Mechanism of action: Tolmetin balliculeVisual mnemonic: Tolmetin mascot “Tool collectin’” “The N said... NSAID” “Tol-” for toluene (tolyl group) “met-” for methyl group
What it isNon-selective NSAID; rheumatoid, osteo- and juvenile idiopathic arthritis.
Why this oneOne of the few NSAIDs approved in juvenile idiopathic arthritis.
What limits itAnaphylactoid reactions are reported more often than with other NSAIDs. It raises serum lithium; three-times-daily dosing.
BOXED WARNING NSAID class: increased risk of serious cardiovascular thrombotic events (MI, stroke, can be fatal), may occur early and rise with duration; contraindicated for CABG surgery. Serious GI bleeding, ulceration, and perforation, can be fatal, may occur without warning; elderly at greater risk.
FDA dosing
Population
Start
Target
Max
Rheumatoid arthritis / osteoarthritis
Adults
400 mg TID (1200 mg/day), incl. a dose on arising and at bedtime
600–1800 mg/day divided (generally TID)
1800 mg/day
Juvenile rheumatoid arthritis
Peds ≥2 yr
20 mg/kg/day divided TID–QID
15–30 mg/kg/day divided
30 mg/kg/day
Titration Adjust dose per response after 1–2 weeks of initial therapy
Renal Undefined
Hepatic Undefined
Instructions
Use lowest effective dose for shortest duration
For GI symptoms, may take with antacids other than sodium bicarbonate
Bioavailability affected by food or milk
Available strengths
tab 600 mg
cap 400 mg
Contraindications
Asthma, urticaria, or allergic-type reactions after aspirin or other NSAIDs — severe, rarely fatal anaphylactic-like reactions reported
Setting of coronary artery bypass graft (CABG) surgery
Cautions
Serious cardiovascular thrombotic events (MI, stroke) — risk may increase with duration of use
Serious GI bleeding, ulceration, perforation — can occur any time without warning; elderly at greater risk
NADAC is a voluntary CMS survey of what retail community pharmacies pay for the drugs they stock. Tolmetin is dispensed outside retail pharmacies, so it rarely appears on surveyed invoices.
⚠ BOXED WARNINGS
Cardiovascular thrombotic events
Gastrointestinal bleeding, ulceration and perforation