Terfenadine Carboxylate

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

Introduction

Terfenadine Carboxylate is an antihistamine used to treat seasonal allergies, skin allergies or hives. It is available both as a prescription and an over-the-counter medication.

Uses

Terfenadine Carboxylate is used to treat the symptoms of seasonal allergies such as sneezing, runny nose, red/watery eyes, itching of the nose, throat, or eyes, hives and skin itching. It is also used to treat skin itching and hives caused by a condition called chronic idiopathic urticaria.

Mechanism of Action

Terfenadine Carboxylate is an antihistamine, which works by blocking the action of histamine, a substance in the body that causes allergic symptoms such as sneezing, itching, and runny nose. Histamine is released by the body during an allergic reaction.

How Long Does It Take to Work?

Terfenadine Carboxylate starts to work within one hour and reaches peak effect in about four hours. The effects of Terfenadine Carboxylate can last up to 24 hours.

Absorption

Terfenadine Carboxylate is quickly and completely absorbed from the gastrointestinal tract.

Route of Elimination

Terfenadine Carboxylate is metabolized in the liver and is mainly eliminated in the feces, with only a small amount (less than 10%) of the drug being excreted through urine.

Dosage

The recommended dose of Terfenadine Carboxylate for adults and children 6 years of age and older is 60mg twice daily or 180mg once daily. For children younger than 6 years of age, the recommended dose is 30mg twice daily.

Administration

Terfenadine Carboxylate can be taken with or without food. It can be taken orally, with water or other liquids. It is important to take Terfenadine Carboxylate exactly as prescribed by your healthcare provider.

Side Effects

The most common side effects reported with Terfenadine Carboxylate include drowsiness, dry mouth, nausea, and headache. More serious side effects are rare.

Toxicity

No fatalities have been reported with Terfenadine Carboxylate overdose. Overdose symptoms may include nausea, vomiting, and dizziness.

Precautions

Terfenadine Carboxylate should be used with caution in people with liver or kidney disease, as well as in people who are taking other medications.

Interactions

Terfenadine Carboxylate may interact with other medications, such as antibiotics, hypertension drugs, antidepressants, and antifungals. Patients should tell their doctor all medications and supplements they are taking to avoid interactions.

Disease Interactions

Terfenadine Carboxylate may worsen symptoms in people with kidney or liver disease, or schizophrenia.

Drug Interactions

Terfenadine Carboxylate may interact with certain medications such as antibiotics, hypertension medications, antidepressants, antifungals, and antacids. Patients should tell their doctor all medications and supplements they are taking to avoid interactions.

Food Interactions

Terfenadine Carboxylate should be taken on an empty stomach, 1 hour before or 2 hours after a meal. Grapefruit or grapefruit juice may affect the absorption of Terfenadine Carboxylate, so it should be avoided.

Pregnancy Use

Terfenadine Carboxylate has not been studied in pregnant women. Therefore, it is not recommended for use during pregnancy unless the potential benefits outweigh the potential risks.

Lactation Use

Terfenadine Carboxylate has not been studied in nursing mothers. Therefore, it is not recommended for use while breastfeeding unless the potential benefits outweigh the potential risks.

Acute Overdose

No fatalities have been reported with Terfenadine Carboxylate overdose. Overdose symptoms may include nausea, vomiting, and dizziness.

Contraindication

Terfenadine Carboxylate should not be used by people who are hypersensitive to the drug or its ingredients.

Use Direction

Terfenadine Carboxylate should be taken as directed by your doctor, typically once or twice daily with or without food. If you miss a dose of Terfenadine Carboxylate, take it as soon as you remember.

Storage Condition

Terfenadine Carboxylate should be stored at room temperature, away from direct light and moisture.

Volume of Distribution

The volume of distribution of Terfenadine Carboxylate is approximately 8.4L/kg.

Half Life

The half-life of Terfenadine Carboxylate is approximately 11 hours.

Clearance

The clearance rate of Terfenadine Carboxylate is approximately 29.9 mL/min/kg.

Here you find in details version of Terfenadine Carboxylate

Some Frequently Asked Questions About Terfenadine Carboxylate

What is Terfenadine Carboxylate?

Terfenadine Carboxylate is an antihistamine that is used to treat the symptoms of seasonal allergies, including sneezing, runny nose, and itchy or watery eyes.

Can I take Terfenadine Carboxylate if I am pregnant or breastfeeding?

Terfenadine Carboxylate is not advised to be taken by pregnant or breastfeeding women. It is advised to speak to your health care provider before taking Terfenadine Carboxylate or any other medication.

How should I take Terfenadine Carboxylate?

Terfenadine Carboxylate should be taken as directed by your doctor. It is advised to take it with a full glass of water. Do not take more or less than the prescribed dosage.

What are the possible side effects of Terfenadine Carboxylate?

The most common side effects reported with Terfenadine Carboxylate are headache, drowsiness, dry mouth, nausea, dizziness, and constipation. Contact your doctor immediately if these side effects are severe or don’t go away.

Can Terfenadine Carboxylate be taken with other medications?

It is advised to speak to your doctor before taking Terfenadine Carboxylate with any other medications, as it may interact with some medicines and cause unwanted side effects.

What should I do if I miss a dose of Terfenadine Carboxylate?

If you miss a dose of Terfenadine Carboxylate, it should be taken as soon as possible. However, if it is almost time for your next dose, skip the missed dose and continue as normal.

What should I do if I overdose on Terfenadine Carboxylate?

If you think you may have overdosed on Terfenadine Carboxylate, contact your doctor or local poison control center immediately for medical advice.

How long does it take for Terfenadine Carboxylate to start working?

Terfenadine Carboxylate usually starts to work within 1-2 hours after taking it.

How long does Terfenadine Carboxylate stay in your system?

Terfenadine Carboxylate generally has an elimination half-life of 10-14 hours, meaning that it should take about 10-14 hours for it to be completely eliminated from your system.

Does Terfenadine Carboxylate cause drowsiness?

Yes, Terfenadine Carboxylate may cause drowsiness in some people.

Does Terfenadine Carboxylate interact with any other drugs?

Terfenadine Carboxylate may interact with other drugs, including certain antibiotics, antifungals, and antacids. It is advised to speak to your doctor or pharmacist before taking any other medications along with Terfenadine Carboxylate.

Can children or teenagers take Terfenadine Carboxylate?

Terfenadine Carboxylate is not recommended for children under the age of 12. If your child is 12 or older, please talk to your doctor before giving them Terfenadine Carboxylate.

Can Terfenadine Carboxylate be taken long-term?

Terfenadine Carboxylate is not intended to be taken for longer than 3 weeks. If you have any questions about taking Terfenadine Carboxylate long-term, please speak to your doctor.

Can Terfenadine Carboxylate cause headaches?

Yes, Terfenadine Carboxylate may cause headaches in some people. If your headaches become severe or don't go away, contact your doctor.

Can I take Terfenadine Carboxylate with alcohol?

It is not advised to take Terfenadine Carboxylate with alcohol. The combination of the two may increase the risk of side effects.

What is the recommended dose of Terfenadine Carboxylate?

The recommended dose of Terfenadine Carboxylate for adults and children 12 years and older is 60 mg once daily. Your doctor may prescribe different dosages depending on your individual needs.

Can Terfenadine Carboxylate cause weight gain?

It is rare for Terfenadine Carboxylate to cause any type of weight gain. However, if you experience any changes in your weight while taking Terfenadine Carboxylate, contact your doctor.

Do I need a prescription for Terfenadine Carboxylate?

Yes, Terfenadine Carboxylate requires a prescription from your doctor.

Can Terfenadine Carboxylate be taken with other allergy medications?

Terfenadine Carboxylate can be taken with other allergy medications, but it is advised to speak to your doctor to make sure the medication combination is safe for you.

What is the difference between Terfenadine Carboxylate and Claritin?

Both Terfenadine Carboxylate and Claritin contain the same active ingredient, Terfenadine Carboxylate. The difference is that Claritin is available over-the-counter, while Terfenadine Carboxylate requires a prescription.

Are there any foods I should avoid while taking Terfenadine Carboxylate?

It is not necessary to avoid any particular food while taking Terfenadine Carboxylate. However, it is best to check with your doctor if you are unsure.

Does Terfenadine Carboxylate have any drug interactions I should be aware of?

Terfenadine Carboxylate may interact with certain medications. It is advised to speak to your doctor about any other medicines you are taking before taking Terfenadine Carboxylate.

Does Terfenadine Carboxylate cause dry mouth?

Yes, Terfenadine Carboxylate may cause dry mouth in some cases. If you experience any other serious side effects, contact your doctor immediately.

Can I take Terfenadine Carboxylate at night?

Yes, Terfenadine Carboxylate can be taken at night. However, as it can cause drowsiness, it is best to take it in the morning or early afternoon.

Are there any other antihistamines I can take instead of Terfenadine Carboxylate?

Yes, there are other antihistamines that can be used for seasonal allergies. Speak to your doctor to discuss the options.

Can I take Terfenadine Carboxylate if I have high blood pressure?

Yes, Terfenadine Carboxylate can be taken if you have high blood pressure, however it is advised to speak to your doctor before taking any medication.

Does Terfenadine Carboxylate affect birth control?

Terfenadine Carboxylate has no known effect on birth control, however it is always best to speak to your doctor before taking any medications.

Is Terfenadine Carboxylate bad for the liver?

Terfenadine Carboxylate generally does not cause any liver damage, but it is always best to speak to your doctor if you have any concerns about liver health.

Does Terfenadine Carboxylate make you sleepy?

Yes, Terfenadine Carboxylate may make some people feel sleepy. If this is the case, it is best to take it in the morning or early afternoon.

Can I take Terfenadine Carboxylate with ibuprofen?

It is not advised to take Terfenadine Carboxylate with ibuprofen, as this could increase the risk of side effects. Speak to your doctor if you need to take ibuprofen and Terfenadine Carboxylate together.

What is the maximum dosage of Terfenadine Carboxylate?

The maximum daily dose of Terfenadine Carboxylate is 180 mg. Do not take more than this without speaking to your doctor first.

Does Terfenadine Carboxylate cause constipation?

Yes, Terfenadine Carboxylate may cause constipation in some cases. If constipation becomes severe or does not go away, contact your doctor.

Is Terfenadine Carboxylate safe for long-term use?

Terfenadine Carboxylate is not intended to be used for longer than 3 weeks. If you have any questions about taking Terfenadine Carboxylate long-term, please speak to your doctor.

Can I take Terfenadine Carboxylate with loratadine?

It is not advised to take Terfenadine Carboxylate and loratadine together, as this combination could increase the risk of side effects. It is always best to speak to your doctor before taking any medications.

Does Terfenadine Carboxylate cause weight loss?

No, Terfenadine Carboxylate does not usually cause any weight loss. If you experience any changes in your weight while taking Terfenadine Carboxylate, contact your doctor for further advice.

Should I take Terfenadine Carboxylate on an empty stomach?

No, Terfenadine Carboxylate should be taken with a full glass of water. It is not advised to take it on an empty stomach.

Can I take Terfenadine Carboxylate if I have glaucoma?

Terfenadine Carboxylate can usually be taken if you have glaucoma. However, it is always best to speak to your doctor before taking any medication if you have a pre-existing condition.

Is Terfenadine Carboxylate available in generic form?

Yes, Terfenadine Carboxylate is available in generic form and can be found in most drug stores.

Can I take Terfenadine Carboxylate if I am taking other medication?

It is advised to speak to your doctor or pharmacist before taking Terfenadine Carboxylate with other medications, as some medications may interact and cause adverse side effects.

Is Terfenadine Carboxylate considered a narcotic?

No, Terfenadine Carboxylate is not considered a narcotic. It is an antihistamine that is used to treat the symptoms of seasonal allergies.

Does Terfenadine Carboxylate need to be refrigerated?

No, Terfenadine Carboxylate does not need to be refrigerated. It should be stored at room temperature in a cool, dark, and dry place.