Zinc Sulfate 3mg/ml Inj, 10ml

Manufacturer ZYDUS PHARMACEUTICALS (USA) Active Ingredient Zinc Sulfate Injection(zink SUL fate) Pronunciation ZINK SUL-fayt
It is used to help growth and good health.
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Drug Class
Trace Element Supplement
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Pharmacologic Class
Essential Mineral
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Pregnancy Category
Category C
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FDA Approved
Jan 1970
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Zinc sulfate injection is a medicine given into a vein to provide your body with zinc, an essential mineral. Zinc is crucial for many body functions, including healing wounds, fighting infections, and proper growth. This injection is typically used when your body cannot get enough zinc from food or oral supplements, often in people receiving nutrition through an IV (like TPN).
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How to Use This Medicine

To use this medication correctly, follow your doctor's instructions and carefully read all the information provided to you. Take this medication exactly as directed, and be sure to follow all instructions closely. This medication is administered as an intravenous infusion, which means it is given into a vein over a period of time after being mixed with other fluids.

If you need to store this medication at home, consult with your doctor, nurse, or pharmacist to determine the proper storage procedure.

If you miss a dose, contact your doctor immediately to find out what steps to take next.
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Lifestyle & Tips

  • Follow your healthcare provider's instructions regarding diet and other medications.
  • Report any new or worsening symptoms to your healthcare provider.

Dosing & Administration

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Adult Dosing

Standard Dose: 2.5 to 4 mg elemental zinc/day (for stable patients on TPN). Up to 12 mg elemental zinc/day for acute catabolic states. For significant fluid loss (e.g., diarrhea, fistula), an additional 2 mg elemental zinc/day may be needed.
Dose Range: 2.5 - 12 mg

Condition-Specific Dosing:

stable_patients_TPN: 2.5 to 4 mg elemental zinc/day
acute_catabolic_states: Up to 12 mg elemental zinc/day
significant_fluid_loss: Additional 2 mg elemental zinc/day
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Pediatric Dosing

Neonatal: 300 mcg elemental zinc/kg/day (full-term infants); 400 mcg elemental zinc/kg/day (preterm infants <3 kg)
Infant: 300 mcg elemental zinc/kg/day (up to 5 mg elemental zinc/day)
Child: 50 mcg elemental zinc/kg/day (up to 5 mg elemental zinc/day)
Adolescent: 2.5 to 4 mg elemental zinc/day (similar to adult stable dose)
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Dose Adjustments

Renal Impairment:

Mild: No specific adjustment needed, monitor zinc levels.
Moderate: No specific adjustment needed, monitor zinc levels.
Severe: No specific adjustment needed, monitor zinc levels. Excretion may be reduced, increasing risk of accumulation.
Dialysis: Consider supplementation based on zinc levels, as dialysis can remove zinc. Monitor closely.

Hepatic Impairment:

Mild: No specific adjustment needed.
Moderate: No specific adjustment needed.
Severe: No specific adjustment needed.

Pharmacology

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Mechanism of Action

Zinc is an essential trace element required for the activity of over 300 enzymes involved in major metabolic pathways, including carbohydrate, lipid, protein, and nucleic acid synthesis. It plays a crucial role in immune function, wound healing, cell division, growth, and DNA synthesis. As a component of metalloenzymes, it is vital for normal growth and tissue repair.
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Pharmacokinetics

Absorption:

Bioavailability: 100% (IV administration)
Tmax: Not applicable (IV)
FoodEffect: Not applicable (IV)

Distribution:

Vd: Not precisely quantified, widely distributed throughout body tissues, with high concentrations in red blood cells, white blood cells, muscle, bone, skin, kidney, liver, and prostate.
ProteinBinding: Approximately 60-70% bound to albumin, 30-40% to alpha-2 macroglobulin, and a small percentage to amino acids.
CnssPenetration: Limited

Elimination:

HalfLife: Variable, approximately 125 days (whole body turnover)
Clearance: Primarily via feces (endogenous secretion into the intestine), with minor renal excretion.
ExcretionRoute: Fecal (major), Renal (minor)
Unchanged: 100% (as elemental zinc)
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Pharmacodynamics

OnsetOfAction: Immediate (replenishment of circulating zinc), but clinical effects (e.g., wound healing, immune function) may take days to weeks.
PeakEffect: Not directly applicable for a trace element; reflects sustained physiological levels.
DurationOfAction: Maintained as long as adequate supplementation continues and deficiency is corrected.

Safety & Warnings

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Side Effects

Urgent Side Effects: Seek Medical Help Right Away

While rare, this medication can cause severe and potentially life-threatening side effects. Immediately contact your doctor or seek medical attention if you experience any of the following symptoms, which may indicate a serious allergic reaction:

Rash
Hives
Itching
Red, swollen, blistered, or peeling skin, with or without fever
Wheezing
Tightness in the chest or throat
Difficulty breathing, swallowing, or talking
Unusual hoarseness
Swelling of the mouth, face, lips, tongue, or throat

Vein Irritation

This medication may cause irritation at the injection site. If you notice any of the following symptoms, inform your nurse promptly:

Redness
Burning
Pain
Swelling
Leaking of fluid at the injection site

Other Possible Side Effects

As with all medications, you may experience side effects. Although many people have no side effects or only mild ones, it's essential to discuss any concerns with your doctor. Contact your doctor or seek medical help if you experience any side effects that bother you or persist.

Reporting Side Effects

This list is not exhaustive, and you may have questions about other potential side effects. If you do, contact your doctor for guidance. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch. Your doctor can provide medical advice on managing side effects.
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Seek Immediate Medical Attention If You Experience:

  • Severe nausea or vomiting
  • Severe abdominal pain
  • Unusual tiredness or weakness
  • Signs of copper deficiency (e.g., unusual bruising, pale skin, frequent infections, numbness or tingling in hands/feet, difficulty walking)
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced.
All medications you are currently taking, including prescription and over-the-counter (OTC) drugs, natural products, and vitamins. This information will help your doctor and pharmacist assess potential interactions.
* Any existing health problems, as this medication may interact with them.

To ensure your safety, carefully review all your medications and health conditions with your doctor and pharmacist. Never start, stop, or adjust the dosage of any medication without first consulting your doctor to confirm it is safe to do so.
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Precautions & Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. Regular blood tests will be necessary, as directed by your doctor, to monitor your condition. Be sure to discuss any concerns or questions you have with your doctor.

This medication may contain aluminum, which can increase the risk of aluminum toxicity with long-term use. This risk is particularly higher if you have kidney problems or are a premature infant. It is crucial to discuss this potential risk with your doctor.

As this medication is administered as part of parenteral nutrition (PN), there is a risk of blood clots in the lungs, which can be life-threatening. If you have any questions or concerns about this risk, be sure to discuss them with your doctor.

If you are pregnant, planning to become pregnant, or are breast-feeding, it is essential to inform your doctor. You and your doctor will need to discuss the potential benefits and risks of this medication to both you and your baby to make an informed decision.
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Overdose Information

Overdose Symptoms:

  • Severe nausea
  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Headache
  • Dizziness
  • Lethargy
  • Fever
  • Chills
  • Copper deficiency (anemia, neutropenia, neurological symptoms)
  • Pancreatitis (rare)

What to Do:

Discontinue zinc administration. Symptomatic and supportive care. In cases of severe toxicity, chelation therapy may be considered, but is rarely needed for zinc. For copper deficiency, copper supplementation may be required. Call 1-800-222-1222 (Poison Control).

Drug Interactions

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Moderate Interactions

  • Copper: High doses of zinc can induce copper deficiency by increasing metallothionein synthesis in enterocytes, which binds copper and prevents its absorption. Monitor copper levels with prolonged high-dose zinc therapy.
  • Iron: High doses of iron can interfere with zinc absorption when taken orally. Less relevant for IV zinc, but important if oral iron is co-administered.
  • Tetracyclines (e.g., doxycycline, minocycline): Zinc can chelate tetracyclines, reducing their absorption and efficacy. Administer IV zinc separately if possible, or monitor for reduced antibiotic effect.
  • Quinolone antibiotics (e.g., ciprofloxacin, levofloxacin): Similar to tetracyclines, zinc can chelate quinolones, reducing their absorption. Administer IV zinc separately if possible, or monitor for reduced antibiotic effect.
  • Penicillamine: Zinc can reduce the absorption of penicillamine. Administer separately.

Monitoring

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Baseline Monitoring

Plasma Zinc Levels

Rationale: To confirm deficiency and establish baseline for therapy.

Timing: Prior to initiation of therapy.

Serum Copper Levels

Rationale: To assess baseline copper status, especially if high-dose zinc is anticipated, as zinc can induce copper deficiency.

Timing: Prior to initiation of therapy.

Alkaline Phosphatase (ALP)

Rationale: Zinc is a cofactor for ALP; low levels may indicate zinc deficiency.

Timing: Prior to initiation of therapy.

Clinical signs of zinc deficiency (e.g., dermatitis, poor wound healing, impaired taste/smell, immune dysfunction)

Rationale: To establish clinical need and monitor response.

Timing: Prior to initiation of therapy.

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Routine Monitoring

Plasma Zinc Levels

Frequency: Weekly initially, then monthly or as clinically indicated once stable.

Target: 70-120 mcg/dL (adults)

Action Threshold: If levels remain low despite adequate dosing, investigate malabsorption or increased losses. If levels are high, consider reducing dose to avoid toxicity.

Serum Copper Levels

Frequency: Monthly or every 3 months, especially with prolonged or high-dose zinc therapy.

Target: 70-140 mcg/dL (adults)

Action Threshold: If copper levels fall below normal, consider reducing zinc dose or supplementing copper.

Clinical response (e.g., wound healing, resolution of dermatitis, improved immune function)

Frequency: Ongoing clinical assessment.

Target: Improvement in symptoms

Action Threshold: Lack of improvement may indicate inadequate dosing, ongoing losses, or other underlying issues.

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Symptom Monitoring

  • Nausea
  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Headache
  • Dizziness
  • Lethargy
  • Fever
  • Chills
  • Copper deficiency symptoms (e.g., anemia, neutropenia, neurological symptoms like ataxia, peripheral neuropathy)

Special Patient Groups

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Pregnancy

Zinc is an essential nutrient during pregnancy. Deficiency can lead to adverse outcomes. Supplementation should be based on clinical need and monitored. Category C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

Trimester-Specific Risks:

First Trimester: Adequate zinc is crucial for early fetal development. Deficiency can increase risk of congenital malformations.
Second Trimester: Continued need for fetal growth and development.
Third Trimester: High demand for zinc during rapid fetal growth.
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Lactation

Zinc is naturally present in breast milk and is essential for infant growth and development. Supplementation in lactating mothers is generally considered safe and may be necessary if the mother is deficient. Monitor infant for any adverse effects, though unlikely at appropriate doses.

Infant Risk: Low risk at therapeutic doses. High doses in the mother could theoretically affect milk composition or infant zinc/copper balance, but this is rare.
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Pediatric Use

Essential for growth and development. Dosing is weight-based. Close monitoring of zinc and copper levels is crucial, especially in neonates and infants, due to their rapid growth and susceptibility to imbalances.

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Geriatric Use

No specific dose adjustments are typically required based on age alone. However, elderly patients may have impaired renal function or multiple comorbidities affecting zinc status, requiring careful monitoring of zinc and copper levels.

Clinical Information

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Clinical Pearls

  • Zinc sulfate injection is typically used for patients who cannot absorb zinc orally, such as those with short bowel syndrome, Crohn's disease, or on long-term parenteral nutrition.
  • Dosing is always expressed in terms of elemental zinc. Be careful with calculations as zinc sulfate heptahydrate (common form) is about 22.7% elemental zinc.
  • Prolonged high-dose zinc supplementation can induce copper deficiency. Always monitor copper levels when administering zinc long-term.
  • Zinc deficiency can manifest with dermatitis (especially acrodermatitis enteropathica-like rash), impaired wound healing, alopecia, immune dysfunction, and taste/smell disturbances.
  • Administer IV zinc slowly, usually as part of a TPN solution or diluted in a compatible IV fluid.
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Alternative Therapies

  • Oral zinc supplements (e.g., zinc gluconate, zinc acetate, zinc sulfate) for patients with intact gastrointestinal absorption.
  • Dietary zinc-rich foods (e.g., red meat, poultry, seafood, nuts, legumes, dairy products).
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Cost & Coverage

Average Cost: Varies, typically $10-$50 per 10ml vial
Generic Available: Yes
Insurance Coverage: Tier 1 or 2 (often covered for medical necessity)
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General Drug Facts

If your symptoms or health problems persist or worsen, it is essential to contact your doctor promptly. To ensure safe use, never share your medication with others or take someone else's medication. Store all medications in a secure location, out of reach of children and pets, to prevent accidental ingestion. Dispose of unused or expired medications properly; do not flush them down the toilet or pour them down the drain unless instructed to do so by a healthcare professional. If you are unsure about the proper disposal method, consult your pharmacist, who can also inform you about potential drug take-back programs in your area. Some medications may come with an additional patient information leaflet, which your pharmacist can provide. If you have any questions or concerns about your medication, discuss them with your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately contact your local poison control center or seek emergency medical attention. Be prepared to provide information about the medication taken, the amount, and the time of ingestion.