Zantac (Ranitidine)

Name: Zantac
Brand: Generic
SKU: 2221
Availability: InStock

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

There is no brand product of Zantac.

Generic Equivalent of Zantac

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

Type:

Product: Ranitidine (Dispensing Note)

Manufacturer: Generic

Country: Canada

Dosage: 150 mg

Qty-Price (USD):

Type:

Product: Ranitidine (In Bottle) - (Expiry Note)

Manufacturer: Generic

Country: Canada

Dosage: 150 mg

Qty-Price (USD):

Type:

Product: Ranitidine

Manufacturer: Generic

Country: Canada

Dosage: 300 mg

Qty-Price (USD):

Zantac Information

medically reviewed by Carol Hou (BSc. Pharm) on May 16, 2025.

A licensed pharmacist (Licensed Community Pharmacies Directory | College of Pharmacists of British Columbia) with over 20 years of experience in medication management, specifically medication safety, she has reviewed the information for accuracy and completeness.

Ranitidine at CanadaPharmacyOnline.com

Brand Zantac is currently unavailable (at this pharmacy).

Generic ranitidine is available in many countries worldwide, including Canada.

Generic ranitidine is sourced from manufacturers that meet applicable regulatory standards. The specific manufacturer of your dispensed medication may vary.

Important Information about Generic Ranitidine:

Generic ranitidine contains the same active ingredient as the brand-name Zantac and is required to meet the same safety, effectiveness, and quality standards. This means it is designed to work in the same way as Zantac. Studies have demonstrated bioequivalence between generic and brand-name ranitidine, meaning they have comparable absorption rates and overall effects. However, individual responses to any medication can vary. If you have any questions about using generic ranitidine, talk to your doctor or pharmacist.

For more information about generic drug approval and bioequivalence, please refer to Access to Generic Drugs in Canada | Canada.ca

Dosage:

The generic ranitidine is available as 150 mg and 300 mg oral tablets.

Your doctor will determine the appropriate dosage based on the individual needs and medical conditions.

Usage:

Zantac (ranitidine) is a medication used to treat and prevent heartburn and acid reflux. The medicine is also used to treat stomach and duodenal ulcers, gastroesophageal reflux disease (GERD), Zollinger-Ellison syndrome, and erosive esophagitis. Heartburn is a burning sensation in your chest, just behind your breastbone, that can move up toward your neck and throat. It's caused by stomach acid flowing back up into the esophagus (the tube that carries food from your mouth to your stomach). Acid reflux is the backward flow of stomach acid into the esophagus. Heartburn is a common symptom of acid reflux. GERD is a chronic form of acid reflux. It occurs when acid reflux happens frequently, causing irritation or damage to the esophagus.

Mechanism of Action:
Zantac (ranitidine) is an H2-receptor antagonist. It blocks histamine H2 receptors in the stomach. These receptors are responsible for stimulating stomach acid production. By blocking them, ranitidine reduces the amount of acid the stomach produces

Take Zantac exactly as your doctor prescribes, following the instructions in the Zantac: Package Insert / Prescribing Info | Drugs.com. Consult your doctor for personalized guidance and safe use.

The information below summarizes some, but not all, potential side effects, risks, and interactions. Before taking Zantac, it is essential to discuss all potential side effects, risks, and interactions with your doctor or pharmacist.

Side Effects:

The information below is a partial list of side effects; individual reactions can vary. Before starting Zantac, it is crucial to discuss potential side effects and risks with your doctor or pharmacist.

Common side effects – These are examples of some common side effects of Zantac, but others are possible. Contact your doctor promptly if any side effects are persistent, worsening, or concerning or if you experience any other concerning symptoms.
• Constipation
• Diarrhea
• Headache
• Nausea
• Stomach pain
• Vomiting

Serious or rare side effects – Stop taking Zantac and seek immediate medical attention right away if you experience any of the following
• Allergic reactions, including angioedema, hives, and trouble breathing
• Liver problems, including dark urine, pale stools, severe abdominal pain, and yellowing of the skin or eyes
• Neurological effects, including confusion, agitation, depression, and hallucinations
• Pneumonia, including chest pain, fever, shortness of breath, and coughing up green or yellow mucus
• Severe heart problems, including fainting, chest pain, irregular heartbeat, shortness of breath, and severe dizziness

Contraindications:

This is not an exhaustive list of contraindications. It is crucial to discuss all your medical conditions, past and present, and all medications you are taking with your doctor or pharmacist before starting Zantac.

Zantac should not be used if:
• Are allergic to ranitidine or any of the inactive ingredients in Zantac
• You have acute kidney disease
• You have liver disease

Tell your doctor about all of your medical conditions, past and present, before starting Zantac. This is crucial because certain conditions can affect whether Zantac is right for you. These conditions may include, but are not limited to:
• Impaired kidney function
• Liver problems
• Porphyria

Alcohol:
Drinking alcohol when taking Zantac can damage your stomach lining. It would be best to discuss with your doctor regarding your alcohol intake while taking Zantac medicine.

Dizziness and Drowsiness:
Zantac may cause dizziness or drowsiness. Avoid getting up too fast from a sitting or lying position. Otherwise, you may feel dizzy. Avoid driving, operating machinery, or engaging in activities that require alertness until you understand how it affects you.

Drug Interactions:

Before taking Zantac, it is essential to discuss all potential risks and interactions with your doctor or pharmacist. For complete information about potential drug interactions, consult the product monograph in Canada, https://pdf.hres.ca/dpd_pm/00041942.PDF, and discuss any concerns with your healthcare provider.

Provide your doctor with a complete list of all your medications, including prescriptions, over-the-counter (OTC) drugs, vitamins, and herbal supplements. Zantac can interact with other medicines but is not limited to procainamide, warfarin, atazanavir, delavirdine, gefitinib, glipizide, ketoconazole, and midazolam.

Pregnancy and Breastfeeding:

If you are pregnant or become pregnant, tell your doctor before using Zantac. It is unknown if ranitidine will harm an unborn baby. Pregnant women experiencing heartburn should discuss the risks and benefits of using Zantac with their doctor before taking it. If you are breastfeeding or plan to breastfeed, inform your doctor. Ranitidine is excreted in human breast milk, meaning that the medication can be transferred from the mother to the nursing infant. It is crucial to discuss the risks and benefits of using Zantac with your doctor before taking it.

Frequently Asked Questions about Zantac at Canada Pharmacy Online

Why is Zantac more affordable in Canada than in the United States?

Prescription drug prices, including Zantac, are generally lower in Canada than in the US due to a combination of factors, primarily government price regulations, differing market dynamics, and other economic considerations. In Canada, provincial and federal governments negotiate drug prices with pharmaceutical companies, which often results in lower costs compared to the US, where market forces play a more significant role. For more information, see the FAQs on Prescription Drug Importation from the Kaiser Family Foundation (KFF): https://www.kff.org/health-costs/issue-brief/faqs-on-prescription-drug-importation/

Can I cut or split a Zantac tablet?

Some ranitidine tablets are scored, meaning they have a line down the middle indicating that they can be split. However, not all Zantac tablets have a scoreline. It is recommended to always confirm with your doctor, even if the tablet is scored, to know if you can split the tablet.

How much is the shipping?

Our shipping fee is a flat rate of $10.00 per order. Our pharmacy focuses on getting you the lowest prices on high-quality products.

How do I order from your pharmacy?

Ordering from us is very simple. You can purchase online or call Customer Service at 1866.920.3784. For additional information or to learn about the ordering process, visit our How to Order page.

Is there a limit on how many Zantac tablets I am allowed to order at one time?

CanadaPharmacyOnline.com can only dispense a maximum of a three-month supply of Zantac at one time, as per your doctor's prescription.

Can I buy Zantac over the counter from you?

Yes, a lower dosage form (150 mg) of Zantac is available over the counter. A higher dosage form (300 mg) requires a valid prescription from your doctor (at this pharmacy).

Do you ship to the United States?

Yes, we do. It usually takes between 7 and 18 business days to receive your order from our pharmacy.

What is the difference between Zantac 150 mg and 300 mg?

The difference in dosage represents the amount of active ingredient(s) present in the drug.

What is the best time to take Zantac?

The best time to take Zantac and your dosage will depend on the condition you are treating. Always consult with your doctor to know how best to take ranitidine.

Can you take a Zantac on an empty stomach?

Zantac can be taken with or without food. To prevent heartburn and indigestion, take Zantac 30-60 minutes before eating food or drinking beverages that cause indigestion.

How long does it take for Zantac to take effect?

Zantac provides relief from heartburn and indigestion within an hour of taking it, and its effects last for about 12 hours; this reduces the severity and frequency of heartburn.

Blog Posts:

Did My Stomach Fall Asleep on the Job?
Gastroparesis: Dietary Tips to Reverse Your Life

Latest News:

Acid reflux impacts about 20% of American adults. What causes it? (article published on April 19, 2025)

Similar Drugs in the category of Ulcer Medication/GERD:

Cytotec Carafate Suspension Famotidine Axid Takecab

The information on this page is sourced from independent third parties contracted by CanadaPharmacyOnline. While we cannot guarantee its medical accuracy, we strongly recommend consulting a healthcare professional for personalized advice regarding medications or medical conditions.

Reviews From Real Customers