First-Line Oral Analgesic Therapy for Knee Osteoarthritis

Selecting the appropriate first-line oral analgesic for knee osteoarthritis requires weighing each patient's gastrointestinal risk profile alongside the evidence base for available agents. Not all patients are managed the same way, and the choice of therapy — including whether co-therapy for gastroprotection is indicated — follows a structured, guideline-supported framework.

Clinical Scenario

First-line pharmacological management of knee osteoarthritis, with particular attention to patients who carry risk for upper gastrointestinal events. Gastrointestinal risk status is the central factor that shapes both agent selection and the decision to add protective co-therapy.

Treatment Approach

Oral analgesic therapy is the foundation of this protocol, and the presence or absence of upper gastrointestinal risk determines which agent is appropriate and whether gastroprotective co-therapy should accompany it. The complete regimen — including specific agent choice, co-therapy criteria, and the approach when the primary option is not suitable — is available in the full protocol.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1016/j.rdc.2022.03.009.

Oral NSAIDs were generally recommended for all sites of OA, but strength of recommendations (conditional/weak versus strong) varied among guidelines, primarily reflecting concerns about adverse effects.
Consider adding proton pump inhibitor or misoprostol in patients at risk for upper gastrointestinal events who require treatment with NSAIDs or COX-2 inhibitors.

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