1. Clinical Overview
A fixed-dose combination of four essential trace minerals (Chromium, Copper, Manganese, Selenium) formulated as a nutritional supplement. It is primarily indicated for the prevention and correction of deficiencies of these micronutrients, which are crucial cofactors for numerous enzymatic and metabolic processes. In the Indian context, it is widely used as an adjunct in the management of diabetes, metabolic syndrome, oxidative stress, and to support immune function, bone health, and thyroid metabolism.
| Onset | Duration | Bioavailability |
|---|---|---|
| Variable; systemic effects on enzyme function and metabolic parameters may be observed within 4-8 weeks of consistent supplementation. | Not applicable in a conventional pharmacokinetic sense. Effects are dependent on maintaining adequate tissue and plasma levels through regular intake. | Varies by mineral and salt form. Typically: Chromium Picolinate (~2-3%), Copper Gluconate (~30-40%), Manganese Gluconate (~3-5%), Selenium (as Selenomethionine ~90%, as Sodium Selenite ~50-60%). |
2. Mechanism of Action
The combination acts by replenishing essential trace minerals that serve as critical cofactors for hundreds of enzymes. Chromium potentiates the action of insulin by facilitating insulin receptor signaling. Copper is a cofactor for cytochrome c oxidase (energy production), superoxide dismutase (antioxidant), and lysyl oxidase (collagen cross-linking). Manganese is a cofactor for superoxide dismutase (MnSOD), pyruvate carboxylase (gluconeogenesis), and glycosyltransferases (bone matrix formation). Selenium is an integral component of the active site of glutathione peroxidases and thioredoxin reductases, key antioxidant enzymes, and is essential for the conversion of thyroxine (T4) to triiodothyronine (T3).
3. Indications & Uses
- Prevention and treatment of documented or suspected deficiency of Chromium, Copper, Manganese, and Selenium.
- Nutritional adjunct in the management of Type 2 Diabetes Mellitus and impaired glucose tolerance (primarily for Chromium).
- Supportive therapy in conditions with increased oxidative stress.
4. Dosage & Administration
Adult Dosage: One tablet/capsule once daily, or as directed by the physician. Usually taken with a meal to improve tolerance and absorption.
Administration: Oral administration. Swallow whole with a full glass of water. Take with food to minimize potential gastrointestinal upset and to enhance absorption of fat-soluble components. Do not crush or chew unless specified. Maintain at least 2 hours gap with tetracycline/quinolone antibiotics, antacids, zinc, or iron supplements to avoid absorption interference.
5. Side Effects
Common side effects may include:
- Nausea
- Epigastric discomfort
- Altered taste (metallic taste)
- Headache (rare at these doses)
6. Drug Interactions
| Drug | Effect | Severity |
|---|---|---|
| Levothyroxine | Selenium may enhance conversion of T4 to T3, potentially altering thyroid hormone levels. Monitor TSH. | Moderate |
| Antacids (Aluminum, Magnesium, Calcium containing) | Reduce absorption of all trace minerals. Administer at least 2-3 hours apart. | Moderate |
| Tetracycline & Quinolone antibiotics | Chelation by minerals reduces antibiotic absorption. Separate administration by 2-3 hours. | Major |
| Penicillamine | Chelates copper, reducing its efficacy for Wilson's disease. Contraindicated. | Major |
| Zinc supplements (high dose) | Competes with copper for absorption, can induce copper deficiency. Monitor if used concurrently. | Moderate |
| Iron supplements | May compete with manganese and chromium for absorption. Separate doses. | Moderate |
| Vitamin C (high dose >1g) | May reduce the absorption of copper. Moderate doses are acceptable. | Minor |
7. Patient Counselling
- DO take exactly as directed, usually once daily with a meal.
- DO inform your doctor about all other medicines and supplements you are taking.
- DO store in a cool, dry place away from sunlight and moisture.
- DON'T crush or chew the tablet/capsule unless instructed.
- DON'T take a double dose to make up for a missed one.
- DON'T take with antacids, milk, or high-fiber meals; separate by 2-3 hours.
- DON'T use if the seal is broken or the product appears discolored.
8. Toxicology & Storage
Overdose: Acute overdose is rare. Chronic excessive intake can lead to: Chromium: Renal failure, hepatic dysfunction. Copper: Nausea, vomiting, abdominal pain, hemolytic anemia, jaundice, renal failure (Wilson's disease-like). Manganese: Neurotoxicity (manganism): Parkinsonism, cognitive deficits, psychiatric symptoms. Selenium: Selenosis: Hair loss, nail dystrophy, garlic breath, GI upset, neurological issues.
Storage: Store below 30°C, in a cool, dry place. Protect from light and moisture. Keep the container tightly closed. Keep out of reach of children. Do not use after the expiry date printed on the pack.