Motusol (Diclofenac Diethylamine)

Motusol contains diclofenac diethylamine, an NSAID that acts on inflammatory pathways in the musculoskeletal system.

• Musculoskeletal pain: provides localized pain relief and reduces inflammation.
• Sprains and strains: helps decrease swelling and discomfort in injured soft tissues.
• Minor sports injuries: supports faster recovery by limiting inflammatory response.
• Osteoarthritis: alleviates joint pain and stiffness in affected areas.

• Diclofenac diethylamine inhibits cyclooxygenase (COX‑1 and COX‑2) enzymes in peripheral tissues, leading to reduced synthesis of prostaglandins that mediate inflammation, pain and fever. By limiting prostaglandin production at the site of application, the topical formulation delivers localized anti‑inflammatory and analgesic effects with minimal systemic exposure.

Adverse reactions may occur with topical diclofenac use. Most are mild and reversible.

Common Side Effects

• Skin irritation at the application site.
• Redness or erythema.
• Itching or pruritus.
• Dryness or peeling of the skin.
• Burning sensation.
• Localized swelling.

Serious or Rare Side Effects

• Allergic dermatitis or severe rash.
• Contact urticaria.
• Bullous pemphigoid‑like reactions.
• Systemic NSAID effects such as gastrointestinal ulceration (rare with topical use).
• Liver enzyme elevation.
• Renal function impairment in susceptible individuals.

When using Motusol, consider the following safety measures.

• Contraindications: Do not apply to patients with known hypersensitivity to diclofenac or other NSAIDs.
• Application area: Limit use to intact skin; avoid mucous membranes and open wounds.
• Duration: Do not exceed the recommended treatment period without medical advice.
• Systemic absorption: Caution in patients with hepatic, renal or cardiovascular disease; monitor as appropriate.
• Pregnancy and lactation: Use only if clearly indicated and after risk‑benefit assessment by a healthcare professional.
• Store at ambient temperature: Keep below 25 °C, in the original container, protected from moisture and direct sunlight.

Topical diclofenac can interact with other medicines, especially those affecting coagulation or renal function.

Major Interactions (Avoid)

• Systemic anticoagulants (e.g., warfarin): increased bleeding risk.
• Other NSAIDs or COX‑2 inhibitors: additive gastrointestinal or renal toxicity.
• Lithium: potential increase in lithium levels.

Moderate Interactions (Monitor Closely)

• ACE inhibitors or ARBs: may reduce renal perfusion.
• Diuretics: possible impact on renal function.
• Methotrexate: enhanced toxicity risk.
• Corticosteroids: increased risk of skin thinning and ulceration.