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OTC · No prescriptionGASTRO INTESTINAL

Zynol 300 mg Tablet

Ranitidine (300mg)

₹11MRP ₹12In stock
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Delivery across India. Free above ₹999; ₹49 from ₹499, ₹99 below. Chennai express delivery is chargeable.

Zynol 300 mg Tablet is used for management of Peptic ulcer disease Treatment of Gastroesophageal reflux disease (Acid reflux) Control Acidity.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated October 2026

Licensed pharmacyPharmacist-verified orderDelivered across India

Key details

Salt: Ranitidine (300mg)
Available variants: tablet 300 mg 10`S
Best price: ₹11 (₹1.12 per tablet)
MRP: ₹12
Prescription: Not required
Manufacturer: COMMON PRODUCTS

Ordering notes

Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy

Composition of Zynol 300 mg Tablet

Zynol 300 mg Tablet contains Ranitidine (300mg). It belongs to the Antacid / H2 blocker class of medicines.

Uses of Zynol 300 mg Tablet

Management of Peptic ulcer disease Treatment of Gastroesophageal reflux disease (Acid reflux) Control Acidity

Key benefits

  • In Management of Peptic ulcer disease Zynol 300mg Tablet helps treat and prevent peptic ulcers
  • including duodenal ulcers
  • benign gastric ulcers
  • and post-operative ulcers
  • and is used for maintenance therapy to prevent recurrence. It is also used to prevent re-bleeding in patients with a history of bleeding peptic ulcers. It lowers stomach acid levels and allows ulcerated tissue in the stomach or intestine to heal effectively
  • reducing irritation and pain. This supports recovery and helps prevent ulcer recurrence when taken as directed by your doctor. In Treatment of Gastroesophageal reflux disease (Acid reflux) Zynol 300mg Tablet is used in the treatment and long-term management of gastro-oesophageal reflux disease
  • including cases with reflux esophagitis
  • to relieve symptoms and promote healing of the esophageal lining. It reduces excess acid production in the stomach
  • which helps prevent acid from flowing back into the food pipe. This eases heartburn
  • acidity
  • and discomfort after meals and improves overall comfort when used regularly as prescribed. In Control Acidity Zynol 300mg Tablet helps control conditions associated with excessive stomach acid production
  • including acid hypersecretory states such as Zollinger–Ellison syndrome
  • NSAID-associated gastric and duodenal injury
  • and stress-related mucosal damage in seriously ill patients. It is also used in high-risk situations to reduce gastric acidity for the prevention of acid aspiration during anesthesia. It works by reducing acid levels and protecting the stomach lining
  • reducing irritation and helping prevent acid-related complications. Show More

How Zynol 300 mg Tablet works

Zynol 300mg Tablet works by blocking histamine H2 receptors on the acid-producing cells of the stomach. This reduces both basal and stimulated secretion of gastric acid, lowering the volume and acidity of stomach contents. By decreasing acid production, ranitidine helps relieve acid-related symptoms and allows irritated or ulcerated areas of the stomach and esophagus to heal.

How to take Zynol 300 mg Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Zynol 300mg Tablet may be taken with or without food.

Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.

Missed dose and overdose

If you miss a dose

If you miss a dose of Zynol 300mg Tablet, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule.

If you take too much

An overdose of this medicine can cause severe loose motions or constipation and disturb the body's salt balance. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.

Side effects of Zynol 300 mg Tablet

Most side effects of Zynol are mild and settle as the body adjusts. Reported side effects include:

  • Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.

Safety advice for Zynol 300 mg Tablet

PregnancyConsult doctor
BreastfeedingBreast feeding CONSULT YOUR DOCTOR
AlcoholUse with caution
DrivingDriving CONSULT YOUR DOCTOR
KidneyKidney CAUTION
LiverLiver CAUTION
Habit formingNo

Warnings and precautions

This is for short-term relief. See a doctor if you need it most days for more than a couple of weeks. Seek urgent care for chest pain that spreads to the arm or jaw, comes with sweating or breathlessness — do not assume it is acidity. Antacids interfere with the absorption of many other medicines. Take them at least two hours apart from anything else.

Do not take Zynol if

Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Magnesium-containing antacids are avoided in significant kidney disease.

Interactions with other medicines

Reduces the absorption of thyroid tablets, iron, and several antibiotics — separate them by at least two hours.

How to store Zynol 300 mg Tablet

Store at room temperature (below 25°C), protected from light and moisture. Keep out of reach of children.

Expert advice for Zynol 300 mg Tablet

If you are also taking other medications to treat acidity (e.g., antacid), take them 2 hours before or after taking Zynol 300mg Tablet. Avoid taking soft drinks, citrus fruits like orange and lemon, which can irritate the stomach and increase acid secretion. Inform your doctor if you do not feel better after taking Zynol 300mg Tablet for 2 weeks as you may be suffering from some other problems. Inform your doctor if you have ever been diagnosed with kidney disease, as the dose of your medicine may need to be adjusted. Do not stop taking the medication without talking to your doctor.

Manufacturer and class

Manufacturer:
COMMON PRODUCTS
Therapeutic class:
GASTRO INTESTINAL
Drug class:
Antacid / H2 blocker
Chemical class:
Heterocyclic amines

Substitutes for Zynol 300 mg Tablet

Medicines with the same active ingredient (Ranitidine (300mg)). Ask your doctor or pharmacist before switching brands.

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Aciloc 300 TabletCADILA PHARMAtablet · 20`S₹59421% more
Rantac OD 300JB CHEMICALScontrolled-delivery tablet · 10`S₹78592% more
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Zynol 300 mg Tablet FAQs

What is Zynol 300 mg Tablet used for?
Zynol 300 mg Tablet is commonly used for Management of Peptic ulcer disease Treatment of Gastroesophageal reflux disease (Acid reflux) Control Acidity. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Zynol 300 mg Tablet?
Zynol 300 mg Tablet contains Ranitidine (300mg). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Zynol 300 mg Tablet?
Take this medicine in the dose and duration as advised by your doctor. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Zynol 300 mg Tablet work?
Zynol 300mg Tablet works by blocking histamine H2 receptors on the acid-producing cells of the stomach.
Is Zynol 300 mg Tablet a prescription medicine?
No. Zynol 300 mg Tablet is available over the counter (OTC), no prescription is required. However, it is always safer to consult a doctor or pharmacist before use.
What are the common side effects of Zynol 300 mg Tablet?
The side effects reported most often with Zynol are Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Zynol 300 mg Tablet be taken during pregnancy?
Consult doctor Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Zynol.
Can I drink alcohol while taking Zynol 300 mg Tablet?
Use with caution
What if I miss a dose of Zynol 300 mg Tablet?
If you miss a dose of Zynol 300mg Tablet, take it as soon as possible.
Is Zynol 300 mg Tablet habit forming?
No. Zynol 300 mg Tablet is not known to be habit forming when taken as prescribed.
How much does Zynol 300 mg Tablet cost on PingMeDoc Pharmacy?
Zynol 300 mg Tablet starts at ₹11 (MRP ₹12) on PingMeDoc Pharmacy. Available in tablet 300 mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Zynol 300 mg Tablet?
Zynol 300 mg Tablet is manufactured by COMMON PRODUCTS. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Zynol 300 mg Tablet delivered?
Zynol 300 mg Tablet is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.

Zynol 300 mg Tablet, Quick facts

Salt
Ranitidine (300mg)
Form
tablet
Best price
₹11 (₹1.12 per tablet)
MRP
₹12
Prescription
Not required (OTC)
Brand
COMMON PRODUCTS
Manufacturer
COMMON PRODUCTS
Therapeutic class
GASTRO INTESTINAL
Drug class
Antacid / H2 blocker
Chemical class
Heterocyclic amines
Action class
Histamine Type-2 Receptor Antagonists (H2 Blockers)
Habit forming
No
Variants
tablet 300 mg 10`S
Delivery
Standard across India

References

The information on Zynol 300 mg Tablet is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.

  1. manufacturer labeling/pack insert
  2. CDSCO/Indian drug labeling norms, established medical literature
  3. Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
  4. National List of Essential Medicines (NLEM) 2022, Government of India.
  5. Manufacturer's package insert / prescribing information for Zynol 300 mg Tablet.
  6. World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.

Next steps

Safety disclaimer

Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.