Key facts about Clarinex-D 24 Hour
What is Clarinex-D 24 Hour?
Clarinex-D 24 Hour is the brand name for desloratadine/pseudoephedrine and is available as an extended-release oral tablet.
What dosages is Clarinex-D 24 Hour available in?
Clarinex-D 24 Hour is available as an extended-release tablet that contains desloratadine 5 mg and pseudoephedrine sulfate 240 mg.
What is Clarinex-D 24 Hour used for?
Clarinex-D 24 Hour is an antihistamine and decongestant combinatiion that is used to treat symptoms of seasonal allergies, such as runny or stuffy nose and itchy or watery eyes, in adults and children ages 12 years and older.
How does Clarinex-D 24 Hour work?
Clarinex-D 24 Hour is a combination of two medications that work together to relieve allergy symptoms. Desloratadine is an antihistamine. It blocks histamine, a natural chemical in your body that can cause allergy symptoms, like itchy eyes, runny nose, sneezing, and hives. By blocking histamine, Clarinex-D helps relieve allergy symptoms. Pseudoephedrine is a decongestant. It tightens blood vessels in the nose to relieve sinus pressure and help congestion.
How do I take Clarinex-D 24 Hour?
Clarinex-D 24 Hour is typically taken by mouth once daily.
Is it safe for me to take Clarinex-D 24 Hour?
Clarinex-D 24 Hour is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication in the following:
- Are currently taking or have taken a monoamine oxidase inhibitor (MAOI) in the last 14 days
- Narrow-angle glaucoma
- Urinary retention
- Severe high blood pressure or coronary artery disease
- Hypersensitivity to any component in the product
Clarinex-D 24 Hour Common Side Effects
Common side effects of Clarinex-D 24 Hour:
- Trouble sleeping
- Dry mouth
- Headache
- Fatigue
- Sleepiness
- Dizziness
- Sore throat
- Nausea
- Loss of appetite
Clarinex-D 24 Hour Serious Side Effects
Serious side effects are rare with Clarinex-D 24 Hour. Contact your healthcare provider immediately if you experience any of the following:
- High blood pressure or fast heart rate: chest pain, blurry vision, headache, fatigue
- Allergic reaction: itchy, red rash (hives); shortness of breath; chest tightness; swelling of lips, tongue, throat, face, or eyes
Effects of other drugs, drug classes and over-the-counter products on Clarinex-D 24 Hour
The following medications may interact with Clarinex-D 24 Hour:
- Monoamine oxidase (MAO) inhibitors
Who makes Clarinex-D 24 Hour?
Merck & Co., Inc.
Is Clarinex-D 24 Hour safe in pregnancy?
It is not known whether this medication is safe for you and your unborn baby during pregnancy. Talk to your doctor if you are already pregnant or if you have plans on becoming pregnant. They will recommend what is best for you.













