JOINT 360 PLATINUM PLUS CAPLETS (Each caplet contains GLUCOSAMINE SULPHATE/ CHONDROITIN SULPHATE/ METHYLSULFONYL METHANE/ VITAMIN C/ VIATMIN D3/ VITAMIN B12 500mg/400mg/100mg/30mg/500IU/250mcg)

Mechanism of action

Cyanocobalamin serves as a cofactor for methionine synthase and L-methylmalonyl-CoA mutase enzymes. Methionine synthase is essential for the synthesis of purines and pyrimidines that form DNA. L-methylmalonyl-CoA mutase is involved in the degradation of propionate, crucial for fat and protein metabolism. The lack of vitamin B12 results in the accumulation of methylmalonyl CoA, contributing to neurological manifestations. Additionally, it is vital for the synthesis of methionine from homocysteine, and its deficiency can lead to functional folate deficiency, which impacts red blood cell formation.

Pharmacodynamics

Cyanocobalamin corrects vitamin B12 deficiency and alleviates symptoms and laboratory abnormalities associated with pernicious anemia, such as megaloblastic indices, gastrointestinal lesions, and neurological damage. It is essential for growth, cell reproduction, hematopoiesis, nucleoprotein, and myelin synthesis. The drug significantly impacts fat and carbohydrate metabolism, as well as protein synthesis. Rapidly dividing cells, such as those in the bone marrow, have a high demand for vitamin B12. Parenteral administration of cyanocobalamin can quickly reverse the anemia and gastrointestinal symptoms of vitamin B12 deficiency, while also preventing the progression of related neurological damage.

Pharmacokinetics

Cyanocobalamin is absorbed in the intestine, primarily in the ileum, via specific transport mechanisms that may be impaired in individuals with intrinsic factor deficiency (as seen in pernicious anemia). Once absorbed, it is widely distributed in body tissues, with significant concentrations found in the liver, kidneys, and heart. The vitamin is stored in the liver, where it can be released into circulation as needed. Cyanocobalamin undergoes conversion to its active forms, methylcobalamin and adenosylcobalamin, which are utilized in various metabolic processes. The elimination half-life is variable, but it is generally excreted via urine as metabolites

Adverse effects

• Abdominal distension
• Decreased appetite
• Flatulence
• Nausea

Interactions

• Folic acid may interact with cyanocobalamin, especially in cases of megaloblastic anemia caused by folate deficiency.

Precautions

• Should not be given alone for pernicious anemia.
• Use caution in patients with Leber's disease, as it may worsen optic atrophy.

Pregnancy

Cyanocobalamin is essential during pregnancy as it helps prevent neural tube defects. It is advised that females of childbearing potential take 5 mg of folic acid daily before conception and throughout pregnancy.

Breast-feeding

Cyanocobalamin is generally considered safe during breastfeeding, but it is advised to monitor the infant for any adverse effects.

Storage

Store in a cool, dry place, away from direct sunlight. Protect from moisture.

Formulations

• Tablet: 1000 micrograms
• Tablet: 500 micrograms
• Tablet: 100 micrograms
• Oral solution: 50 micrograms per ml
• Solution for injection: 1000 micrograms per ml

Indications

• Vitamin C deficiency
• Scurvy
• Adjunct therapy in iron overload conditions

Dosage

Children: Child 1 month–3 years: 125–250 mg daily in 1–2 divided doses; Child 4–11 years: 250–500 mg daily in 1–2 divided doses; Child 12–17 years: 0.5–1 g daily in 1–2 divided doses.

Adults: 500 mg daily, taken in 1-2 divided doses, depending on the clinical condition and dietary needs.

Mechanism of action

Ascorbic acid functions primarily as a reducing agent, facilitating enzymatic reactions in the body, including the hydroxylation of proline and lysine in collagen synthesis. It also plays a role in the absorption of iron from the gastrointestinal tract and enhances the immune response.

Pharmacodynamics

Ascorbic acid is crucial for the maintenance of connective tissue and is involved in the metabolism of several amino acids. Its antioxidant properties help to mitigate oxidative stress and may play a role in reducing the risk of chronic diseases.

Pharmacokinetics

Ascorbic acid is absorbed in the intestines and is widely distributed throughout the body. The renal clearance of ascorbic acid is dose-dependent, with higher doses leading to increased excretion. The half-life varies but is generally around 15 to 30 minutes in healthy individuals, with tissue saturation levels influencing its retention.

Contra-indications

• Hypercalcaemia
• Hyperoxaluria
• Patients with cardiac dysfunction

Adverse effects

• Abdominal pain
• Headache
• Nausea
• Vomiting
• Diarrhoea
• Constipation
• Weight loss
• Polyuria
• Sweating
• Thirst
• Vertigo

Interactions

• Increases risk of cardiovascular adverse effects with iron chelators
• Increases risk of cardiovascular adverse effects with deferiprone
• Increases risk of cardiovascular adverse effects with desferrioxamine

Precautions

• Use with caution in patients with iron overload
• Monitor for symptoms of overdose

Pregnancy

High doses teratogenic in animals but therapeutic doses unlikely to be harmful.

Storage

Store in a cool, dry place away from direct sunlight.

Formulations

• Ascorbic acid 50 mg tablets
• Ascorbic acid 100 mg tablets
• Ascorbic acid 200 mg tablets
• Ascorbic acid 250 mg tablets
• Ascorbic acid 500 mg capsules

Indications

• Symptomatic relief of mild to moderate osteoarthritis of the knee

Dosage

Children: Refer to the BNF for Children for

Adults: 200–400 mg daily, maximum 6.5 mg/kg per day, or 1250 mg once daily, or 1500 mg once daily dissolved in at least 250 mL of water; review treatment if no benefit after 2–3 months.

Mechanism of action

The mechanism of action of glucosamine in joint health is not entirely clear, but it is believed to involve several pathways. Glucosamine is a precursor for glycosaminoglycans, which are essential for cartilage integrity. It may also reduce inflammation by inhibiting interferon gamma and Nuclear factor kappa B subunit 65 (NF-κB p65), which could improve symptoms of arthritis and joint pain. Upon uptake by living cells, glucosamine reacts with ATP to form glucosamine-6-phosphate, further contributing to glycosaminoglycan synthesis.

Pharmacodynamics

Glucosamine is theorized to provide essential building blocks for the synthesis of glycosaminoglycans, potentially slowing the progression of osteoarthritis and alleviating joint pain. Although some studies have indicated modest improvements in joint pain and function among users, the overall evidence remains inconclusive. Glycosaminoglycans are critical for maintaining cartilage elasticity, strength, and flexibility, which are vital for joint health.

Pharmacokinetics

After oral administration, glucosamine is absorbed in the gastrointestinal tract and transported into the bloodstream, where it is metabolized into various forms, including glucosamine-6-phosphate. The exact pharmacokinetics, such as absorption rate and half-life, remain largely undefined, and much of the data is derived from animal studies. Further research is required to clarify its pharmacokinetic profiles in humans.

Adverse effects

• Constipation
• Diarrhoea
• Fatigue
• Gastrointestinal discomfort
• Headache
• Nausea
• Flushing
• Skin reactions

Interactions

• Glucosamine + warfarin: Severe (increases anticoagulant effect)
• Glucosamine + coumarins: Severe (increases anticoagulant effect)
• Glucosamine + acenocoumarol: Unknown (decreases anticoagulant effect)
• Glucosamine + coumarins: Unknown (decreases anticoagulant effect)

Precautions

• Asthma
• Impaired glucose tolerance
• Predisposition to cardiovascular disease

Pregnancy

Safety during pregnancy has not been established; consult with a healthcare provider.

Breast-feeding

Safety during breastfeeding has not been established; consult with a healthcare provider.

Storage

Store in a cool, dry place away from direct sunlight.

Formulations

• Alateris®
• Dolenio®
• Glusartel®

Indications

• Osteoarthritis
• Joint pain
• Cartilage repair
• Joint health maintenance

Dosage

Children: Refer to healthcare professionals for guidance on dosing in children, as specific pediatric dosing information is not well established.

Adults: Refer to specific product labeling and consult healthcare professionals for guidance on dosing, as dosages can vary based on formulations and clinical guidelines.

Mechanism of action

Chondroitin works primarily by providing the building blocks necessary for the synthesis of glycosaminoglycans, which are critical components of cartilage. It is thought to inhibit the enzymes that break down cartilage, thereby promoting cartilage repair while also exhibiting anti-inflammatory properties. Additionally, chondroitin may enhance the retention of water in the cartilage, improving its elasticity and resilience.

Pharmacodynamics

Chondroitin has been shown to modulate inflammatory responses within the joints and may help to improve joint mobility and reduce pain associated with osteoarthritis. Its effects on cartilage metabolism are believed to contribute to its therapeutic benefits, although the clinical efficacy may vary among individuals. The anti-inflammatory properties may also contribute to a reduction in joint swelling and discomfort.

Pharmacokinetics

Chondroitin is poorly absorbed from the gastrointestinal tract, with bioavailability ranging from 12% to 36%. It is distributed in the extracellular matrix of cartilage and other connective tissues. Metabolism of chondroitin is not well understood, but it is believed to be metabolized in the liver. The elimination half-life in humans is not well defined, and it is primarily excreted via urine as metabolites. The effects of food on its absorption are still under investigation.

Adverse effects

• Nausea
• Diarrhea
• Constipation
• Abdominal pain
• Headache
• Skin reactions

Interactions

• Anticoagulants (e.g., warfarin) - may increase the risk of bleeding
• NSAIDs - may affect the efficacy of these medications

Precautions

• Use with caution in patients with a history of bleeding disorders
• Caution is advised in patients undergoing surgery due to potential bleeding risk
• Patients with shellfish allergies should consult a physician as some chondroitin supplements are derived from marine sources

Pregnancy

There is insufficient reliable information regarding the safety of chondroitin during pregnancy. It is advisable to avoid use unless prescribed by a healthcare professional.

Breast-feeding

It is not known if chondroitin is excreted in human milk. Caution is advised for nursing mothers considering its use.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Formulations

• Capsule
• Tablet
• Powder
• Liquid

Dosage

Children: As with adult dosing, methane is not used therapeutically in paediatrics, and thus no specific paediatric doses are provided. Refer to clinical guidelines for any relevant applications.

Adults: Methane is not typically administered as a drug in therapeutic contexts. Therefore, specific dosage recommendations for adults do not apply. Consult relevant guidelines or literature for any potential applications.

Mechanism of action

Methane serves as a carbon source in various metabolic processes, particularly in methanogenic archaea and certain bacteria. It participates in biochemical pathways such as methylphosphonate degradation and the oxidation of methane to methanol, facilitating energy production and carbon cycling in anaerobic environments.

Pharmacodynamics

In the context of environmental and biological systems, methane acts as a substrate for methanogenic organisms. These organisms utilize methane to produce energy through anaerobic respiration. The dynamics of methane in the environment are influenced by factors such as temperature, pH, and the presence of other substrates or microorganisms.

Pharmacokinetics

Methane is generally not absorbed in a conventional pharmacokinetic sense as it is primarily a gas. Its distribution and metabolism occur in the environment rather than within a biological system. Methane's clearance from the atmosphere occurs through various processes, including oxidation to carbon dioxide and assimilation by methanotrophic bacteria.

Pregnancy

Methane is not recommended during pregnancy due to potential risks associated with exposure to flammable gases.

Breast-feeding

There is limited information regarding the effects of methane during breastfeeding, exercise caution.

Storage

Store in a cool, dry place away from sources of ignition and incompatible materials.

Indications

• Osteoarthritis
• Joint pain
• Inflammatory conditions
• Musculoskeletal disorders
• Allergic rhinitis

Dosage

Children: Consult specific product guidelines or a healthcare provider for appropriate dosing in children.

Adults: Refer to specific product guidelines for dosing; typically, doses range from 1,500 mg to 6,000 mg per day, divided into multiple doses.

Mechanism of action

MSM is thought to exert its effects primarily through its role as a source of sulfur, which is vital for the synthesis of certain amino acids and proteins, including collagen. This compound has been shown to inhibit the production of pro-inflammatory cytokines and may reduce oxidative stress in tissues. Additionally, MSM may improve joint mobility and reduce pain by modulating inflammation and enhancing the repair processes of damaged tissues.

Pharmacodynamics

The pharmacodynamic properties of MSM are characterized by its anti-inflammatory and analgesic effects. It has been reported to reduce pain and improve function in individuals with osteoarthritis and other musculoskeletal disorders. MSM's ability to decrease inflammation may also extend to various other conditions associated with chronic inflammatory processes.

Pharmacokinetics

MSM is rapidly absorbed in the gastrointestinal tract, with peak plasma concentrations typically achieved within a few hours after administration. It is metabolized primarily in the liver, and its elimination occurs through renal pathways. The half-life of MSM in the body has not been extensively studied, but it is generally considered to have a relatively short duration of action, necessitating multiple doses throughout the day to maintain therapeutic levels.

Pregnancy

There is insufficient data on the safety of methylsulfonyl during pregnancy. Consultation with a healthcare provider is recommended.

Breast-feeding

Limited information is available on the excretion of methylsulfonyl in breast milk. Caution is advised when used during breastfeeding.

Storage

Store in a cool, dry place away from direct sunlight and moisture.

Indications

• Vitamin deficiency disorders
• Support for immune function
• Antioxidant support
• Promotion of bone health
• Maintenance of skin integrity
• Support for energy metabolism

Dosage

Children: Refer to specific vitamin formulations for pediatric dosing recommendations, as they should be tailored based on age, weight, and specific clinical needs.

Adults: Refer to specific vitamin formulations for individual dosing guidelines, as dosages can vary widely based on the type of vitamin and the clinical condition being treated.

Mechanism of action

Vitamins act through various mechanisms depending on their specific type. Water-soluble vitamins, such as B-complex vitamins and vitamin C, often function as coenzymes or precursors for enzyme cofactors, facilitating metabolic reactions. Fat-soluble vitamins, such as A, D, E, and K, typically function in hormone-like roles, influencing gene expression and cell signaling pathways.

Pharmacodynamics

The pharmacodynamics of vitamins involve their absorption, distribution, metabolism, and excretion in the body. Water-soluble vitamins are generally absorbed in the intestines and excess amounts are excreted in urine. Fat-soluble vitamins are stored in body tissues and can accumulate, leading to potential toxicity if consumed in excessive amounts. Each vitamin has specific physiological roles, such as vitamin A in vision, vitamin D in calcium metabolism, and vitamin K in blood clotting.

Pharmacokinetics

Vitamins vary in their pharmacokinetics based on solubility. Water-soluble vitamins are quickly absorbed and transported in the bloodstream, with renal excretion being the primary route of elimination. Fat-soluble vitamins require dietary fats for absorption and can remain in the body for longer periods due to storage in liver and adipose tissues. The half-life of vitamins can vary widely, with some needing regular replenishment and others having longer-lasting effects.

Pregnancy

Consult a healthcare professional before use. Vitamin supplementation may be necessary but should be approached with caution.

Breast-feeding

Consult a healthcare professional before use. Most vitamins are generally considered safe, but appropriate dosing is important.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Mechanism of action

Vitamin B12 serves as a cofactor for _methionine synthase_ and _L-methylmalonyl-CoA mutase_ enzymes. Methionine synthase is essential for the synthesis of purines and pyrimidines that form DNA. L-methylmalonyl-CoA mutase converts L-methylmalonyl-CoA to _succinyl-CoA_ in the degradation of propionate, an important reaction required for both fat and protein metabolism. It is a lack of vitamin B12 cofactor in the above reaction and the resulting accumulation of methylmalonyl CoA that is believed to be responsible for the neurological manifestations of B12 deficiency. Succinyl-CoA is also necessary for the synthesis of hemoglobin. In tissues, vitamin B12 is required for the synthesis of _methionine_ from homocysteine. Methionine is required for the formation of S-adenosylmethionine, a methyl donor for nearly 100 substrates, comprised of DNA, RNA, hormones, proteins, as well as lipids. Without vitamin B12, tetrahydrofolate cannot be regenerated from 5-methyltetrahydrofolate, and this can lead to functional folate deficiency,. This reaction is dependent on methylcobalamin (vitamin B12) as a co-factor and is also dependent on folate, in which the methyl group of methyltetrahydrofolate is transferred to homocysteine to form _methionine_ and _tetrahydrofolate_. Vitamin B12 incorporates into circulating folic acid into growing red blood cells; retaining the folate in these cells. A deficiency of vitamin B12 and the interruption of this reaction leads to the development of megaloblastic anemia.

Pharmacodynamics

**General effects** Cyanocobalamin corrects vitamin B12 deficiency and improves the symptoms and laboratory abnormalities associated with pernicious anemia (megaloblastic indices, gastrointestinal lesions, and neurologic damage). This drug aids in growth, cell reproduction, hematopoiesis, nucleoprotein, and myelin synthesis. It also plays an important role in fat metabolism, carbohydrate metabolism, as well as protein synthesis. Cells that undergo rapid division (for example, epithelial cells, bone marrow, and myeloid cells) have a high demand for vitamin B12. **Parenteral cyanocobalamin effects** The parenteral administration of vitamin B12 rapidly and completely reverses the megaloblastic anemia and gastrointestinal symptoms of vitamin B12 deficiency. Rapid parenteral administration of vitamin B12 in deficiency related neurological damage prevents the progression of this condition. **Nasal spray effects** In 24 vitamin B12 deficient patients who were already stabilized on intramuscular (IM) vitamin B12 therapy, single daily doses of intranasal cyanocobalamin for 8 weeks lead to serum vitamin B12 concentrations that were within the target therapeutic range (>200 ng/L).

Mechanism of action

The mechanism of action of glucosamine in joint health is unclear, however there are several possible mechanisms that contribute to its therapeutic effects. Because glucosamine is a precursor for glycosaminoglycans, and glycosaminoglycans are a major component of joint cartilage, glucosamine supplements may help to rebuild cartilage and treat the symptoms of arthritis. Some in vitro studies show evidence that glucosamine reduces inflammation via inhibition of interferon gamma and Nuclear factor kappa B subunit 65 (NF-κB p65), improving the symptoms of arthritis and joint pain. Clinical relevance is unknown at this time. When taken up by living cells, glucosamine reacts with ATP to form glucosamine-6-phosphate, the natural precursor of glycosaminoglycans (GAGs) that contain N-acetylglucosamine (keratan sulfate and Hyaluronan) and those that have N-acetylgalactosamine (heparan sulfate and chondroitin sulfate). These GAGs are polysaccharides composed of hexosamines and monosaccharides (e.g., galactose and glucuronic acid) arranged as a linear chain of repeating disaccharide units (such as the glucuronic acid and N-acetylgalactosamine-6-sulfate of chondroitin sulfate). With the exception of hyaluronan, GAGs do not exist alone in nature but are attached to specific "core" proteins, and the composite structures are called proteoglycans (protein-glycosaminoglycans). Both hyaluronan and many different kinds of proteoglycans (such as aggrecan, versican, and syndecan) are abundant throughout the body where they perform diverse functions.

Pharmacodynamics

The administration of glucosamine, in theory, provides a building block towards the synthesis of glycosaminoglycans, slowing the progression of osteoarthritis and relieving symptoms of joint pain. Studies to this date examining the efficacy of glucosamine sulfate have been inconclusive. Glycosaminoglycans contribute to joint cartilage elasticity, strength, and flexibility. A systematic review of various studies and guidelines determined that modest improvements were reported for joint pain and function in patients taking glucosamine. A consistent joint space narrowing was observed, but with an unclear clinical significance.