution is still advised.

Major Interactions (Avoid)

• Anticoagulants (e.g., warfarin): increased risk of bleeding.
• Other NSAIDs or COX‑2 inhibitors: additive gastrointestinal toxicity.
• Lithium: diclofenac can raise serum lithium levels, risking toxicity.

Moderate Interactions (Monitor Closely)

• ACE inhibitors or ARBs: may reduce renal function when combined.
• Diuretics (e.g., furosemide): potential for reduced kidney perfusion.
• Corticosteroids: heightened risk of ulceration and gastrointestinal bleeding.