Retiva

Retiva Uses, Dosage, Side Effects, Mechanism of Action, How Long Does it Take to Work? Retiva is a brand name. Its generic name is Ranitidine.

Introduction

Retiva is a histamine-2(H2)-blocker used to treat and prevent stomach and duodenal ulcers, and to treat other stomach and gastrointestinal conditions. It is an over-the-counter drug, available both as a prescription and non-prescription medication.

Uses

Retiva is used to treat gastrointestinal disorders such as gastroesophageal reflux disease (GERD), ulcers, and other conditions involving excessive stomach acid. It can also be used to prevent stress ulcers, to treat heartburn, and to reduce the occurrence of stomach or duodenal ulcers

Mechanism of Action

Retiva works by reducing the amount of acid produced by the stomach, therefore reducing the symptoms of heartburn and other gastrointestinal conditions. It does this by blocking histamine-2, which reduces the amount of acid production in the stomach in response to food.

How Long Does it Take to Work?

Retiva begins to reduce stomach acid production and improve symptoms within a few hours or days after the first dose. The maximum benefit is usually reached within 4 weeks.

Absorption

Retiva is well absorbed in the stomach and intestine. It has an oral absorption rate of 65-80%.

Route of Elimination

Retiva is eliminated by the kidneys through urine via glomerular filtration and tubular secretion. Its elimination half-life is 1-2 hours.

Dosage

Retiva is available in tablets, capsules, and suspension forms. The dosage forms and strengths are as follows:

• Tablet: 75 mg, 150 mg, and 300 mg
• Capsules: 75 mg and 150 mg
• Suspension: 10 mg/mL

The usual adult dose for treatment of active duodenal ulcers is 150 mg to 300 mg twice daily. For maintenance of healing of duodenal ulcers, 150 mg once daily is recommended.

For treatment of esophageal reflux, the usual dose is 150 to 300 mg twice daily. For maintenance of healing of esophageal lesions, the recommended dose is 150 mg once daily.

For treatment of conditions involving excessive stomach acid, the recommended dose is 150 to 300 mg twice daily.

Administration

Retiva can be taken with or without food. It should be taken with a full glass of water to ensure that it is completely absorbed. It is important to consume the full amount of water that is recommended for each dose.

Side Effects

Common side effects of ranitidine include headache, diarrhea, constipation, nausea, rash, dizziness, and abdominal pain. Less common side effects may include muscle pain, joint pain, fever, mental confusion, and depression.

Toxicity

Retiva has a low toxicity and is generally well tolerated. Large doses may cause hypotension and can be fatal in cases of overdose.

Precautions

Retiva should be used with caution in people with kidney or liver disease, and those with a history of drug allergies.

Interactions

Retiva may interact with other medications including antacids, drugs used to treat heartburn, anti-seizure medications, certain antibiotics, and theophyllines.

Disease Interactions

Retiva should not be used in people with porphyria, a rare metabolic disorder. It should also be used with caution in people with severe kidney disease.

Drug Interactions

Retiva can interact with certain medications such as antacids, drugs used to treat heartburn, anti-seizure medications, certain antibiotics, and theophyllines. Be sure to discuss all medications you are taking with your healthcare provider before taking ranitidine.

Food Interactions

Retiva may interact with food. Consuming alcohol while taking ranitidine may increase the risk of side effects such as headache, dizziness, and drowsiness.

Pregnancy Use

Retiva should only be used during pregnancy if the potential benefit justifies the potential risk to the fetus. Be sure to discuss the use of ranitidine with your healthcare provider before using it during pregnancy.

Lactation Use

Retiva is excreted in breast milk and may affect a nursing baby. Therefore, it should be used with caution in breastfeeding women.

Acute Overdose

If an overdose of Retiva occurs, seek medical attention immediately. Symptoms of overdose may include low blood pressure, dizziness, and unusual sleepiness.

Contraindication

Retiva is contraindicated in people who are allergic to the active ingredient in the drug.

Use Direction

Retiva should be taken as directed by your healthcare provider. The usual adult dose for treatment of active duodenal ulcers is 150 mg to 300 mg twice daily. For maintenance of healing of duodenal ulcers, 150 mg once daily is recommended.

Storage Condition

Retiva should be stored at room temperature, away from heat and moisture. Keep out of reach of children.

Volume of Distribution

The apparent volume of distribution for Retiva is 5L/kg.

Half Life

The half-life of Retiva is 1-2 hours.

Clearance

The clearance for Retiva is 10 mL/min/kg.

Here you find in details version of Retiva

Some Frequently Asked Questions About Retiva

What is Retiva?

Retiva is an over-the-counter and prescription histamine-2 blocker or H2 blocker used to treat gastroesophageal reflux disease (GERD), Zollinger-Ellison Syndrome (ZES) and other conditions caused by too much acid in the stomach.

How does Retiva work?

Retiva works by inhibiting the production of acid in the stomach, thus reducing the symptoms of acid reflux. It can also protect the lining of the stomach from damage due to the excess stomach acid.

What is the brand name of Retiva?

The brand name of Retiva is Zantac.

What is the dosage of Retiva?

The dosage of Retiva depends on the medical condition and age of the patient; however, the usual dosage for adults in the treatment of acid reflux is 150 mg twice a day.

What are the side effects of Retiva?

The most common side effects of Retiva include headache, dizziness, nausea, and diarrhea. Other less common side effects include constipation, stomach pain, and rash.

Does Retiva interact with other medications?

Yes, Retiva can interact with other medications such as anticoagulants, sulfonylureas, and NSAIDs. Talk to your doctor or pharmacist before taking any other medication while taking Retiva.

What is the difference between Retiva and Famotidine?

Retiva and Famotidine are both H2 blockers used for treating acid reflux and GERD. The main difference between them is that Retiva is more effective for treating Zollinger-Ellison Syndrome. In terms of side effects, Retiva may cause headaches and dizziness, while Famotidine may cause diarrhea.

Can I take Retiva while pregnant/breastfeeding?

It is not recommended to take Retiva while pregnant or breastfeeding as it may be harmful to the fetus or infant. Talk to your doctor before taking Retiva during pregnancy or while breastfeeding.

How long does it take for Retiva to work?

Retiva usually begins to work within an hour of taking it and continues to work for up to 12 hours.

Can I take Tylenol (acetaminophen) and Retiva together?

Yes, it is safe to take Tylenol (acetaminophen) and Retiva together.

Is Retiva a laxative?

No, Retiva is not a laxative.

How should I take Retiva?

Retiva should be taken with or without food as prescribed by a doctor. It is important to take Retiva exactly as prescribed and not to take more or less than recommended.

Can I take Retiva long-term?

Retiva can be taken long-term if it is necessary and advised by your doctor. It may be necessary to take Retiva long-term to treat certain conditions, such as Zollinger-Ellison Syndrome.

What foods should I avoid while taking Retiva?

It is recommended to avoid eating any food that increases the production of acid in the stomach, such as alcohol, caffeine, spicy foods, and citrus fruits while taking Retiva.

Can Retiva cause weight gain?

No, there is no evidence to suggest that Retiva is linked to weight gain.

Can I take Omeprazole and Retiva together?

No, it is not recommended to take Omeprazole and Retiva together as they are both H2 blockers that work by suppressing acid production in the stomach.

Can I take vitamin C while taking Retiva?

Yes, it is safe to take vitamin C while taking Retiva.

Does Retiva raise blood pressure?

No, there is no evidence to suggest that Retiva is linked to increased blood pressure.

Can I take Retiva if I have diabetes?

Yes, it is safe to take Retiva if you have diabetes.

Can I take ibuprofen and Retiva together?

Yes, it is safe to take ibuprofen and Retiva together.

Can I take aspirin and Retiva together?

Yes, it is safe to take aspirin and Retiva together.

Does Retiva cause constipation?

Yes, Retiva can cause constipation in some people. If you experience constipation while taking Retiva, it is important to contact your doctor.

Can I take Pepto-Bismol and Retiva together?

No, it is not recommended to take Pepto-Bismol and Retiva together as they both contain bismuth, which can have adverse effects when taken together.

What is the best time of day to take Retiva?

The best time of day to take Retiva depends on the dosage prescribed by your doctor. However, as a general rule, it is best to take the medication after meals or before bedtime.

Can I take Axid and Retiva together?

No, it is not recommended to take Axid and Retiva together as they both contain similar active ingredients and can lead to an overdose.

Can Retiva cause liver damage?

Retiva is not known to cause liver damage; however, if you notice any signs or symptoms of liver damage, it is important to contact your doctor immediately.

Can I take synthroid and Retiva together?

Yes, it is safe to take synthroid and Retiva together.

Does Retiva cause weight loss?

No, there is no evidence to suggest that Retiva is linked to weight loss.

Can Retiva increase anxiety?

Yes, Retiva can increase anxiety in some people. If you experience anxiety while taking Retiva, it is important to contact your doctor.

Can Retiva cause diarrhea?

Yes, Retiva can cause diarrhea in some people. If you experience diarrhea while taking Retiva, it is important to contact your doctor.

Can I take Prilosec and Retiva together?

No, it is not recommended to take Prilosec and Retiva together as they both contain similar active ingredients and can lead to an overdose.

Can I take phentermine and Retiva together?

Yes, it is safe to take phentermine and Retiva together.

Can I take smellaid and Retiva together?

Yes, it is safe to take smellaid and Retiva together.

Can I take Zofran and Retiva together?

Yes, it is safe to take Zofran and Retiva together.

Can I take Allegra and Retiva together?

Yes, it is safe to take Allegra and Retiva together.

Can I take a multivitamin and Retiva together?

Yes, it is safe to take a multivitamin and Retiva together.

Can I take Tagamet and Retiva together?

No, it is not recommended to take Tagamet and Retiva together as they both contain similar active ingredients and can lead to an overdose.

Can Retiva cause stomach pain?

Yes, Retiva can cause stomach pain in some people. If you experience stomach pain while taking Retiva, it is important to contact your doctor.

Can I take ibuprofen and Retiva at the same time?

Yes, it is safe to take ibuprofen and Retiva at the same time.

Can I take aspirin and Retiva at the same time?

Yes, it is safe to take aspirin and Retiva at the same time.

Can Retiva cause headaches?

Yes, Retiva can cause headaches in some people. If you experience headaches while taking Retiva, it is important to contact your doctor.

Can I take Benadryl and Retiva together?

Yes, it is safe to take Benadryl and Retiva together.

Can I take Tylenol and Retiva together?

Yes, it is safe to take Tylenol and Retiva together.

Can I take Prevacid and Retiva together?

No, it is not recommended to take Prevacid and Retiva together as they both contain similar active ingredients and can lead to an overdose.

Can I take Retiva and Pepcid AC together?

No, it is not recommended to take Retiva and Pepcid AC together as they both contain similar active ingredients and can lead to an overdose.

Can Retiva cause dizziness?

Yes, Retiva can cause dizziness in some people. If you experience dizziness while taking Retiva, it is important to contact your doctor.