Voltaren

What is Voltaren used for?

Voltaren's active ingredient is diclofenac, a non-steroidal anti-inflammatory drug (NSAID) that reduces pain, inflammation and fever by inhibiting cyclooxygenase (COX) enzymes and thereby lowering production of prostaglandins, the substances that cause pain and inflammation. Oral forms are used for arthritis, musculoskeletal pain and menstrual pain, while the topical gel is used for localised muscle and joint pain and swelling.

How to take Voltaren and adjust the dose

Oral enteric-coated tablets: adults typically take 75-150mg daily in divided doses; up to 200mg/day may be used for period pain. SR (sustained-release) tablets: usual dose is 100mg once daily. Take with or after food to reduce gastrointestinal irritation. Topical gel: apply to the affected area 2-4 times daily, avoiding eyes and open wounds. Because diclofenac carries cardiovascular and GI risks, use the lowest effective dose for the shortest duration needed. (This is a general reference range, not verbatim HK labeling — follow your doctor's prescription or the package insert.)

Voltaren side effects

• Common: stomach pain, indigestion, nausea, headache, dizziness; topical use may cause local skin reactions (redness, itching)
• Serious (rare but important): GI bleeding/ulceration/perforation, increased risk of heart attack or stroke, liver/kidney impairment, severe allergic reactions

Who should not take Voltaren?

• Contraindicated in those allergic to diclofenac or other NSAIDs (e.g. aspirin), or with history of asthma/urticaria after NSAID use
• Contraindicated with active peptic ulcer or history of GI bleeding
• Contraindicated/used with caution in severe heart failure, ischaemic heart disease, cerebrovascular or peripheral arterial disease
• Contraindicated in severe hepatic or renal impairment
• Contraindicated in late pregnancy (especially third trimester); consult a doctor in early pregnancy and breastfeeding
• Contraindicated in the setting of recent coronary artery bypass graft (CABG) surgery