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Promethazine
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Promethazine is a first-generation antihistamine with potent sedative, antiemetic, and anticholinergic properties. It is commonly used to treat allergic reactions, nausea, vomiting, motion sickness, and as a sedative or sleep aid. Its broad pharmacological effects make it valuable in both acute and chronic medical settings for symptom relief and prevention
Description
Promethazine
Primary Uses
- Allergy Treatment
- Used to relieve symptoms of allergic conditions such as hay fever, urticaria, and rhinitis.
- Provides relief from itching, swelling, and rashes.
- Antiemetic Therapy
- Prevents and treats nausea and vomiting caused by motion sickness, surgery, chemotherapy, and radiation therapy.
- Sedation and Sleep Aid
- Utilized for its sedative effects to manage anxiety, insomnia, and preoperative sedation.
- Motion Sickness
- Administered to prevent and alleviate motion sickness symptoms.
Secondary Use
- Anaphylaxis Adjunct
- Used as part of emergency treatment to control allergic symptoms alongside epinephrine.
- Postoperative Nausea
- Employed to control nausea and vomiting following surgery.
- Adjunct in Pain Management
- Sometimes combined with analgesics to enhance pain relief and reduce nausea.
KEY PRODUCT FEATURES
1. Basic Identification Attributes
- Chemical Name (IUPAC): N,N-dimethyl-1-(10H-phenothiazin-10-yl)propan-2-amine
- Common/Trade Name: Promethazine
- CAS Number: 58-33-3
- HS Code: 2933.99
- Synonyms: Phenergan, Promethazine hydrochloride
2. Physical & Chemical Properties
- Physical State: White to off-white crystalline powder
- Color & Odor: Odorless to faint odor
- Solubility: Slightly soluble in water; soluble in alcohol and chloroform
- Melting Point: Approximately 214–217°C
3. Safety & Hazard Attributes
- GHS Classification: May cause sedation and dizziness; irritant to eyes and skin
- Toxicity: Moderate; use under medical supervision
- Exposure Limits: Follow occupational safety guidelines
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry place, protected from light
- Container Type: Sealed glass or plastic containers
- Shelf Life: Typically 2–3 years
- Handling Precautions: Avoid inhalation and skin contact
5. Regulatory & Compliance Attributes
- Approved by major pharmacopeias (USP, BP)
- Regulated as a prescription medication
6. Environmental & Health Impact
- Biodegradability: Readily biodegradable under environmental conditions
- Ecotoxicity: Low when disposed properly
- Bioaccumulation: Not significant
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE Required: Gloves recommended when handling powder or solutions
- Handling Guidelines: Use in well-ventilated areas; avoid direct contact
- Storage Measures: Keep containers tightly closed and protected from moisture
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if respiratory symptoms develop
- Skin Contact: Wash thoroughly with soap and water; seek medical advice if irritation persists
- Eye Contact: Rinse with water for 15 minutes; seek medical help if irritation continues
- Ingestion: Do not induce vomiting; seek emergency medical care immediately
Firefighting Measures
- Fire Hazards: Combustible under fire conditions
- Extinguishing Media: Water spray, foam, dry chemical, CO₂
- Special Precautions: Use protective equipment and breathing apparatus
- Hazardous Combustion Products: Carbon oxides and nitrogen oxides
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