Heparin Lock Preservative Free
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(Heparin Lock Flush) Solution, USP
- Patient Information:
Heparin is a heterogeneous group of straight-chain anionic mucopolysaccharides, called glycosaminoglycans, having anticoagulant properties. Although others may be present, the main sugars occurring in heparin are: (1) α-L-iduronic acid 2-sulfate, (2) 2-deoxy-2-sulfamino-α-D-glucose 6-sulfate, (3) β-D-glucuronic acid, (4) 2-acetamido-2-deoxy-α-D-glucose and (5) α-L-iduronic acid. These sugars are present in decreasing amounts, usually in the order (2) > (1) > (4) > (3) > (5), and are joined by glycosidic linkages, forming polymers of varying sizes. Heparin is strongly acidic because of its content of covalently linked sulfate and carboxylic acid groups. In heparin sodium, the acidic protons of the sulfate units are partially replaced by sodium ions.
Structural formula of Heparin Sodium (representative sub-units):
HEP-LOCK U/P (Preservative-Free Heparin Lock Flush Solution, USP) is a sterile solution for intravenous flush only. It is not to be used for anticoagulant therapy. HEP-LOCK U/P (preservative-free heparin lock flush solution) is specially formulated for use in situations where the use of preservatives is not advisable. Each mL contains heparin sodium 10 or 100 USP units, derived from porcine intestines and standardized for use as an anticoagulant, sodium chloride 8 mg, monobasic sodium phosphate monohydrate 2.3 mg, and dibasic sodium phosphate anhydrous 0.5 mg in Water for Injection. pH 5.0-7.5. The potency is determined by biological assay using a USP reference standard based on units of heparin activity per milligram.
What are the precautions when taking preservative-free heparin lock flush solution (HEP-LOCK U/P)?
Before using heparin, tell your doctor or pharmacist if you are allergic to it; or to pork products; or if you have any other allergies. This product may contain inactive ingredients (such as benzyl alcohol found in some brands), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
This medication does not pass into breast milk. Consult your doctor before...
Last reviewed on RxList: 1/26/2009
This monograph has been modified to include the generic and brand name in many instances.
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