Selenium Injection (Selenious Acid)

Product Overview

Selenium Injection (Selenious Acid) is a prescription injectable formulation of selenium, an essential trace element required for antioxidant defense, immune system function, thyroid hormone metabolism, and cellular protection against oxidative stress.

Selenium plays a vital role as a component of selenoproteins, including glutathione peroxidase, which help protect cells from free radical damage. Injectable administration allows for rapid and precise selenium repletion, particularly in patients with nutritional deficiencies, malabsorption syndromes, critical illness, or those receiving parenteral nutrition.

This medication is available by prescription only and must be administered under licensed healthcare supervision.

Dosage & Administration

General Dosing Information

Dosing of Selenium Injection is individualized based on the patient’s nutritional status, laboratory values, clinical condition, and therapeutic goals.

Typical Adult Use (Examples)

• Administered intravenously (IV)
• Dose and frequency depend on severity of deficiency and clinical indication

Common clinical uses include:

• Treatment and prevention of selenium deficiency
• Supplementation in patients receiving total parenteral nutrition (TPN)
• Supportive therapy in critical illness or malabsorption conditions

Administration Details

• Supplied as a sterile injectable solution
• Inspect solution prior to use; do not use if cloudy, discolored, or containing particulate matter
• Use aseptic technique during preparation and administration
• Administer IV slowly or as a diluted infusion, as prescribed
• Dispose of needles and syringes in approved sharps containers

Patients should not self-administer unless properly trained and authorized by their healthcare provider.

Treatment Duration & Monitoring

Treatment duration depends on the underlying cause of deficiency:

• Short-term repletion for acute deficiency states
• Maintenance supplementation for chronic deficiency or long-term parenteral nutrition

Monitoring may include:

• Serum selenium levels, when indicated
• Assessment of thyroid function and immune status
• Observation for signs of selenium toxicity or intolerance

Therapy should be adjusted based on clinical response and laboratory monitoring.

Mechanism of Action

Selenium Injection (Selenious Acid) works by:

• Serving as a critical component of selenoproteins involved in antioxidant defense
• Supporting glutathione peroxidase activity, protecting cells from oxidative damage
• Contributing to thyroid hormone activation and metabolism
• Enhancing immune system response and cellular integrity

Injectable delivery ensures immediate systemic availability, especially in patients with impaired absorption.

Contraindications & Precautions

Selenium Injection should be used with caution or avoided in patients with:

• Known hypersensitivity to selenium or formulation components
• Existing selenium toxicity
• Severe renal impairment, where selenium clearance may be reduced

This product is intended for medically supervised use only.

Drug Interactions

Patients should inform their healthcare provider of all medications and supplements. Potential considerations include:

• Concurrent trace element or antioxidant supplementation (risk of cumulative toxicity)
• No significant drug interactions are commonly reported, but monitoring is advised

Clinical judgment should guide concurrent therapy.

Adverse Reactions & Side Effects

Common

• Mild injection-site discomfort

Less Common

• Nausea
• Metallic taste
• Fatigue
• Rare hypersensitivity reactions

Excessive dosing may lead to selenosis, characterized by hair loss, nail brittleness, gastrointestinal upset, or neurologic symptoms.

Pregnancy & Breastfeeding

Selenium is an essential trace element; however, injectable supplementation during pregnancy or breastfeeding should be used only when medically indicated and under healthcare provider supervision.

Storage & Handling

• Store according to Angel Pharmacy compounding and dispensing guidelines
• Typically stored at controlled room temperature
• Protect from light
• Do not freeze
• Keep out of reach of children and pets

Unused or expired medication should be disposed of according to pharmacy or healthcare facility protocols.

Important Notice

This information is provided for educational purposes only and does not replace professional medical advice. All dosing, administration, and treatment decisions must follow the instructions of the prescribing healthcare provider.