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Ranitidine Dosing

Ranitidine Dosing for Pathological Hypersecretory Conditions
The dose of ranitidine used for treating pathological hypersecretory conditions (such as Zollinger-Ellison syndrome) is ranitidine 150 mg twice daily. If needed, the dose may be increased or may be given more frequently for people with these conditions.
 

Ranitidine Dosage Information for Children and Babies

Ranitidine is approved for use in children and babies as young as one month old. The dosing of ranitidine for children and babies is based on their weight.
 
Ranitidine Dosing for Ulcers
For the treatment of stomach ulcers or duodenal ulcers in children or babies, the ranitidine dose is 2 mg to 4 mg per kg (a little less than 1 mg to 2 mg per pound) twice daily. The total amount per day should not exceed 300 mg (this is only an issue with larger children). For preventing ulcers from coming back once they are healed, the ranitidine dose is 2 mg to 4 mg per kg (a little less than 1 mg to 2 mg per pound) once a day (no more than 150 mg per day).
 
Ranitidine Dosing for GERD or Erosive Esophagitis
For treating GERD or erosive esophagitis in children or babies, the ranitidine dose is 5 mg to 10 mg per kg (a little less than 2.5 mg to 5 mg per pound) total per day. This is usually split up into two doses per day.
 
(Click Zantac for Babies for more information on using ranitidine in young children.)
 

General Ranitidine Dosage Information

Some considerations for people taking ranitidine include the following:
 
  • Ranitidine comes in tablet form. Depending on the condition, ranitidine is usually taken by mouth one to four times a day.
     
  • A peppermint-flavored ranitidine syrup is available only with a prescription.
     
  • Ranitidine also comes in an EFFERdose® tablet form that has a light citrus taste. The EFFERdose tablets are meant to be dissolved in water before being taken. These are especially effective for use in children; however, Zantac EFFERdose tablets are available only with a prescription.
     
  • Zantac EFFERdose tablets should never be chewed, swallowed whole, or dissolved on the tongue. Instead, EFFERdose tablets must be dissolved in a certain amount of water before they are taken. Zantac 25 EFFERdose tablets should be dissolved in at least one teaspoon of water. Zantac 150 EFFERdose tablets should be dissolved in 6 to 8 ounces (3/4 to 1 cup) of water.
     
  • You may take ranitidine with or without food. If you are using over-the-counter ranitidine to prevent heartburn, you should take it 30 to 60 minutes before eating or drinking foods that cause heartburn (up to twice a day).
     
  • Take ranitidine at the same time(s) each day to maintain an even level of the drug in your blood. If you take ranitidine just once a day, it is usually best to take it after your evening meal or before bedtime.
     
  • For ranitidine to work properly, you must take it as prescribed. Ranitidine will not work if you stop taking it.
     
  • People who have poor kidney function (including kidney failure or renal failure) may need to take smaller doses of ranitidine than other people. If you have kidney problems, ask your healthcare provider about the dose of ranitidine that's best for you.
     
  • If you are unsure about anything related to ranitidine or your ranitidine dosage, please talk to your healthcare provider or pharmacist.
     

Ranitidine HCl

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