Usual Adult Dose for Osteoarthritis:
Diclofenac free acid capsules: 35 mg orally 3 times a day
Diclofenac potassium immediate-release tablets: 50 mg orally 2 or 3 times a day
Diclofenac sodium enteric-coated tablets: 50 mg orally 2 or 3 times a day or 75 mg orally 2 times a day
Maximum dose: 150 mg daily
Diclofenac sodium extended-release tablets: 100 mg orally once a day
Use: For the relief of signs and symptoms of osteoarthritis.
Usual Adult Dose for Ankylosing Spondylitis:
Diclofenac sodium enteric-coated and delayed-release tablets: 25 mg orally 4 times a day. An additional 25 mg dose may be administered at bedtime, if necessary
Maximum dose: 125 mg per day
Use: For acute or long-term use in the relief of signs and symptoms of ankylosing spondylitis.
Usual Adult Dose for Dysmenorrhea:
Diclofenac potassium immediate-release tablets: 50 mg orally 3 times a day
Comments: An initial dose of 100 mg orally followed by 50 mg oral doses may provide better relief for some patients; initiate treatment upon appearance of the first symptoms and continue for a few days.
Use: For the relief of signs and symptoms of primary dysmenorrhea.
Usual Adult Dose for Rheumatoid Arthritis:
Diclofenac potassium immediate-release tablets: 50 mg orally 3 or 4 times a day
Diclofenac sodium enteric-coated and delayed-release tablets: 50 mg orally 3 to 4 times a day or 75 mg orally twice a day
Maximum dose: 225 mg daily
Diclofenac sodium extended-release tablets: 100 mg orally once a day
Maximum dose: 100 mg orally 2 times a day; this would be for the rare patient in whom the benefits outweigh the clinical risks.
For the relief of signs and symptoms of rheumatoid arthritis
Usual Adult Dose for Migraine:
Diclofenac potassium for oral solution packets: 50 mg (1 packet) orally once
Comments: This drug is not indicated for the prophylactic therapy of migraine or for use in cluster headaches; the safety and efficacy of a second dose has not been established.
Use: For acute treatment of migraine with or without aura.
Usual Adult Dose for Pain:
Oral:
Diclofenac potassium liquid-filled capsules: 25 mg orally 4 times a day
Diclofenac free acid capsules: 18 mg or 35 mg orally 3 times a day
Diclofenac potassium immediate-release tablets: 50 mg orally 3 times a day; an initial dose of 100 mg orally followed by 50 mg oral doses may provide better relief in some patients.
Parenteral:
37.5 mg IV bolus over 15 seconds every 6 hours as needed for pain
Maximum Dose: 150 mg per day
Comment: Patients should be well hydrated prior to IV administration of this drug in order to reduce the risk of adverse renal reactions.
Uses: For the management of mild to moderate acute pain (oral, IV) and moderate to severe pain alone or in combination with opioid analgesics (IV).
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
 Detailed Diclofenac dosage information
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
