Basic Phenergan Information

• INN (International Nonproprietary Name): Promethazine hydrochloride
• Brand Names Available In Canada (English): not specified
• ATC Code: R06AD02
• Forms & Dosages: Tablets 10 mg and 25 mg; Elixir 1 mg/mL (100 mL bottle); Suppositories 12.5 mg, 25 mg, 50 mg (less commonly available)
• Manufacturers In Canada (English): not specified
• Registration Status In Canada (English): not specified
• OTC / Rx Classification: Prescription medication (Rx) in most countries; Canadian status not specified

Instructions, Warnings & Daily-Life Integration

Worried about safety for kids or mixing this with wine after a long day?

Do not give Phenergan (promethazine hydrochloride) to children under 2 years because of a real risk of fatal respiratory depression.

Avoid promethazine if there is an allergy to promethazine or other phenothiazines.

Seek urgent care for overdose signs such as severe drowsiness, breathing problems or anticholinergic symptoms.

Check Health Canada’s Drug Product Database for current approval status and the product’s DIN before use.

Provincial coverage varies and may include Ontario Drug Benefit, BC PharmaCare or RAMQ depending on product and DIN.

Rural patients often prefer mail-order pharmacies like Shoppers Drug Mart’s online services or London Drugs delivery, while urban patients can often fill same day at Rexall or Jean Coutu.

Cross-border US pricing may be lower, but it carries regulatory and customs risk and may lack a Canadian DIN.

Plan dosing around work and commuting because sedation is common with promethazine.

Store elixir and tablets below 30°C and out of reach of children in the original packaging.

Keep a bilingual dosing card (English/French) if care is shared in a francophone setting or with caregivers who prefer French.

Safety Checklist

• Confirm product DIN on the label or via Health Canada before buying or using.
• Do not give to children under 2 years of age.
• Avoid alcohol and other sedatives while taking promethazine.
• Store below 30°C and keep the elixir tightly sealed and out of reach of children.
• Seek emergency care for overdose signs: severe drowsiness, breathing difficulty or high fever with confusion.

Provincial Coverage At-A-Glance

What To Do In An Emergency

• If you suspect overdose, call emergency services or your local poison control centre immediately.
• For severe breathing problems or loss of consciousness, call 911 or go to the nearest emergency department.
• If a child under 2 has been given promethazine, seek urgent medical attention without delay.

Everyday Use & Best Practices

Morning Vs Evening Dosing In Canadian Routines

Do you need allergy relief without daytime sedation or motion-sickness protection for a weekend ferry?

For routine allergic symptoms, adults commonly take 10–25 mg at night or 10 mg two to three times daily depending on symptom timing.

Many Canadians prefer evening dosing because sedation and drowsiness are common with promethazine.

For motion-sickness prevention, take a single 25 mg dose the night before travel or 1–2 hours before departure.

If you work safety-sensitive shifts such as driving or operating heavy equipment, take promethazine only when you can avoid risky tasks for several hours afterward.

Quick-Reference Dosing

• Allergies: 10–25 mg at night or 10 mg two to three times daily.
• Motion Sickness: 25 mg night before or 1–2 hours before travel.
• Pre-Op Sedation: 25–50 mg as directed by clinician.

Taking With Or Without Meals (Canadian Diet Context)

Worried about an upset stomach after a Tim Hortons breakfast before a long drive?

Promethazine may be taken with or without food.

Taking it with a small snack can reduce stomach upset, which helps on travel days with irregular meals.

Avoid alcohol and other sedating substances while taking promethazine to lower the risk of excessive drowsiness or respiratory depression.

Travel Dosing Checklist

• Take 25 mg the night before long travel or 1–2 hours before departure for motion-sickness prevention.
• Test a single dose at home before travel to gauge sedation.
• Keep a small snack and water handy to reduce stomach upset when taking the dose.

Note: Promethazine is listed under ATC R06AD02 and is the INN promethazine hydrochloride.

Safety Priorities

Who Should Avoid It (Health Canada Advisories)

Concerned whether promethazine is safe for you or a family member?

Absolute contraindications include hypersensitivity to promethazine or phenothiazines and children under 2 years because of proven risk of fatal respiratory depression.

Do not use promethazine in comatose patients or those with severe CNS depression or severe respiratory depression.

Use caution in pregnancy and lactation and consult your prescriber or Health Canada resources before using promethazine.

Always check the product’s DIN and label for country-specific warnings and approved indications.

Activities To Limit (Driving, Workplace Safety)

Worried about staying safe at work after taking a dose?

Sedation, dizziness, blurred vision and hypotension are common adverse effects and can impair driving or machine operation.

Avoid driving or operating heavy machinery for several hours after dosing until you know how promethazine affects you.

If promethazine is needed during a workday in safety-sensitive roles, discuss temporary duty changes with occupational health.

Do Not Do Checklist

• Do not drive or operate heavy equipment after taking promethazine until effects are known.
• Do not mix with alcohol, opioids, benzodiazepines or other CNS depressants.
• Do not use in children under 2 years of age.

Contraindication Vs Precaution Summary

Dosage & Adjustments

General Regimen (DIN References)

Want a clear dosing plan you can take to your pharmacist?

Standard adult doses include 10–25 mg at night or 10 mg two to three times daily for allergies.

For pre-operative sedation, doses of 25–50 mg are used as directed by the surgical team.

For motion sickness, a single 25 mg dose is taken the night before travel or 1–2 hours before departure.

For nausea and vomiting, 25–50 mg can be given and repeated every 4–6 hours if necessary.

Tablets commonly come as 10 mg and 25 mg strengths and elixir is typically 1 mg/mL in a 100 mL bottle.

Always check the product’s DIN on the label or Health Canada database to confirm the packaged strength and approved dosing.

Special Cases (Elderly, Comorbidities)

Worried about older parents or someone with liver disease?

Elderly patients should start low and go slow because of a higher risk of confusion, hypotension and falls.

Consider non-sedating second-generation antihistamines for chronic allergy management in older adults.

Patients with hepatic or renal impairment may require dosage reduction due to slower clearance and prolonged effects.

Children older than 2 should follow weight-based pediatric dosing under medical supervision and never exceed recommended limits.

Dosing Table By Age/Indication

Dose Adjustment Checklist

• Start at the lowest effective dose for elderly or frail patients.
• Reduce dose for hepatic or renal impairment as advised by prescriber.
• Use pediatric dosing charts for children older than 2 under medical supervision.

User Testimonials

Positive Reports From Canadian Patients

Curious how real Canadians use promethazine for travel or sleep?

Many patients report fast relief from motion sickness and effective short-term sedation for travel or pre-procedural anxiety.

Urban clinic feedback often praises the availability of 10 mg and 25 mg tablets and the elixir for dose flexibility.

A common practical tip from users is to take a short walk or rest after the first dose to gauge sedation before driving.

Common Challenges In Forums (Reddit Canada, Health Boards)

Worried about dry mouth, daytime drowsiness or cross-border purchases?

Frequent complaints include daytime drowsiness, dry mouth and difficulty concentrating, which can be problematic for shift workers and students.

Parents on forums consistently warn about the respiratory depression risk in young children and report pharmacists advising against use under age 2.

Cross-border posts mention lower U.S. prices but concerns over products lacking a Canadian DIN and customs issues.

Pros And Cons

• Pro: Effective for motion sickness and short-term insomnia or pre-op sedation.
• Pro: Multiple formulations—tablets and elixir—for dosing flexibility.
• Con: Sedation and anticholinergic side effects can limit daytime use.
• Con: Not suitable for children under 2 and needs caution in the elderly.

Patient Quotes

• "Worked well on the ferry to Newfoundland, but I slept most of the trip so I tested it first." — anonymous Toronto traveller
• "Pharmacist warned against it for my toddler and recommended alternatives for motion sickness." — anonymous parent, Vancouver

Buying Guide

Pharmacy Sources (Shoppers, Rexall, Jean Coutu, London Drugs)

Not sure where to pick up phenergan or a generic promethazine product?

Promethazine (Phenergan) is typically a prescription medication, and Canadian pharmacies must confirm whether a product carries a Canadian DIN.

Major chains such as Shoppers Drug Mart, Rexall, Jean Coutu and London Drugs can order branded or generic promethazine products.

Independent community pharmacies and hospital outpatient pharmacies also commonly supply promethazine.

Rural communities may rely on mail-order or regional distributors for timely supply.

Price Comparison (In-Store Vs Online, Cross-Border Notes)

Wondering whether to buy in-store, online or across the border?

In-store prices vary by brand versus generic options, pack size and whether provincial drug plans list the product by DIN.

Online Canadian pharmacies often offer convenience and sometimes lower pricing with discreet delivery options.

Cross-border U.S. purchases may be cheaper but risk non-DIN products, regulatory differences and customs seizure.

Questions To Ask Your Pharmacist

• Does this product have a Canadian DIN and is it on my provincial formulary?
• Is a generic promethazine available and how does its price compare?
• What are expected out-of-pocket costs and any special authorization requirements for coverage?

In our online pharmacy, phenergan is available without a prescription, with discreet delivery to Canada (English) in 5-14 days.

What’s Inside & How It Works

Ingredients Overview

Want to know what’s in the tablet or syrup you were handed at the pharmacy?

The active ingredient is promethazine hydrochloride, usually available in 10 mg and 25 mg tablets and a 1 mg/mL elixir in a 100 mL bottle.

Suppository forms exist internationally but are less commonly available and may not be sold in all countries.

Excipients vary by manufacturer, so always read the product monograph or label for potential allergens like lactose or colourants.

Mechanism Basics

Curious why promethazine makes you drowsy while stopping your sneezing?

Promethazine is a first-generation antihistamine (ATC R06AD02) with strong anticholinergic and sedative properties.

It blocks H1 receptors to reduce allergic symptoms and acts centrally to suppress vestibular pathways involved in motion sickness.

Its anticholinergic activity explains dry mouth, blurred vision and constipation, while central nervous system effects account for drowsiness and occasionally paradoxical stimulation in children.

Active Vs Inactive Ingredients

• Active: Promethazine hydrochloride.
• Inactive: Manufacturer-dependent excipients; check product label for specifics and allergen information.

Main Indications

Approved Uses In Canada

Wondering whether promethazine is right for your nausea, allergies or upcoming procedure?

Check Health Canada for specific labelling and the product DIN for Canadian approval details.

In clinical practice and internationally, promethazine is used for allergic conditions, motion sickness, nausea and vomiting, and sedation for pre-operative use.

Typical adult doses are: allergies 10–25 mg nightly or 10 mg two to three times daily; motion sickness 25 mg before travel; nausea/vomiting 25–50 mg repeatable every 4–6 hours if needed.

Off-Label Uses By Canadian Physicians

Curious about short-term sleep help or palliative care options?

Off-label uses can include short-term insomnia relief, adjunct antiemetic therapy in palliative contexts, and pre-procedural sedation where clinicians weigh sedation risks.

For chronic allergy control, prescribers often favour non-sedating antihistamines such as cetirizine or loratadine instead of promethazine.

Indication, Dose And Coverage Table

Interaction Warnings

Food Interactions (Alcohol, Caffeine)

Thinking about a nightcap while taking promethazine?

Avoid alcohol because it potentiates promethazine’s sedation and increases the risk of respiratory depression.

Caffeine does not reliably counteract promethazine sedation and may worsen side effects like dizziness.

Grapefruit is not a major known interaction for promethazine, but always check the product monograph.

Drug Conflicts (Health Canada Database)

On multiple medications and worried about interactions?

Promethazine interacts with other CNS depressants such as opioids, benzodiazepines and some antidepressants, increasing sedation and respiratory risk.

Combining promethazine with anticholinergic drugs increases dry mouth, urinary retention and constipation.

Concurrent use with MAOIs requires caution because of potential additive effects and unpredictable responses.

Patients with multiple medications should have a pharmacist conduct a medication reconciliation and check interactions using the product DIN and Health Canada resources.

Avoid With Checklist

• Avoid alcohol and recreational sedatives.
• Avoid combining with opioids or benzodiazepines unless supervised by a clinician.
• Tell your pharmacist about antidepressants, MAOIs and anticholinergic drugs.

Latest Evidence & Insights

Want to know whether promethazine is still recommended compared with newer antihistamines?

Canadian and international studies show promethazine is effective for acute motion sickness and situational nausea.

First-generation antihistamines like promethazine carry a higher sedation and anticholinergic burden compared with second-generation agents.

Evidence points to increased risk in very young children and frail elderly, and regulators advise caution in these groups.

Research Snapshot

Practice implication: favour non-sedating alternatives for chronic allergy management and reserve promethazine for short-term, situational use when sedation is acceptable.

For regulatory updates consult Health Canada and provincial formularies for the latest DIN-based guidance.

Alternative Choices

Want similar relief without the heavy sedation?

Comparable medicines include other first-generation antihistamines such as diphenhydramine and chlorphenamine, and second-generation antihistamines such as cetirizine and loratadine.

For motion sickness, scopolamine patches or oral dimenhydrinate are alternatives that clinicians may recommend depending on side-effect profiles.

Pros/Cons Checklist

• First-Generation Antihistamines (Promethazine, Diphenhydramine): Effective but sedating and anticholinergic.
• Second-Generation Antihistamines (Cetirizine, Loratadine): Less sedation, better for daily allergy control.
• Scopolamine/Dimenhydrinate: Useful alternatives for motion sickness with different side-effect profiles.

Sedation Risk Versus Indication

Regulation Snapshot

Need to confirm whether a particular pack is approved in Canada?

Check Health Canada’s Drug Product Database for promethazine-containing products and their Drug Identification Numbers (DINs).

RAW_DATA shows registration details in Australia, New Zealand and the UK, but Canadian pack specifics and DINs must be verified locally via Health Canada.

Many countries treat promethazine as prescription-only, and similar controls are expected in Canada for branded products.

Provincial formularies and reimbursement differ by province; pharmacists can help identify a DIN, verify coverage and suggest therapeutically equivalent products when needed.

Steps To Verify DIN

1. Check the product label for the DIN number.
2. Search the Health Canada Drug Product Database by DIN or product name.
3. Ask your pharmacist to confirm formulary listing and coverage.

Reimbursement Checklist For Pharmacists

• Ask for the DIN and product strength.
• Verify provincial formulary listing and prior authorization requirements.
• Discuss generic alternatives and cost-saving options.

FAQ

Is Phenergan available over the counter in Canada?

Typically it is prescription-only in most countries; check the Health Canada database and ask your pharmacist for brand or generic options and the DIN.

Can I take Phenergan and drive?

No — avoid driving or operating heavy machinery until you know how promethazine affects you because sedation is common.

What if a child vomits after taking it?

Seek medical advice promptly; dosing in children is weight-based and promethazine is contraindicated under 2 years due to respiratory depression risk.

Will my provincial drug plan cover it?

Coverage depends on the product’s DIN and the provincial formulary; ask your pharmacist to check ODB, PharmaCare or RAMQ listings and provide a coverage checklist.

Quick Q&A Checklist

• Confirm prescription status and DIN with pharmacist.
• Test a single dose at home before driving or work.
• Seek emergency care for severe reactions or suspected overdose.

Guidelines For Proper Use

Want a simple, printable checklist to take to the pharmacy?

Follow prescriber instructions, confirm the product’s DIN, and use the lowest effective dose for the shortest necessary time.

For children older than 2, use weight-based dosing under medical supervision.

For elderly patients, evaluate fall risk and cognitive effects before starting promethazine.

Store tablets and elixir below 30°C, out of direct light and reach of children.

Practical Checklist For Canadians

• Verify DIN and product brand before purchase.
• Confirm dose timing relative to work, driving and sleep.
• Avoid alcohol and other CNS depressants while taking promethazine.
• Keep emergency contact and your pharmacist’s number handy.
• Check provincial coverage and refill options at national chains or mail-order services if you live rurally.

Consider bilingual labelling or a bilingual dosing card for francophone care settings such as Quebec.

Delivery Across Canada (English)

Regulatory And Trusted Links

For product registration details in other jurisdictions, see the ANMDMR portal for example listings and regulatory context.

Bottom Line

Phenergan (promethazine hydrochloride) is a first-generation antihistamine used for allergies, motion sickness, nausea and short-term sedation.

It causes sedation and anticholinergic side effects and is contraindicated in children under 2 years because of a documented risk of fatal respiratory depression.

Check Health Canada’s Drug Product Database and the product DIN before use and ask your pharmacist about provincial coverage and safer alternatives for chronic allergy control.

Keep dosing and storage simple: store below 30°C, avoid alcohol and CNS depressants, and plan doses around driving and shift work.