| Brand Name | Zantac |
| Generic Name | Ranitidine |
| Drug Class | H2 antagonists |
| Availability | Prescription only |
| Manufacturer | Pfizer |
| Indications | Zantac belongs to a group of drugs called histamine-2 blockers. It works by reducing the amount of acid your stomach produces. |
| Type | Tablet |
| Doses | 150mg |
| Route | Oral |
| Side Effects | Stomach pain, loss of appetite; dark urine, jaundice |
| Interactions | Many drugs can interact with ranitidine. This includes prescription and over-the-counter medicines, vitamins, and herbal products. |
| Overdose | Overdose symptoms may include lack of coordination, feeling light-headed, or fainting. |
| Missed Dose | Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time. |
| Contraindications | fever, chills, cough with mucus, chest pain, feeling short of breath; fast or slow heart rate;easy bruising or bleeding; orproblems with your skin or hair. |
| Alternatives | Protonix |
| Co-Pay Assistance Program | Available |
| Patient Assistance Program | Available |
Dr. Bharat Pothuri is a Board-Certified Gastroenterologist and Hepatologist. With extensive experience in digestive health, he specializes in advanced endoscopic procedures, chronic GI disorder management, and preventive care. Dr. Pothuri is dedicated to providing expert, patient-focused insights to help improve gut health and overall well-being.
If you are taking Zantac for gastric reflux you should notice improvement within 1 to 2 weeks.
Some forms of Zantac (ranitidine) were recalled due to concerns about NDMA contamination, a potential carcinogen. However, newer formulations like Zantac 360° (famotidine) are considered safe. Always check with your doctor before use.
Zantac 360° (famotidine) usually starts working within 30 to 60 minutes. It provides relief for up to 12 hours, making it effective for preventing and treating heartburn.
Zantac (famotidine) may interact with certain medications, including antifungals, blood thinners, and certain anti-seizure drugs. Always inform your doctor about all the medications you are taking before using Zantac.
