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Benadryl (Diphenhydramine)

Prescription medicineOnly Available By Prescription

Top Generic choice

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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.


Benadryl is an antihistamine medication that provides relief from allergy symptoms like sinus and throat irritation, sneezing, itchy skin, and irritated eyes. Benadryl is a common season allergy medication, but it can also be used to treat hives and itchy skin that comes with it. Your Benadryl dosage will depend on what type of allergic reaction you are treating and which allergy symptoms you need to address. It is important to not exceed dosage regulations because it is possible to build up a tolerance to Diphenhydramine and have Benadryl work less effectively for you.

You can buy Benadryl at your local pharmacy, and your best price on it will be when you order medication online from Canada Drugs Direct.


The standard Benadryl dosage is one capsule taken once a day with or without food. Your Benadryl dosage may be higher depending on your doctor's advice.


The active ingredient in Benadryl is Diphenhydramine.


Tell your doctor if you have any history of breathing problems like asthma or emphysema, glaucoma or other eye pressure conditions, heart problems, high blood pressure, liver disease, seizures, stomach or intestine problems like ulcers or blockage), hyperthyroidism (overactive thyroid), or difficulty urinating due to enlarged prostate before beginning on Benadryl.

Older adults may be more susceptible to Benadryl side effects.

Medication may interfere with certain laboratory tests and lead to false test results.

Be aware of product expiry date shown on packaging.


There is the possibility of drug interaction risks between Benadryl and other Rx medications, including antihistamines applied to the skin, opioid pain or cough relievers (like codeine or hydrocodone), drugs for sleep or anxiety like alprazolam, lorazepam, or zolpidem, muscle relaxants like carisoprodol or cyclobenzaprine, or other antihistamines like cetirizine or chlorpheniramine.

Inform your doctor of all medications you are currently taking before getting a prescription and proceeding to buy Benadryl.

Side Effects

Benadryl side effects are uncommon, but some users may experience drowsiness, dizziness, constipation, stomach upset, blurred vision, or dry mouth, nose or throat. If Benadryl side effects are seen or experienced, discontinue use and schedule to meet with your doctor again to discuss other allergy treatment options.

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.

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