L-Arginine at 200mg/mL supports nitric oxide production, healthy vascular dilation, immune function, and athletic performance via IV, IM, or SQ injection. The highest-concentration standalone Arginine injectable in the catalog — double the concentration found in blend formulas.
L-Arginine is a conditionally essential amino acid and the body’s primary source of nitric oxide (NO) — the molecule that relaxes vascular smooth muscle and dilates blood vessels. At 200mg/mL, this standalone injectable delivers therapeutic Arginine concentrations directly into the bloodstream, providing double the concentration found in blend formulas like Amino Blend and Tres Aminos. For practices that want Arginine as the primary active rather than one component in a multi-amino blend, this is the right product.
| Specification | Detail |
|---|---|
| Active ingredient | L-Arginine HCl |
| Concentration | 200 mg/mL |
| Route | IV, IM, or SQ |
| Storage | Room temperature; protect from light |
| Product | Arginine Concentration | Other Amino Acids |
|---|---|---|
| L-Arginine Injection | 200 mg/mL | Standalone |
| Amino Blend | 100 mg/mL | + Carnitine, Lysine, Proline |
| Tres Aminos | 100 mg/mL | + Lysine, Proline |
| Circulate | 100 mg/mL | + Niacinamide, B6, Taurine |
Choose standalone L-Arginine when Arginine is the primary clinical target — vascular support, nitric oxide production, or performance protocols — at higher concentrations than blends provide.
Choose blend formulas when the clinical goal requires multiple amino acids working together.
Nitric oxide production: Arginine is the direct substrate for nitric oxide synthase (NOS), the enzyme that produces NO. Nitric oxide relaxes vascular smooth muscle, dilates blood vessels, and improves blood flow and oxygen delivery — the mechanism behind Arginine’s role in circulation and athletic performance.
Athletic performance support: Improved circulation and oxygen delivery to working muscle supports endurance, power output, and recovery. Arginine also supports creatine synthesis, which fuels short-burst muscular effort.
Immune function: Arginine is required for T-cell proliferation and the activity of natural killer cells — both central to adaptive immune response. Depleted in surgical and critically ill patients, making IV repletion clinically meaningful in post-procedure contexts.
Protein synthesis: As a building block for proteins and a component of the urea cycle, Arginine supports tissue repair, wound healing, and the nitrogen balance required for lean mass maintenance.
Growth hormone stimulation: Arginine stimulates pituitary growth hormone release, which is why high-dose Arginine protocols are used in some endocrine and performance medicine settings.
Precautions
Use with caution in patients with:
Common side effects: Nausea, abdominal discomfort, bloating, diarrhea, gout flares, hypotension.
Pregnancy and breastfeeding: effects not well established; use with caution and clinical specialist guidance.
As a compounded Rx product, L-Arginine Injection has not been evaluated by the FDA for safety, efficacy, or quality. Administer only under the supervision of a licensed healthcare provider in accordance with current clinical and state regulatory guidelines.
FAQs
Is a prescription required to order L-Arginine Injection?
Yes. Available exclusively to licensed healthcare providers and medical practices.
What is the concentration and route?
200mg/mL, for IV, IM, or SQ administration.
How does standalone L-Arginine differ from Arginine in blend formulas?
Standalone L-Arginine at 200mg/mL provides double the Arginine concentration found in Amino Blend, Tres Aminos, and Circulate (all at 100mg/mL), and delivers Arginine as the sole active for protocols where it is the primary clinical target.
What are the most important precautions?
Asthma (may worsen), herpes simplex (Arginine promotes viral replication), hypotension (additive vasodilatory effect with antihypertensives), and pre-surgical patients (discontinue 2 weeks before surgery).
This is a compounded medication. Compounded drugs are not FDA-approved and have not been evaluated by the FDA for safety, efficacy, or quality. This product is available by prescription only and is intended for use by or on the order of a licensed healthcare provider.
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