Monograph Details

Musculoskeletal Disorders > Gout
Probenecid + Colchicine
Manufacturer
Various generic manufacturers
Legal Classification
Rx
Pharmacological Class
Uricosuric + antiinflammatory.
Generic Name
Probenecid 500mg, colchicine 0.5mg; scored tabs.
Indications
Chronic gouty arthritis.
Children
Not recommended.
Adults
1 tab daily for 1 week, then 1 tab twice daily thereafter. Renal impairment, dose adjustments: see literature.
Contraindications
Acute gouty attack. Blood dyscrasias. Uric acid kidney stones. Children <2 yrs of age. Pregnancy. Concomitant salicylates (antagonizes uricosuric effect).
Precautions
History of peptic ulcer. Spastic colon. GI, renal, hepatic, or hematological disorders. G6PD deficiency. Monitor blood counts in long-term therapy. Maintain adequate hydration. Alkalization of urine may be required. Debilitated. Elderly. Nursing mothers.
Interactions
Affects renal clearance of many drugs (esp. penicillins). Potentiates methotrexate (monitor and reduce methotrexate dose). May potentiate thiopental, ketamine, NSAIDs, oral sulfonylureas, acetaminophen, lorazepam, rifampin, other sulfonamides. Pyrazinamide antagonizes uricosuric effect. May cause falsely high readings of theophylline levels, or false (+) RBC or hemoglobin in urine.
Adverse Reactions
Headache, dizziness, GI upset, diarrhea, urinary frequency, sore gums, uric acid kidney stones, dermatitis, hematuria, renal colic, fever, peripheral neuritis, myopathy, anemia, blood dyscrasias, hemolytic anemia, purpura, bone marrow depression; rare: severe allergic reactions, anaphylaxis.
How Supplied
Contact supplier.