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Vitamin K1
Overview
What is Vitamin K1?
Phytonadione is a vitamin, which is a clear, yellow to amber, viscous, odorless or nearly odorless liquid. It is insoluble in water, soluble in chloroform and slightly soluble in ethanol. It has a molecular weight of 450.70.
Phytonadione is 2-methyl-3-phytyl-1, 4-naphthoquinone. Its empirical formula is CHO and its structural formula is:
Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is a yellow, sterile, nonpyrogenic aqueous dispersion available for injection by the intravenous, intramuscular and subcutaneous routes. Each milliliter contains phytonadione 2 or 10 mg, polyoxyethylated fatty acid derivative 70 mg, dextrose, hydrous 37.5 mg in water for injection; benzyl alcohol 9 mg added as preservative. May contain hydrochloric acid for pH adjustment. pH is 6.3 (5.0 to 7.0). Phytonadione is oxygen sensitive.
What does Vitamin K1 look like?
What are the available doses of Vitamin K1?
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What should I talk to my health care provider before I take Vitamin K1?
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How should I use Vitamin K1?
Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is indicated in the following coagulation disorders which are due to faulty formation of factors II, VII, IX and X when caused by vitamin K deficiency or interference with vitamin K activity.
Vitamin K Injection is indicated in:
Whenever possible, Vitamin K Injection (Phytonadione Injectable Emulsion, USP) should be given by the subcutaneous route (See ). When intravenous administration is considered unavoidable, the drug should be injected very slowly, not exceeding 1 mg per minute.
Protect from light at all times.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Directions for Dilution
Vitamin K Injection may be diluted with 0.9% Sodium Chloride Injection, 5% Dextrose Injection, or 5% Dextrose and Sodium Chloride Injection. Benzyl alcohol as a preservative has been associated with toxicity in newborns. (See ). When dilutions are indicated, administration should be started immediately after mixture with the diluent, and unused portions of the dilution should be discarded, as well as unused contents of the ampul.
Prophylaxis of Hemorrhagic Disease of the Newborn
The American Academy of Pediatrics recommends that vitamin K be given to the newborn. A single intramuscular dose of Vitamin K Injection 0.5 to 1 mg within one hour of birth is recommended.
Treatment of Hemorrhagic Disease of the Newborn
Empiric administration of vitamin K should not replace proper laboratory evaluation of the coagulation mechanism. A prompt response (shortening of the prothrombin time in 2 to 4 hours) following administration of vitamin K is usually diagnostic of hemorrhagic disease of the newborn, and failure to respond indicates another diagnosis or coagulation disorder.
Vitamin K Injection 1 mg should be given either subcutaneously or intramuscularly. Higher doses may be necessary if the mother has been receiving oral anticoagulants.
Whole blood or component therapy may be indicated if bleeding is excessive. This therapy, however, does not correct the underlying disorder and Vitamin K Injection should be given concurrently.
Anticoagulant-Induced Prothrombin Deficiency in Adults
To correct excessively prolonged prothrombin time caused by oral anticoagulant therapy—2.5 to 10 mg or up to 25 mg initially is recommended. In rare instances 50 mg may be required. Frequency and amount of subsequent doses should be determined by prothrombin time response or clinical condition (See ). If in 6 to 8 hours after parenteral administration the prothrombin time has not been shortened satisfactorily, the dose should be repeated.
In the event of shock or excessive blood loss, the use of whole blood or component therapy is indicated.
Hypoprothrombinemia Due to Other Causes in Adults
A dosage of 2.5 to 25 mg or more (rarely up to 50 mg) is recommended, the amount and route of administration depending upon the severity of the condition and response obtained.
If possible, discontinuation or reduction of the dosage of drugs interfering with coagulation mechanisms (such as salicylates; antibiotics) is suggested as an alternative to administering concurrent Vitamin K Injection. The severity of the coagulation disorder should determine whether the immediate administration of Vitamin K Injection is required in addition to discontinuation or reduction of interfering drugs.
What interacts with Vitamin K1?
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What are the warnings of Vitamin K1?
If CDAD is suspected or confirmed, ongoing antibiotic use not directed against may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of , and surgical evaluation should be instituted as clinically indicated.
Benzyl alcohol as a preservative in Bacteriostatic Sodium Chloride Injection has been associated with toxicity in newborns. Data are unavailable on the toxicity of other preservatives in this age group. There is no evidence to suggest that the small amount of benzyl alcohol contained in Vitamin K Injection (Phytonadione Injectable Emulsion, USP), when used as recommended, is associated with toxicity.
An immediate coagulant effect should not be expected after administration of phytonadione. It takes a minimum of 1 to 2 hours for measurable improvement in the prothrombin time. Whole blood or component therapy may also be necessary if bleeding is severe.
Phytonadione will not counteract the anticoagulant action of heparin.
When vitamin K is used to correct excessive anticoagulant-induced hypoprothrombinemia, anticoagulant therapy still being indicated, the patient is again faced with the clotting hazards existing prior to starting the anticoagulant therapy. Phytonadione is not a clotting agent, but overzealous therapy with vitamin K may restore conditions which originally permitted thromboembolic phenomena. Dosage should be kept as low as possible, and prothrombin time should be checked regularly as clinical conditions indicate.
Repeated large doses of vitamin K are not warranted in liver disease if the response to initial use of the vitamin is unsatisfactory. Failure to respond to vitamin K may indicate that the condition being treated is inherently unresponsive to vitamin K.
Benzyl alcohol has been reported to be associated with a fatal "Gasping Syndrome" in premature infants.
WARNING: This product contains aluminum that may be toxic. Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they required large amounts of calcium and phosphate solutions, which contain aluminum.
Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.
What are the precautions of Vitamin K1?
Drug Interactions
Temporary resistance to prothrombin-depressing anticoagulants may result, especially when larger doses of phytonadione are used. If relatively large doses have been employed, it may be necessary when reinstituting anticoagulant therapy to use somewhat larger doses of the prothrombin-depressing anticoagulant, or to use one which acts on a different principle, such as heparin sodium.
Array
Prothrombin time should be checked regularly as clinical conditions indicate.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Studies of carcinogenicity, mutagenesis or impairment of fertility have not been conducted with Vitamin K Injection (Phytonadione Injectable Emulsion, USP).
Pregnancy
Animal reproduction studies have not been conducted with Vitamin KInjection. It is also not known whether Vitamin KInjection can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Vitamin K Injection should be given to a pregnant woman only if clearly needed.
Nursing Mothers
It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Vitamin K Injection is administered to a nursing woman.
Pediatric Use
Hemolysis, jaundice, and hyperbilirubinemia in neonates, particularly those that are premature, may be related to the dose of Vitamin K Injection. Therefore, the recommended dose should not be exceeded (See and ).
What are the side effects of Vitamin K1?
Deaths have occurred after intravenous and intramuscular administration. (See .)
Transient "flushing sensations" and "peculiar" sensations of taste have been observed, as well as rare instances of dizziness, rapid and weak pulse, profuse sweating, brief hypotension, dyspnea, and cyanosis.
Pain, swelling, and tenderness at the injection site may occur.
The possibility of allergic sensitivity including an anaphylactoid reaction, should be kept in mind.
Infrequently, usually after repeated injection, erythematous, indurated, pruritic plaques have occurred; rarely, these have progressed to scleroderma-like lesions that have persisted for long periods. In other cases, these lesions have resembled erythema perstans.
Hyperbilirubinemia has been observed in the newborn following administration of phytonadione. This has occurred rarely and primarily with doses above those recommended (See , ).
What should I look out for while using Vitamin K1?
Hypersensitivity to any component of this medication.
Benzyl alcohol as a preservative in Bacteriostatic Sodium Chloride Injection has been associated with toxicity in newborns. Data are unavailable on the toxicity of other preservatives in this age group. There is no evidence to suggest that the small amount of benzyl alcohol contained in Vitamin K Injection (Phytonadione Injectable Emulsion, USP), when used as recommended, is associated with toxicity.
An immediate coagulant effect should not be expected after administration of phytonadione. It takes a minimum of 1 to 2 hours for measurable improvement in the prothrombin time. Whole blood or component therapy may also be necessary if bleeding is severe.
Phytonadione will not counteract the anticoagulant action of heparin.
When vitamin K is used to correct excessive anticoagulant-induced hypoprothrombinemia, anticoagulant therapy still being indicated, the patient is again faced with the clotting hazards existing prior to starting the anticoagulant therapy. Phytonadione is not a clotting agent, but overzealous therapy with vitamin K may restore conditions which originally permitted thromboembolic phenomena. Dosage should be kept as low as possible, and prothrombin time should be checked regularly as clinical conditions indicate.
Repeated large doses of vitamin K are not warranted in liver disease if the response to initial use of the vitamin is unsatisfactory. Failure to respond to vitamin K may indicate that the condition being treated is inherently unresponsive to vitamin K.
Benzyl alcohol has been reported to be associated with a fatal "Gasping Syndrome" in premature infants.
WARNING: This product contains aluminum that may be toxic. Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they required large amounts of calcium and phosphate solutions, which contain aluminum.
Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.
What might happen if I take too much Vitamin K1?
The intravenous LD of Vitamin K Injection (Phytonadione Injectable Emulsion, USP) in the mouse is 41.5 and 52 mL/kg for the 0.2% and 1% concentrations, respectively.
How should I store and handle Vitamin K1?
Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Dispense in a tight container.Half-tablets (scored ursodiol 500 mg tablets broken in half) maintain acceptable quality for up to 28 days when stored in the current packaging (bottles) at 20° to 25°C (68° to 77°F). Due to the bitter taste, the halved segments should be stored separately from the whole tablets [].Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Dispense in a tight container.Half-tablets (scored ursodiol 500 mg tablets broken in half) maintain acceptable quality for up to 28 days when stored in the current packaging (bottles) at 20° to 25°C (68° to 77°F). Due to the bitter taste, the halved segments should be stored separately from the whole tablets [].Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is supplied in a package of 25 as follows:Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.]Protect from light. Keep ampuls in tray until time of use.Distributed by Hospira, Inc., Lake Forest, IL 60045 USALAB-1141-1.0Revised: 04/2018Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is supplied in a package of 25 as follows:Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.]Protect from light. Keep ampuls in tray until time of use.Distributed by Hospira, Inc., Lake Forest, IL 60045 USALAB-1141-1.0Revised: 04/2018Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is supplied in a package of 25 as follows:Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.]Protect from light. Keep ampuls in tray until time of use.Distributed by Hospira, Inc., Lake Forest, IL 60045 USALAB-1141-1.0Revised: 04/2018Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is supplied in a package of 25 as follows:Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.]Protect from light. Keep ampuls in tray until time of use.Distributed by Hospira, Inc., Lake Forest, IL 60045 USALAB-1141-1.0Revised: 04/2018Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is supplied in a package of 25 as follows:Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.]Protect from light. Keep ampuls in tray until time of use.Distributed by Hospira, Inc., Lake Forest, IL 60045 USALAB-1141-1.0Revised: 04/2018Vitamin K Injection (Phytonadione Injectable Emulsion, USP) is supplied in a package of 25 as follows:Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.]Protect from light. Keep ampuls in tray until time of use.Distributed by Hospira, Inc., Lake Forest, IL 60045 USALAB-1141-1.0Revised: 04/2018
Clinical Information
Chemical Structure
No Image foundClinical Pharmacology
Vitamin K Injection (Phytonadione Injectable Emulsion, USP) aqueous dispersion of vitamin K for parenteral injection, possesses the same type and degree of activity as does naturally-occurring vitamin K, which is necessary for the production via the liver of active prothrombin (factor II), proconvertin (factor VII), plasma thromboplastin component (factor IX), and Stuart factor (factor X). The prothrombin test is sensitive to the levels of three of these four factors−II, VII, and X. Vitamin K is an essential cofactor for a microsomal enzyme that catalyzes the post-translational carboxylation of multiple, specific, peptide-bound glutamic acid residues in inactive hepatic precursors of factors II, VII, IX, and X. The resulting gamma-carboxy-glutamic acid residues convert the precursors into active coagulation factors that are subsequently secreted by liver cells into the blood.
Phytonadione is readily absorbed following intramuscular administration. After absorption, phytonadione is initially concentrated in the liver, but the concentration declines rapidly. Very little vitamin K accumulates in tissues. Little is known about the metabolic fate of vitamin K. Almost no free unmetabolized vitamin K appears in bile or urine.
In normal animals and humans, phytonadione is virtually devoid of pharmacodynamic activity. However, in animals and humans deficient in vitamin K, the pharmacological action of vitamin K is related to its normal physiological function, that is, to promote the hepatic biosynthesis of vitamin K dependent clotting factors.
The action of the aqueous dispersion, when administered intravenously, is generally detectable within an hour or two and hemorrhage is usually controlled within 3 to 6 hours. A normal prothrombin level may often be obtained in 12 to 14 hours.
In the prophylaxis and treatment of hemorrhagic disease of the newborn, phytonadione has demonstrated a greater margin of safety than that of the water-soluble vitamin K analogues.
Non-Clinical Toxicology
Hypersensitivity to any component of this medication.Benzyl alcohol as a preservative in Bacteriostatic Sodium Chloride Injection has been associated with toxicity in newborns. Data are unavailable on the toxicity of other preservatives in this age group. There is no evidence to suggest that the small amount of benzyl alcohol contained in Vitamin K Injection (Phytonadione Injectable Emulsion, USP), when used as recommended, is associated with toxicity.
An immediate coagulant effect should not be expected after administration of phytonadione. It takes a minimum of 1 to 2 hours for measurable improvement in the prothrombin time. Whole blood or component therapy may also be necessary if bleeding is severe.
Phytonadione will not counteract the anticoagulant action of heparin.
When vitamin K is used to correct excessive anticoagulant-induced hypoprothrombinemia, anticoagulant therapy still being indicated, the patient is again faced with the clotting hazards existing prior to starting the anticoagulant therapy. Phytonadione is not a clotting agent, but overzealous therapy with vitamin K may restore conditions which originally permitted thromboembolic phenomena. Dosage should be kept as low as possible, and prothrombin time should be checked regularly as clinical conditions indicate.
Repeated large doses of vitamin K are not warranted in liver disease if the response to initial use of the vitamin is unsatisfactory. Failure to respond to vitamin K may indicate that the condition being treated is inherently unresponsive to vitamin K.
Benzyl alcohol has been reported to be associated with a fatal "Gasping Syndrome" in premature infants.
WARNING: This product contains aluminum that may be toxic. Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they required large amounts of calcium and phosphate solutions, which contain aluminum.
Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.
Temporary resistance to prothrombin-depressing anticoagulants may result, especially when larger doses of phytonadione are used. If relatively large doses have been employed, it may be necessary when reinstituting anticoagulant therapy to use somewhat larger doses of the prothrombin-depressing anticoagulant, or to use one which acts on a different principle, such as heparin sodium.
Prothrombin time should be checked regularly as clinical conditions indicate.
Temporary resistance to prothrombin-depressing anticoagulants may result, especially when larger doses of phytonadione are used. If relatively large doses have been employed, it may be necessary when reinstituting anticoagulant therapy to use somewhat larger doses of the prothrombin-depressing anticoagulant, or to use one which acts on a different principle, such as heparin sodium.
Laboratory Tests
Prothrombin time should be checked regularly as clinical conditions indicate.
Deaths have occurred after intravenous and intramuscular administration. (See .)
Transient "flushing sensations" and "peculiar" sensations of taste have been observed, as well as rare instances of dizziness, rapid and weak pulse, profuse sweating, brief hypotension, dyspnea, and cyanosis.
Pain, swelling, and tenderness at the injection site may occur.
The possibility of allergic sensitivity including an anaphylactoid reaction, should be kept in mind.
Infrequently, usually after repeated injection, erythematous, indurated, pruritic plaques have occurred; rarely, these have progressed to scleroderma-like lesions that have persisted for long periods. In other cases, these lesions have resembled erythema perstans.
Hyperbilirubinemia has been observed in the newborn following administration of phytonadione. This has occurred rarely and primarily with doses above those recommended (See , ).
Reference
This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"
While we update our database periodically, we cannot guarantee it is always updated to the latest version.
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Clonazepam Description Each single-scored tablet, for oral administration, contains 0.5 mg, 1 mg, or 2 mg Clonazepam, USP, a benzodiazepine. Each tablet also contains corn starch, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Clonazepam tablets USP 0.5 mg contain Yellow D&C No. 10 Aluminum Lake. Clonazepam tablets USP 1 mg contain Yellow D&C No. 10 Aluminum Lake, as well as FD&C Blue No. 1 Aluminum Lake. Chemically, Clonazepam, USP is 5-(o-chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one. It is a light yellow crystalline powder. It has the following structural formula: C15H10ClN3O3 M.W. 315.72Tips
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Interactions
Interactions
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