Pain Management with Diclofenaco

Introduction to Diclofenaco

The general guideline for diclofenaco is to use the effective lowest dose for the shortest duration possible to minimize potential adverse effects, especially gastrointestinal and renal ones, as recommended by guideline societies 1

The recommended dose for acute pain/dysmenorrhea is 50 mg three times a day (150 mg/day), and for osteoarthritis, it is 100-150 mg/day divided into 2-3 doses (50 mg two or three times a day), while for rheumatoid arthritis, it is 150-200 mg/day divided into 3-4 doses (50 mg three or four times a day) 1
Guideline societies recommend using the lowest effective dose for the shortest duration possible, and to avoid use in patients with hypersensitivity to NSAIDs, active gastrointestinal bleeding, severe renal insufficiency, or concomitant use with other NSAIDs 1

No explicit formulation recommendations are provided in the article, however, guideline societies may recommend using the formulation with the fastest absorption rate for acute pain, and any formulation is appropriate for chronic conditions 1

Monitoring for gastrointestinal symptoms and considering gastric protection in prolonged treatments is recommended, with patients to be monitored closely for adverse effects 1
The European Society of Gastrointestinal Endoscopy (ESGE) and European Association for the Study of the Liver (EASL) strongly recommend 100 mg of diclofenac administered rectally immediately before or after ERCP to prevent post-ERCP pancreatitis, based on high-quality evidence and carrying a strong recommendation grade 2
The British Society of Gastroenterology (BSG) guidelines also recommend 100 mg of diclofenac administered rectally at the time of ERCP, particularly important in high-risk patients (female sex, previous pancreatitis, difficult cannulation) 3, 2
Rectal diclofenac (100 mg) has been shown to reduce postoperative pruritus and postoperative pain when given after induction for abdominal surgery 4, 5
Rectal diclofenac should be avoided in patients with hypersensitivity to NSAIDs, active gastrointestinal bleeding, severe renal impairment, or concurrent use with other NSAIDs, with the strongest guideline recommendations consistently supporting the 100 mg dose 2, 3, 6
Topical application or patch formulations of diclofenac (180 mg daily or twice daily) are available but are not equivalent to rectal administration and should not be confused with the rectal dosing recommendations 7