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Clarinex

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Clarinex

Clarinex

Clarinex Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Clarinex (desloratadine) is used to treat the symptoms of allergies, such as sneezing, watery eyes, and runny nose. It is also used to treat skin hives and itching in people with chronic skin reactions. Clarinex is an antihistamine. Common side effects include throat discomfort, muscle pain, nausea, indigestion, loss of appetite, diarrhea, dizziness, fatigue, trouble sleeping, nosebleeds, or dry mouth.

The recommended dose of Clarinex for adults and children 12 years or older is 5 mg daily. Syrup can be used for children two years and older with the dose dependent on the age of the child. There may be other drugs that can affect Clarinex. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Clarinex should be used only when prescribed during pregnancy. This drug passes into breast milk. Consult your doctor before breast-feeding.

Our Clarinex (desloratadine) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is Patient Information in Detail?

Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.

Clarinex in Detail - Patient Information: Side Effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • fast, pounding, or uneven heartbeat;
  • fever, flu symptoms;
  • seizure (convulsions); or
  • jaundice (yellowing of the skin or eyes).

Less serious side effects may include:

  • dry mouth, sore throat, cough;
  • muscle pain;
  • drowsiness, tired feeling;
  • nausea, diarrhea; or
  • headache.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Clarinex (Desloratadine) »

What is Patient Information Overview?

A concise overview of the drug for the patient or caregiver from First DataBank.

Clarinex Overview - Patient Information: Side Effects

SIDE EFFECTS: Sore throat, nausea, tiredness, stomach upset, or muscle pain may occur. Fever, loss of appetite, diarrhea, or trouble sleeping may also occur, especially in children. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Read the entire patient information overview for Clarinex (Desloratadine)»

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Clarinex FDA Prescribing Information: Side Effects
(Adverse Reactions)

SIDE EFFECTS

Adults and Adolescents

Allergic Rhinitis: In multiple-dose placebo-controlled trials, 2,834 patients ages 12 years or older received CLARINEX (desloratadine) Tablets at doses of 2.5 mg to 20 mg daily, of whom 1,655 patients received the recommended daily dose of 5 mg. In patients receiving 5 mg daily, the rate of adverse events was similar between CLARINEX (desloratadine) and placebo-treated patients. The percent of patients who withdrew prematurely due to adverse events was 2.4% in the CLARINEX (desloratadine) group and 2.6% in the placebo group. There were no serious adverse events in these trials in patients receiving desloratadine. All adverse events that were reported by greater than or equal to 2% of patients who received the recommended daily dose of CLARINEX (desloratadine) Tablets (5.0 mg once-daily), and that were more common with CLARINEX (desloratadine) Tablets than placebo, are listed in Table 5.

Table 5: Incidence of Adverse Events Reported by 2% or More of Adult and Adolescent Allergic Rhinitis Patients in Placebo-Controlled, Multiple-Dose Clinical Trials with the Tablet Formulation of CLARINEX (desloratadine)

Adverse Experience CLARINEX Tablets 5 mg
(n=1,655)
Placebo
(n=1,652)
Pharyngitis 4.1% 2.0%
Dry Mouth 3.0% 1.9%
Myalgia 2.1% 1.8%
Fatigue 2.1% 1.2%
Somnolence 2.1% 1.8%
Dysmenorrhea 2.1% 1.6%

The frequency and magnitude of laboratory and electrocardiographic abnormalities were similar in CLARINEX (desloratadine) and placebo-treated patients.

There were no differences in adverse events for subgroups of patients as defined by gender, age, or race.

Chronic Idiopathic Urticaria: In multiple-dose, placebo-controlled trials of chronic idiopathic urticaria, 211 patients ages 12 years or older received CLARINEX (desloratadine) Tablets and 205 received placebo. Adverse events that were reported by greater than or equal to 2% of patients who received CLARINEX (desloratadine) Tablets and that were more common with CLARINEX (desloratadine) than placebo were (rates for CLARINEX (desloratadine) and placebo, respectively): headache (14%, 13%), nausea (5%, 2%), fatigue (5%, 1%), dizziness (4%, 3%), pharyngitis (3%, 2%), dyspepsia (3%, 1%), and myalgia (3%, 1%).

Pediatrics

Two hundred and forty-six pediatric subjects 6 months to 11 years of age received CLARINEX (desloratadine) Syrup for 15 days in three placebo-controlled clinical trials. Pediatric subjects aged 6 to 11 years received 2.5 mg once a day, subjects aged 1 to 5 years received 1.25 mg once a day, and subjects 6 to 11 months of age received 1.0 mg once a day. In subjects 6 to 11 years of age, no individual adverse event was reported by 2 percent or more of the subjects. In subjects 2 to 5 years of age, adverse events reported for CLARINEX (desloratadine) and placebo in at least 2 percent of subjects receiving CLARINEX (desloratadine) Syrup and at a frequency greater than placebo were fever (5.5%, 5.4%), urinary tract infection (3.6%, 0%), and varicella (3.6%, 0%). In subjects 12 months to 23 months of age, adverse events reported for the CLARINEX (desloratadine) product and placebo in at least 2 percent of subjects receiving CLARINEX (desloratadine) Syrup and at a frequency greater than placebo were fever (16.9%, 12.9%), diarrhea (15.4%, 11.3%), upper respiratory tract infections (10.8%, 9.7%), coughing (10.8%, 6.5%), appetite increased (3.1%, 1.6%), emotional lability (3.1%, 0%), epistaxis (3.1%, 0%), parasitic infection (3.1%, 0%), pharyngitis (3.1%, 0%), rash maculopapular (3.1%, 0%). In subjects 6 months to 11 months of age, adverse events reported for CLARINEX (desloratadine) and placebo in at least 2 percent of subjects receiving CLARINEX (desloratadine) Syrup and at a frequency greater than placebo were upper respiratory tract infections (21.2%, 12.9%), diarrhea (19.7%, 8.1%), fever (12.1%, 1.6%), irritability (12.1%, 11.3%), coughing (10.6%, 9.7%), somnolence (9.1%, 8.1%), bronchitis (6.1%, 0%), otitis media (6.1%, 1.6%), vomiting (6.1%, 3.2%), anorexia (4.5%, 1.6%), pharyngitis (4.5%, 1.6%), insomnia (4.5%, 0%), rhinorrhea (4.5%, 3.2%), erythema (3.0%, 1.6%), and nausea (3.0%, 0%). There were no clinically meaningful changes in any electrocardiographic parameter, including the QTc interval. Only one of the 246 pedi-atric subjects receiving CLARINEX (desloratadine) Syrup in the clinical trials discontinued treatment because of an adverse event.

Observed During Clinical Practice

The following spontaneous adverse events have been reported during the marketing of desloratadine: tachycardia, palpitations, rare cases of hypersensitivity reactions (such as rash, pruritus, urticaria, edema, dyspnea, and anaphylaxis), psychomotor hyperactivity, seizures, and elevated liver enzymes including bilirubin, and very rarely, hepatitis.

Drug Abuse And Dependence

There is no information to indicate that abuse or dependency occurs with CLARINEX (desloratadine) Tablets.

Read the entire FDA prescribing information for Clarinex (Desloratadine) »

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Clarinex - User Reviews

Clarinex User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Clarinex sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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