Management of Foot Pain in Elderly Patients

Introduction to Foot Pain Management

• The American Geriatrics Society recommends that NSAIDs, including mefenamic acid, should be used rarely and with extreme caution in elderly patients, due to high risks of gastrointestinal bleeding, renal toxicity, and cardiovascular complications 1

Non-Pharmacologic Approaches

• Initiate treatment with footwear modifications, foot orthoses, and routine foot care, which are effective at reducing foot pain in older people, as recommended by the BMJ 2
• Consider assistive devices such as walking sticks for those with specific problems in activities of daily living, as suggested by the BMJ 2
• Implement local heat or cold applications, as recommended by the BMJ 2

Pharmacologic Approaches

• Prescribe acetaminophen up to 1,000 mg every 6 hours (maximum 4 grams/24 hours) as scheduled dosing for mild to moderate pain, as recommended by the Journal of the American Geriatrics Society (JAGS) 3, 4, 5
• Acetaminophen provides pain relief comparable to NSAIDs without gastrointestinal, renal, or cardiovascular risks, as noted by the Journal of the American Geriatrics Society (JAGS) and the American College of Clinical Pharmacology 3, 5
• If acetaminophen provides insufficient relief, add topical NSAIDs (such as diclofenac gel) rather than systemic NSAIDs, as recommended by the MMWR Recommendations and Reports 6, 7, 5

Critical Monitoring Requirements

• Document absence of active peptic ulcer disease, gastrointestinal bleeding history, heart failure, and renal impairment before initiating any NSAID, as recommended by the American College of Clinical Pharmacology 1
• Obtain baseline blood pressure, BUN, creatinine, liver function tests, complete blood count, and stool occult blood test, as recommended by the Praxis Medical Insights 9
• Review all concurrent medications for dangerous interactions with ACE inhibitors, diuretics, and antiplatelets, as recommended by the American College of Clinical Pharmacology 1, 9

Ongoing Surveillance

• Repeat renal function (BUN, creatinine), blood pressure, liver function tests, complete blood count, and stool occult blood test every 3 months, as recommended by the Praxis Medical Insights 5, 9
• Assess for gastrointestinal toxicity, renal function deterioration, blood pressure elevation, heart failure exacerbation, and drug-drug interactions, as recommended by the American College of Clinical Pharmacology 1

Common Pitfalls

• Take detailed medication histories including all OTC medications before prescribing any additional NSAIDs, as recommended by the Journal of the American Geriatrics Society (JAGS) 3
• The American Geriatrics Society recommends that naproxen (a similar NSAID to mefenamic acid) should be used rarely and with extreme caution, reserved only for highly selected individuals after safer therapies have failed, as noted by the Praxis Medical Insights 1
• All elderly patients taking any oral NSAID must receive concurrent proton pump inhibitor or misoprostol for gastrointestinal protection, as recommended by the American College of Clinical Pharmacology 1