STERILE WATER FOR IRRIGATION
Clinical safety rating: caution
Comprehensive clinical and safety monograph for STERILE WATER FOR IRRIGATION (STERILE WATER FOR IRRIGATION).
Sterile water for irrigation serves as an isotonic, non-pyrogenic irrigation solution that maintains osmotic equilibrium and does not provide systemic pharmacologic effects. It acts solely as a mechanical flushing agent to cleanse, rinse, or moisten tissues during surgical or other medical procedures.
| Metabolism | Not metabolized; sterile water for irrigation is typically not absorbed into systemic circulation when used as directed for topical irrigation. |
| Excretion | Renal: virtually 100% as unchanged water; no biliary or fecal elimination under normal conditions. Excess water is excreted via urine with minimal insensible losses (skin, lungs) not accounted as drug elimination. |
| Half-life | Not applicable as a drug; water distribution follows body water turnover. From a pharmacokinetic perspective, the elimination half-life of a water load is approximately 2-4 hours in adults with normal renal function, reflecting renal excretion of excess volume. |
| Protein binding | 0%; water does not bind to plasma proteins. |
| Volume of Distribution | Total body water: approximately 0.6 L/kg (range 0.5-0.7 L/kg) in adults. Distributes throughout all body fluid compartments. |
| Bioavailability | Oral: 100% (absorbed via gastrointestinal tract); intravenous: 100%; irrigation: negligible systemic absorption unless mucosal barrier is compromised; intraperitoneal: nearly 100% absorption. |
| Onset of Action | Irrigation: immediate upon contact with tissues; intravenous: immediate expansion of intravascular volume within minutes. |
| Duration of Action | Irrigation: localized effect only during application; intravenous: volume expansion lasts until excess water is excreted renally, typically 1-2 hours after a bolus. Rehydration effect may persist longer if volume deficit is corrected. |
Irrigation solution: apply topically to surgical sites or body cavities as needed, typically 1-3 L per procedure via gravity flow or low-pressure irrigation. Not for injection.
| Dosage form | LIQUID |
| Renal impairment | No adjustment necessary for topical irrigation use. For intravenous use (non-approved), adjust based on fluid status and electrolyte monitoring. |
| Liver impairment | No adjustment necessary for topical irrigation use. |
| Pediatric use | Irrigation solution: volume as clinically indicated based on wound size and procedure; typical range 10-50 mL/kg per irrigation event. |
| Geriatric use | Use with caution due to potential fluid overload; monitor urine output and pulmonary status. Volume as clinically indicated, but limit to minimal necessary. |
| 1st trimester | Consult provider |
| 2nd trimester | Consult provider |
| 3rd trimester | Consult provider |
Clinical note
Comprehensive clinical and safety monograph for STERILE WATER FOR IRRIGATION (STERILE WATER FOR IRRIGATION).
| Breastfeeding | Sterile water for irrigation is not absorbed systemically; it is considered compatible with breastfeeding. M/P ratio is not applicable. |
| Teratogenic Risk | Sterile water for irrigation is not absorbed systemically; therefore, no fetal risk is anticipated regardless of trimester. |
| Fetal Monitoring | No specific monitoring required for the drug itself. Standard maternal and fetal monitoring per clinical context of irrigation use. |
■ FDA Black Box Warning
None
| Serious Effects |
["Intravenous administration","Use as a diluent or solvent for parenteral medications","Irrigation of closed body cavities where drainage is not possible (risk of fluid overload or electrolyte imbalance)","Known hypersensitivity to any component of the solution"]
| Precautions | ["Use only as a sterile, non-pyrogenic irrigation solution; do not use for intravenous injection or other parenteral routes","Do not use if solution contains particles or if container is damaged","May cause hemolysis if introduced intravascularly; avoid systemic absorption","Do not use for wound irrigation if prolonged contact with tissues is expected, as hypotonic solutions could cause cellular swelling","Not intended for use as a diluent or solvent for injectable drugs"] |
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| Fertility Effects | No known effects on fertility due to lack of systemic absorption. |