Glucosamine Sulfate Potassium Chloride is a crystalline glucosamine salt used as a prescription medical nutraceutical and a Symptomatic Slow-Acting Drug for Osteoarthritis (SYSADOA). It provides the sulfate moiety essential for proteoglycan synthesis in articular cartilage. The potassium chloride component stabilizes the glucosamine sulfate molecule, preventing degradation and ensuring consistent potency. It is indicated for the symptomatic treatment of mild to moderate osteoarthritis of the knee, with evidence suggesting potential structure-modifying effects.
Adult: 1500 mg once daily. Alternatively, 500 mg three times daily. The once-daily regimen is preferred for adherence.
Note: Take with or after meals to improve gastrointestinal tolerance. The sachet/powder should be dissolved in a glass of water (approx. 200 ml) and consumed immediately. Tablets should be swallowed whole with water.
Glucosamine is a natural aminomonosaccharide and a precursor for the biosynthesis of glycosaminoglycans (GAGs) and proteoglycans, which are essential structural components of articular cartilage. It stimulates the synthesis of proteoglycans by chondrocytes and may exert a mild anti-inflammatory effect independent of COX inhibition. The sulfate moiety is critical for cartilage matrix synthesis and is believed to be the active component.
Pregnancy: Category C: Animal reproduction studies have shown adverse effects. There are no adequate and well-controlled studies in pregnant women. Use only if potential benefit justifies potential risk to the fetus.
Driving: May cause drowsiness or dizziness in some patients. Caution advised when driving or operating machinery until response is known.
| Warfarin/Acenocoumarol | May potentiate anticoagulant effect, increasing INR and bleeding risk. Mechanism unclear. | Major |
| Diuretics (Potassium-sparing: Spironolactone, Amiloride) | Additive risk of hyperkalemia. | Major |
| ACE Inhibitors (e.g., Ramipril, Enalapril) | Additive risk of hyperkalemia. | Moderate |
| NSAIDs (e.g., Ibuprofen, Diclofenac) | Potential increased risk of GI side effects. Theoretical antagonism of glucosamine effect, but clinical relevance is uncertain. | Moderate |
| Antidiabetic Agents (Insulin, Metformin) | Early studies suggested interference with insulin sensitivity; recent meta-analyses show no significant effect. Monitor blood glucose as a precaution. | Moderate |
| Cyclosporine | Potential increased risk of nephrotoxicity. | Moderate |
| Tetracycline antibiotics | May increase absorption of tetracycline. | Minor |
Same composition (Glucosamine Sulfate Potassium Chloride (1500mg)), different brands: