Iontophoretic administration of dexamethasone sodium phosphate for acute epicondylitis. A randomized, double-blinded, placebo-controlled study.

Background: A better treatment modality is needed to control the pain of medial or lateral epicondylitis (tennis elbow).

Hypothesis: Dermal iontophoretic administration of dexamethasone sodium phosphate will be significantly more effective in controlling pain than a placebo in patients with medial or lateral elbow epicondylitis.

Study Design: Randomized, double-blinded, placebo-controlled study.