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Chemical Name: Dimenhydrinate
Common Names: Dramamine, Travel Sickness Tablets
Chemical Family: Antihistamine/Ethanolamine derivative
Physical Form: White crystalline powder
Typical Uses: Over-the-counter treatment for motion sickness, nausea, and dizziness
Eye Contact Risks: May cause irritation, redness, or discomfort consistent with powder exposure
Skin Risk: Possible mild irritation on prolonged or repeated exposure
Inhalation Hazard: Breathing dust may irritate respiratory system
Ingestion Hazard: Overdose can bring on drowsiness, agitation, confusion, tremors, or seizures
Chronic Exposure: Habitual misuse or dosages above recommended levels may affect central nervous system
Main Ingredient: Dimenhydrinate (percentage often ranges 50 mg per tablet)
Other Ingredients: Tablet forms may include stabilizers, starch, magnesium stearate, microcrystalline cellulose, povidone, lactose, coloring agents, and sugars
Active Component: Diphenhydramine (main active moiety after dissociation in the body)
Eye Contact: Immediately rinse with plenty of water, remove contact lenses if present, and continue flushing
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing and launder before reuse
Inhalation: Move to fresh air, support breathing if symptoms show up
Ingestion: Seek medical assistance if larger-than-recommended amounts are swallowed; induced vomiting is not advised unless prescribed by medical personnel
Symptoms Worth Checking: Drowsiness, elevated heart rate, hallucinations, dry mouth, blurry vision, and urinary retention; hospital attention for severe symptoms necessary
Extinguishing Methods: Use water spray, carbon dioxide, dry chemical, or foam extinguishers
Fire Hazards: Combustible dust may form explosive mixtures with air under certain conditions; avoid creating airborne dust during spill or fire response
Personal Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Hazardous Combustion Products: Decomposition may produce toxic fumes of nitrogen oxides and carbon oxides
Spill Control: Sweep up to avoid raising dust, collect material in suitable container for disposal
Personal Caution: Wear gloves, mask, and eye protection during cleanup
Environmental Protection: Prevent entry into drains, surface waters, or soil
Ventilation: Keep area ventilated to disperse dust and vapor
Safe Handling: Handle in areas with good ventilation, avoid creating dust clouds, keep containers tightly closed
Storage: Store in cool, dry, well-ventilated locations away from incompatible materials such as oxidizers
Labeling: Make sure containers are clearly labeled to avoid accidental misuse or mixing
Ingestion Avoidance: Do not eat, drink, or smoke while handling bulk material
Respiratory Protection: NIOSH-approved masks recommended for handling powders in bulk; not needed for typical tablet use
Eye Protection: Use goggles if handling large quantities or creating dust
Skin Protection: Wear gloves to avoid repeat or prolonged skin contact; standard lab coats or uniforms offer reasonable barrier
Workplace Controls: Local exhaust ventilation diminishes airborne exposure; closed system transfer methods reduce risk for bulk handlers
Physical State: Solid, white crystalline powder or pressed tablet
Melting Point: Typically in the range of 130–140 °C
Odor: Odorless
Solubility: Slightly soluble in water, better in alcohol or acetone
Vapor Pressure: Negligible at room temperature
Chemical Stability: Stable under standard temperatures and pressures if stored properly
Conditions to Avoid: Excessive humidity, heat, sunlight, or open flame
Material Incompatibilities: Strong oxidizing agents may break down the molecule
Hazardous Decomposition: Heated to decomposition, may emit irritating or toxic fumes
Acute Toxicity: Overdose through ingestion often leads to anticholinergic effects—drowsiness, hallucinations, coordination loss; young children sensitive to even minor overdoses
Chronic Effects: Prolonged use brings tolerance, diminished efficacy, and may promote physical dependence in some
Routes of Exposure: Swallowing is main concern in non-manufacturing context; industrial users risk inhaling or absorbing via skin
Carcinogenicity: Not classified as carcinogen by typical regulatory agencies
Aquatic Toxicity: Data on environmental persistence limited; high doses theoretically could impact fish and invertebrates, but in-use concentrations are unlikely to present ecological risk
Persistence and Degradability: Like many organics, slow biodegradation expected in natural systems
Bioaccumulative Potential: Not much evidence for significant bioaccumulation
Best Practices: Avoid large disposals to water bodies or soil to prevent potential downstream effects
Disposal Methods: Send expired or unwanted material for incineration or approved drug take-back programs; never flush bulk material down household drains
Local Regulations: Observe regional, national, and institutional rules for pharmaceutical waste to safeguard water supplies and landfills
Packaging Disposal: Empty bottles, blister packs, and packaging should go with standard municipal waste unless contaminated by spills
Regulatory Status: Common ground and air freight considers dimenhydrinate non-hazardous in forms approved for consumer sale
Transport Labels: No specific hazardous goods markings required for regular commercial shipping; bulk chemicals may require different classification
Advice for Shippers: Protect tablets and powders from moisture and heat during transit
FDA Status: Sold as over-the-counter drug in the United States and many other countries for antiemetic use
Workplace Controls: OSHA guidelines require education and PPE for high-volume handlers in manufacturing environments
Restrictions: Prescription or sale restrictions for pediatric use in several jurisdictions due to heightened risk of toxicity
Label Warnings: Drowsiness, machinery operation risk, age-based contraindications are required on all packaging
