Canada Drugs Direct

Visiting from Canada?

Want to save up to 80% on your medications? Signup below to be notified if we open a Canadian Online Pharmacy.

I agree to receive email updates from Canada Drugs Direct

Looking for Call us toll free 1-800-500-2897

Buckley's Mucus and Phlegm Relief (Guaifenesin / Menthol)


Top brand choice

Strength Pack Size Qty
Pack Size
Pack Size

You'll have option to make 4 interest-free payments by credit card once your order is confirmed using

What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. The must be a member of CIPA (Canadian International Pharmacy Association).
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team
What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


Buckley's Mucus and Phlegm Relief is an over-the-counter medication designed to alleviate respiratory congestion caused by excessive mucus and phlegm. This product contains a combination of guaifenesin and menthol as active ingredients, addressing the symptoms associated with the overproduction of mucus.

It is indicated for conditions such as the common cold, bronchitis, and respiratory infections. Guaifenesin functions as an expectorant, aiding in the thinning and loosening of mucus in the airways, facilitating easier removal by coughing.

The menthol component provides soothing relief for throat irritation.


Take Buckley’s Mucus and Phlegm Relief as directed by your healthcare provider. If using for longer than seven days or symptoms worsen, make an appointment with your doctor.

The recommended dosage for adults and individuals over 12 is 2-3 teaspoons (10-15 mL) every 6 hours, as needed.


The active ingredients in Buckley’s Mucus and Phlegm Relief are menthol and guaifenesin.


Common drug-drug interactions may include:

  • Alcohol
  • Alprazolam
  • Baclofen
  • Carisoprodol
  • Chlorpheniramine
  • Clonazepam
  • Codeine
  • Cyclobenzaprine
  • Dextromethorphan
  • Diazepam
  • Diphenhydramine
  • Eszopiclone
  • Guaifenesin
  • Hydroxyzine
  • Lorazepam
  • Metaxalone
  • Methocarbamol
  • Midazolam
  • Orphenadrine
  • Phenylephrine
  • Pseudoephedrine
  • Quetiapine
  • Temazepam
  • Tizanidine
  • Zolpidem


Do not use this medication if the security seals on the cap are broken.

Before starting this medication, tell your healthcare provider about any underlying medical conditions, particularly if you have a history of kidney or liver problems.

Seek medical attention if symptoms persist for more than seven days, worsen, or if you develop a rash or cough up yellow or green mucus.

It should be stored out of the reach of children, as it is intended for individuals aged 12 and older.

Side Effects

Tell your healthcare provider if you experience any of the following while taking this drug:

  • Allergic reactions
  • Diarrhea
  • Dizziness
  • Headache
  • Nausea
  • Skin rash (rare)
  • Upset stomach
  • Vomiting


Buckley’s Mucus and Phlegm [product page]. Mississauga, Ont.: Haleon; 2023.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

product-reviews Product Reviews