ZINC CHLORIDE IN PLASTIC CONTAINER
Clinical safety rating: caution
Comprehensive clinical and safety monograph for ZINC CHLORIDE IN PLASTIC CONTAINER (ZINC CHLORIDE IN PLASTIC CONTAINER).
Zinc is an essential trace element that serves as a cofactor for numerous enzymes involved in protein synthesis, nucleic acid metabolism, and cell division. It stabilizes cell membranes and modulates immune function. In wound healing, zinc promotes epithelialization and collagen synthesis.
| Metabolism | Zinc is primarily absorbed in the duodenum and jejunum. It undergoes enterohepatic circulation and is excreted mainly in feces (biliary and pancreatic secretions) and urine to a lesser extent. |
| Excretion | Primarily renal (fecal minimal). Urinary excretion accounts for >90% of absorbed zinc. Biliary excretion is negligible. |
| Half-life | Terminal elimination half-life is approximately 1-2 hours for ionic zinc, but may be prolonged up to 12-24 hours in zinc-replete states due to redistribution. Clinical context: short half-life supports frequent dosing in parenteral nutrition. |
| Protein binding | Approximately 60-70% bound to albumin (mainly) and α2-macroglobulin. Free fraction is ~30-40%. |
| Volume of Distribution | Vd ≈ 1.0-1.5 L/kg, indicating distribution into total body water and extensive tissue binding (e.g., muscle, bone, liver). |
| Bioavailability | Intravenous: 100% (direct administration). Not applicable for oral or other routes in this container formulation. |
| Onset of Action | Intravenous administration: onset within minutes for maintenance of zinc homeostasis, but clinical effect on wound healing or immune function may take days to weeks. No relevant oral route for this formulation. |
| Duration of Action | Duration of effect on serum zinc levels is 4-6 hours after a single IV dose; clinical effects on deficiency states require continuous supplementation for days to weeks. |
| Molecular Weight | 136.28 |
For total parenteral nutrition: 2.5-5 mg zinc (as zinc chloride) per day intravenously. For zinc deficiency: 0.5-1 mg zinc/kg/day IV. Route: IV infusion. Frequency: Daily.
| Dosage form | INJECTABLE |
| Renal impairment | CrCl 10-50 mL/min: reduce dose by 50%. CrCl <10 mL/min: avoid use or monitor zinc levels closely. |
| Liver impairment | No specific Child-Pugh based adjustment. Use with caution in severe hepatic impairment; monitor zinc levels. |
| Pediatric use | For TPN: term infants: 250-300 mcg/kg/day IV; preterm infants: 400-450 mcg/kg/day IV; children 1-5 years: 50 mcg/kg/day IV; children >5 years: 2.5-5 mg/day IV. For deficiency: 0.5-1 mg zinc/kg/day IV. |
| Geriatric use | No specific dose adjustment. Monitor renal function and zinc levels; start at lower end of dosing range. |
| 1st trimester | Zinc chloride is an essential trace element. At therapeutic doses, it is generally considered safe, but high doses may be toxic. No adequate studies in pregnant women; use only if clearly needed. |
| 2nd trimester | Same as T1. Zinc is required for fetal development, but avoid excessive supplementation as high levels may be teratogenic in animal studies. |
| 3rd trimester | Same as T1 and T2. Zinc transfer to fetus increases in late pregnancy; monitor for toxicity if using high doses. |
Clinical note
Comprehensive clinical and safety monograph for ZINC CHLORIDE IN PLASTIC CONTAINER (ZINC CHLORIDE IN PLASTIC CONTAINER).
| Placental transfer | Zinc crosses the placenta; cord blood zinc levels correlate with maternal levels. Transfer is regulated and increases in later pregnancy. |
| Breastfeeding | Zinc is excreted into breast milk in small amounts. Therapeutic doses are considered compatible with breastfeeding. However, high doses may lead to accumulation in the infant. Caution is advised with intravenous zinc chloride administration during lactation. |
■ FDA Black Box Warning
None.
| Serious Effects |
Hypersensitivity to zinc chloride or any componentWilson disease (relative contraindication, may worsen copper deficiency)
| Precautions | Use with caution in patients with renal impairment due to risk of accumulation., Copper deficiency may occur with prolonged zinc supplementation; monitor copper levels., Intravenous administration may cause phlebitis or tissue necrosis if extravasation occurs., Hypersensitivity reactions including anaphylaxis have been reported. |
| Food/Dietary | Zinc absorption from oral sources may be reduced by high dietary fiber, phytates (in whole grains, legumes), and calcium or iron supplements. However, this IV formulation bypasses the gastrointestinal tract, so no direct food interactions. Maintain balanced nutrition as advised by your dietitian. |
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| Lactation Rating | L2 (Safer) |
| Teratogenic Risk | Zinc chloride is an essential trace element; severe zinc deficiency can cause fetal malformations, but therapeutic supplementation at recommended doses is not teratogenic. No specific teratogenicity data for intravenous zinc chloride; animal studies at high doses show some fetal effects, but relevance unknown. First trimester: No known teratogenic risk at physiologic doses. Second/third trimester: No known risk at physiologic doses. |
| Fetal Monitoring | Monitor maternal serum zinc levels to avoid toxicity (target 70-120 mcg/dL). Monitor fetal growth and amniotic fluid index during prolonged therapy. Assess for maternal gastrointestinal symptoms, copper deficiency, and renal function. |
| Fertility Effects | Zinc is essential for reproductive function; deficiency may impair fertility. Therapeutic zinc supplementation does not adversely affect fertility; high doses may interfere with copper absorption and potentially affect spermatogenesis. |
| Clinical Pearls | Zinc chloride in plastic container is an intravenous formulation used for total parenteral nutrition (TPN) supplementation. Monitor serum zinc levels regularly to avoid toxicity, especially in patients with renal impairment. Zinc deficiency can cause dermatitis, diarrhea, and impaired wound healing. Copper deficiency may occur with high zinc doses due to competitive absorption. Avoid mixing with alkaline solutions as zinc chloride may precipitate. |
| Patient Advice | This medication is given intravenously, usually as part of your total nutrition plan. · Your healthcare provider will monitor your zinc levels with regular blood tests. · Do not consume zinc supplements or multivitamins without consulting your doctor. · Report any signs of allergic reaction, such as rash, itching, or difficulty breathing. · Inform your doctor if you have kidney problems or are on dialysis. |