arginine hydrochloride + lysine hydrochloride: prescribing and clinical use
Focused clinical detail for use alongside current product information, local policy and patient-specific assessment.
arginine hydrochloride + lysine hydrochloride: clinical details
Prescribing considerations
- Restrict use to specialist peptide-receptor radionuclide therapy services.
- Arrange antiemetic prophylaxis and assess hydration and fluid-load tolerance.
- Consider increased risks from hyperkalaemia and volume overload in renal impairment or severe heart failure.
- Safety and efficacy have not been established in children.
Contraindications and cautions
- Hypersensitivity to arginine, lysine or an excipient.
- Clinically significant hyperkalaemia that has not been adequately corrected.
- Do not administer when creatinine clearance is below 30 mL/min.
Monitoring
- Check serum potassium before administration and correct clinically significant elevation.
- Assess creatinine and creatinine clearance before administration.
- Check liver-function markers, particularly where severe hepatic impairment is suspected.
- Monitor vital signs during infusion and assess for hyperkalaemia symptoms.
- Obtain an ECG before discharge when clinically significant hyperkalaemia is a concern.
Clinical pharmacology
Arginine and lysine undergo glomerular filtration and competitively inhibit renal tubular reabsorption of lutetium-177 oxodotreotide. The water-soluble amino acids distribute rapidly and are cleared through renal and non-renal pathways.
Formulation and product differences
- The selected product is a clear, colourless intravenous solution containing water for injections as its only excipient.
- It is supplied in a single-use infusion bag and must not be diluted or mixed with other medicines.
- Do not use cloudy solutions, solutions containing deposits, or damaged packaging.
arginine hydrochloride + lysine hydrochloride interactions
Formal interaction studies have not been performed. A complete medication review remains important because the infusion commonly causes a temporary rise in blood potassium.
Medicines associated with high potassium
These should be reviewed if potassium is raised because the infusion can further increase serum potassium.
Other medicines
No interaction through the medicine's kidney reabsorption mechanism is expected, but all prescribed, non-prescribed and complementary products should still be disclosed.
Sources
These sources were used to prepare and review this medicine page.
Prepared and reviewed by the iatroX editorial team.