By Medically reviewed by Panel Perubatan Hello Doktor


What is Arnetin® (Ranitidine) used for?

Arnetin® is commonly used to treat the stomach, intestines symptoms and prevent them from coming back after they have healed, including ulcers, cough that doesn’t go away, stomach pain, heartburn, and difficulty swallowing. It also treats certain stomach and throat problems such as erosive esophagitis, GERD, Zollinger- Ellison syndrome. It works by decreasing the amount of acid your stomach makes.

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.


The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this medication.

What is the dose of Arnetin® (Ranitidine) for an adult?

Gastroesophageal reflux disease:

50 mg intramuscular/ intravenous injection every 6-8 hours.

Stress ulcer prophylaxis:

50 mg (2 ml) intramuscular injection or intermittent intravenous injection bolus or infusion every 6-8 hours; not to exceed 400 mg/day; alternatively, 6.25 mg/hour continuous infusion.

Erosive esophagitis:

Treatment: 50 mg intramuscular/ intravenous injection every 6-8 hours; intermittent bolus or infusion; alternatively, 6.25 mg/hour intravenous injection by continuous infusion.

Hypersecretory conditions:

Parenteral: 50 mg (2 ml) intramuscular injection or intermittent intravenous injection  bolus or infusion every 6-8 hours; not to exceed 400 mg/day; alternatively, 6.25 mg/hour continuous infusion.

What is the dose of Arnetin® (Ranitidine) for a child?

Active duodenal/gastric ulcer

Parenteral: 2-4 mg/kg/day IV divided q6-8hr; not to exceed 50 mg/dose or 200 mg/day.

Gastroesophageal reflux disease

Parenteral (Off-label): 2-4 mg/kg/day intramuscular injection every 6-8 hours; not to exceed 50 mg/dose or 200 mg/day; alternatively, infusion at 1mg/kg/dose once followed by continuous infusion of 0.08-0.17 mg/kg/hr or 2-4 mg/kg/day.


How should I take Arnetin® (Ranitidine)?

It will be given by your doctor.

Ask your health care provider any questions you may have about how to use Arnetin®.

What should I do in case of an emergency or overdose?

In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.

It is also important to carry a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking with you in case of emergencies.

What should I do if I miss a dose?

If you miss a dose of Arnetin®, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.

Side effects

What side effects can occur from Arnetin® (Ranitidine)?

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Arnetin® may cause these side effects, such as:

  • Headache;
  • Constipation;
  • Diarrhea;
  • Pain;
  • Redness;
  • Burning;
  • Stinging;
  • Vision changes;
  • Nervousness;
  • Confusion;
  • Depression;
  • Hallucinations;
  • Easy bleeding/bruising;
  • Enlarged breasts;
  • Severe tiredness;
  • Fast/slow/irregular heartbeat;
  • Signs of infection (such as sore throat that doesn’t go away, fever, chills);
  • Severe abdominal/stomach pain;
  • Dark urine;
  • Yellowing eyes/skin;
  • A sign of allergic reaction.


What should I know before using Arnetin® (Ranitidine)?

Consult with your doctor or pharmacist, if:

  • You are pregnant or breastfeeding. This is because, while you are expecting or feeding a baby, you should only take medicines on the recommendation of a doctor.
  • You are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
  • You have allergy with any of active or inactive ingredients of Arnetin® or other medications.
  • You have any other illnesses, disorders, or medical conditions, such as a certain blood disorder (porphyria), heart problems (such as irregular heartbeat), immune system problems, kidney problems, liver problems, lung problems (such as asthma, chronic obstructive pulmonary disease-COPD), other stomach problems (such as tumors).
  • You have any other types of allergies, such as to foods, dyes, preservatives, or animals.

Is it safe in specific conditions (e.g. pregnancy, breastfeeding, or surgery)?


Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).


There are no adequate studies in women for determining risk when using this medication   during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking this medication. This medication is pregnancy risk category B, according to the US Food and Drug Administration (FDA).

FDA pregnancy risk category reference below:

  • A=No risk;
  • B=No risk in some studies;
  • C=There may be some risk;
  • D=Positive evidence of risk;
  • X=Contraindicated;
  • N=Unknown.


Drug crosses into breast milk; discontinue drug, use caution.

Always consult your health care provider prior to using this medication if you are pregnant, breastfeeding.



What drugs may interact with Arnetin® (Ranitidine)?

Arnetin® may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs, and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

  • Taking atazanavir, dasatinib, delavirdine, certain azole antifungals (such as itraconazole, ketoconazole), pazopanib with Arnetin® may affect the absorption of them
  • Taking procainamide with Arnetin® may increase the side effects of procainamide
  • Taking warfarin with Arnetin® may increase the risk of bleeding or blood clots
  • Taking either midazolam or triazolam with Arnetin® may increase the risk of extreme drowsiness
  • Taking glipizide with Arnetin® may increase the risk of low blood sugar

Does food or alcohol interact with Arnetin® (Ranitidine)?

Arnetin® may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

How do I store Arnetin® (Ranitidine)?

Arnetin® is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Arnetin® in the bathroom or the freezer. There may be different brands of Arnetin® that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush Arnetin® down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

How is Arnetin® (Ranitidine) available?

Arnetin® is available in the following dosage forms and strengths:

  • Arnetin® Solution Injection 50mg/20ml.

Hello Health Group does not provide medical advice, diagnosis or treatment.

Share now :

Review Date: December 11, 2016 | Last Modified: December 19, 2019

You might also like