L-cysteine Hcl Injection

  • Vitamins, minerals, supplements

L-cysteine Hcl Injection Generic Name & Formulations

General Description

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

Pharmacological Class

Amino acid.

How Supplied

Single-dose vials (10mL)—10


L-cysteine Hcl Injection Indications


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

L-cysteine Hcl Injection Dosage and Administration


Not applicable.


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.

L-cysteine Hcl Injection Contraindications


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

L-cysteine Hcl Injection Boxed Warnings

Not Applicable

L-cysteine Hcl Injection 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.

L-cysteine Hcl Injection Pharmacokinetics

See Literature

L-cysteine Hcl Injection Interactions


Concomitant tetracycline reduces nitrogen sparing effects.

L-cysteine Hcl Injection Adverse Reactions

Adverse Reactions

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

L-cysteine Hcl Injection Clinical Trials

See Literature

L-cysteine Hcl Injection Note

Not Applicable

L-cysteine Hcl Injection Patient Counseling

See Literature