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L-Cysteine HCl Injection
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Drug Name:

L-Cysteine HCl Injection Rx

Generic Name and Formulations:
L-Cysteine HCl 50mg/mL; soln for IV infusion after dilution; contains aluminum, sulfur; preservative-free.

Company:
Teva Pharmaceuticals

Therapeutic Use:

Indications for L-Cysteine HCl Injection:

An additive to crystalline amino acid injections to meet essential nutritional requirements for infants given TPNs.

Adult:

Not applicable.

Children:

See literature. Rotate inj site. Give by central venous infusion. Add 0.5g L-Cysteine with 12.5g crystalline amino acid injection; dilute as indicated.

Contraindications:

Hepatic coma. Metabolic disorders (eg, impaired nitrogen utilization).

Warnings/Precautions:

Hepatic, renal, pulmonary, or cardiac insufficiency. Hyperkalemia. Metabolic or respiratory alkalosis. Monitor hepatic and renal function; discontinue if BUN levels exceed normal postprandial limits and continue to rise. Monitor blood (eg, CBC, ammonia, glucose, electrolytes, cholesterol, acid-base balance, serum proteins, osmolarity), urine osmolarity and glucose during therapy. Premature neonates. Pregnancy.

Interactions:

Concomitant tetracycline reduces nitrogen sparing effects.

Pharmacological Class:

Amino acid.

Adverse Reactions:

Local reactions (eg, warm sensation, erythema, phlebitis, thrombosis), flushing, fever, nausea.

How Supplied:

Single-dose vials (10mL)—10

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