Sm Fibros
Sm Fibros Uses, Dosage, Side Effects, Food Interaction and all others data.
Beta-carotene, with the molecular formula C40H56, belongs to the group of carotenoids consisting of isoprene units. The presence of long chains of conjugated double bonds donates beta-carotene with specific colors. It is the most abundant form of carotenoid and it is a precursor of the vitamin A. Beta-carotene is composed of two retinyl groups. It is an antioxidant that can be found in yellow, orange and green leafy vegetables and fruits. Under the FDA, beta-carotene is considered as a generally recognized as safe substance (GRAS).
Oral administration of beta-carotene increases the serum concentration of beta-carotene by 60% but it does not change the concentration found in the heart, liver or kidneys. In vitro studies in hepatocytes have shown that beta-carotene ameliorates oxidative stress, enhances antioxidant activity and decreases apoptosis.
Other than the antioxidant activities, some other actions have been correlated to beta-carotene. It is thought to have detoxifying properties, as well as to help increase resistance to inflammation and infection and increase immune response and enhance RNA production.
Copper is a transition metal and a trace element in the body. It is important to the function of many enzymes including cytochrome c oxidase, monoamine oxidase and superoxide dismutase . Copper is commonly used in contraceptive intrauterine devices (IUD) .
Copper is incorporated into many enzymes throughout the body as an essential part of their function . Copper ions are known to reduce fertility when released from copper-containing IUDs .
Lycopene is a naturally occuring red carotenoid pigment that is responsible in red to pink colors seen in tomatoes, pink grapefruit, and other foods . Having a chemical formula of C40H56, lycopene is a tetraterpene assembled from eight isoprene units that are solely composed of carbon and hydrogen. Lycophene may undergo extensive isomerization that allows 1056 theoretical cis-trans configurations; however the all-trans configuration of lycopene is the most predominant isomer found in foods that gives the red hue. Lycopene is a non-essential human nutrient that is classified as a non-provitamin A carotenoid pigment since it lacks a terminal beta ionone ring and does not mediate vitamin A activity. However lycophene is a potent antioxidant molecule that scavenges reactive oxygen species (ROS) singlet oxygen. Tomato lycopene extract is used as a color additive in food products.
Zinc sulfate is the inorganic compound with the formula ZnSO4 and historically known as "white vitriol". It is on the World Health Organization's List of Essential Medicines, a list of the most important medication needed in a basic health system.
Zinc has been identified as a cofactor for over 70 different enzymes, including alkaline phosphatase, lactic dehydrogenase and both RNA and DNA polymerase. Zinc facilitates wound healing, helps maintain normal growth rates, normal skin hydration and the senses of taste and smell.
| Trade Name | Sm Fibros |
| Generic | Vitamin E / Tocopherol + Copper + Zinc Sulfate + Beta Carotene + L-selenium + Alpha Lipoic Acid + Lycopene |
| Weight | 10iu, 1mg, 27.5mg, 10mg, 75mcg, 50mg, 5mg |
| Type | Capsule |
| Therapeutic Class | |
| Manufacturer | Indoco Remedies Ltd |
| Available Country | India |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
Beta carotene is a vitamin A precursor found in various nutritional supplements and health products.
Beta-carotene is FDA approved to be used as a nutrient supplement and to be even added in infant formula as a source of vitamin A. It is also approved to be used as a color additive for food products, drugs (with the label of "only as a color additive") and cosmetics.
It is used commonly for the reduction of photosensitivity in patients with erythropoietic protoporphyria and other photosensitivity diseases.
Copper is a transition metal found in a variety of supplements and vitamins, including intravenous solutions for total parenteral nutrition (TPN).
For use in the supplementation of total parenteral nutrition and in contraception with intrauterine devices .
Lycopene is an ingredient found in a variety of supplements and vitamins.
Zinc sulfate is a drug used to replenish low levels of zinc or prevent zinc deficiency, or to test for zinc deficiency.
This medication is a mineral used to treat or prevent low levels of zinc alone and together with oral rehydration therapy (ORT). It is also used as a topical astringent. Zinc Sulfate Injection, USP is indicated for use as a supplement to intravenous solutions given for TPN.
Sm Fibros is also used to associated treatment for these conditions: Deficiency, Vitamin A, Nutritional supplementationEmergency Contraception, IUD, Trace Element Deficiency, Dietary supplementationNutritional supplementationDry Eyes, Local itching, Localized pain, Localized swelling, Nutritional supplementation
How Sm Fibros works
Beta-carotene is an antioxidant that presents significant efficacy against the reactive oxygen species singlet oxygen. Beta-carotene acts as a scavenger of lipophilic radicals within the membranes of every cell compartments. It also presents an oxidative modification of LDL. The presence of long chains of conjugated double bonds is responsible for its antioxidative properties by allowing beta-carotene to chelate oxygen-free radicals and dissipate their energy. The chelation of free radicals inhibits the peroxidation of lipids.
The effect of beta-carotene in the immune response is thought to be related to the direct effect on the thymus which increases the production of immune cells.
Copper is absorbed from the gut via high affinity copper uptake protein and likely through low affinity copper uptake protein and natural resistance-associated macrophage protein-2 . It is believed that copper is reduced to the Cu1+ form prior to transport. Once inside the enterocyte, it is bound to copper transport protein ATOX1 which shuttles the ion to copper transporting ATPase-1 on the golgi membrane which take up copper into the golgi apparatus. Once copper has been secreted by enterocytes into the systemic circulation it remain largely bound by ceruloplasmin (65-90%), albumin (18%), and alpha 2-macroglobulin (12%).
Copper is an essential element in the body and is incorporated into many oxidase enzymes as a cofactor . It is also a component of zinc/copper super oxide dismutase, giving it an anti-oxidant role. Copper defiency occurs in Occipital Horn Syndrome and Menke's disease both of which are associated with impaired development of connective tissue due to the lack of copper to act as a cofactor in protein-lysine-6-oxidase. Menke's disease is also associated with progressive neurological impairment leading to death in infancy. The precise mechanisms of the effects of copper deficiency are vague due to the wide range of enzymes which use the ion as a cofactor.
Copper appears to reduce the viabilty and motility of spermatozoa . This reduces the likelihood of fertilization with a copper IUD, producing copper's contraceptive effect . The exact mechanism of copper's effect on sperm are unknown.
Zinc inhibits cAMP-induced, chloride-dependent fluid secretion by inhibiting basolateral potassium (K) channels, in in-vitro studies with rat ileum. This study has also shown the specificity of Zn to cAMP-activated K channels, because zinc did not block the calcium (Ca)-mediated K channels. As this study was not performed in Zn-deficient animals, it provides evidence that Zn is probably effective in the absence of Zn deficiency. Zinc also improves the absorption of water and electrolytes, improves regeneration of the intestinal epithelium, increases the levels of brush border enzymes, and enhances the immune response, allowing for a better clearance of the pathogens.
Toxicity
Beta-carotene is not toxic but the high and constant administration of this substance can translate into skin yellow coloration. Some reports have indicated that administration of high and periodic doses of beta-carotene are correlated to the increase in cancer incidence. This risk seems to be very elevated in the case of smokers. The registered LD50 of beta-carotene is >5000 mg/kg.
Copper toxicity is belevied to be due to fenton-type redox reactions occuring with high copper concentrations which produce damaging reactive oxygen species .
Human : TDLo ( Oral) 45mg/kg/7D-C : Normocytic anemia, pulse rate increase without fall inBP Human: TDLo (oral) 106mg/kg : Hypermotylity, diarrhea Mouse ; LD50 Oral : 245mg/kg Mouse : LD50 : subcutaneous : 781mg/kg
Volume of Distribution
No pharmacokinetic studies have been performed regarding the volume of distribution of beta-carotene.
After absorption zinc is bound to protein metallothionein in the intestines. Zinc is widely distributed throughout the body. It is primarily stored in RBCs, WBCs, muscles, bones, Skin, Kidneys, Liver, Pancreas, retina, and prostate.
Elimination Route
After administration of beta-carotene, some of the administered dose is absorbed into the circulatory system unchanged and stored in the fat tissue. The coadministration of beta-carotene and a high-fat content diet is correlated to a better absorption of beta-carotene. The absorption is also dependent on the isomeric form of the molecule where the cis conformation seems to present a higher bioavailability. The absorption of beta-carotene is thought to be performed in 6-7 hours.
The reported AUC of beta-carotene when administered orally from 0 to 440 hours after initial administration was reported to be 26.3 mcg.h/L. The maximal concentration of beta-carotene is attained in a dual pharmacokinetic profile after 6 hours and again after 32 hours with a concentration of 0.58 micromol/L.
Copper absorption varies inversely with intake. Absorption range is 12-65%.
Approximately 20 to 30% of dietary zinc is absorbed, primarily from the duodenum and ileum. The amount absorbed is dependent on the bioavailability from food. Zinc is the most bioavailable from red meat and oysters. Phytates may impair absorption by chelation and formation of insoluble complexes at an alkaline pH. After absorption, zinc is bound in the intestine to the protein metallothionein. Endogenous zinc can be reabsorbed in the ileum and colon, creating an enteropancreatic circulation of zinc.
Half Life
The apparent half-life of beta-carotene is of 6-11 days after initial administration.
3 hours
Clearance
The clearance rate of beta-carotene administered orally is 0.68 nmol/L each hour.
Elimination Route
The unabsorbed carotene is excreted in feces. It is also excreted in feces and urine as metabolites. The consumption of dietary fiber can increase the fecal excretion of fats and other fat-soluble compounds such as beta-carotene.
Copper appears to be eliminated primarily through bile .
Primarily fecal (approximately 90%); to a lesser extent in the urine and in perspiration.
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