By Medically reviewed by hellodoktor

Generic Name: Claritin-D Brand Name(s): Generics only. No brands available.


What is Claritin-D® used for?

Claritin-D® is commonly used for temporarily relieving symptoms of hay fever or respiratory allergies such as stuffy or runny nose, sneezing, itchy or watery eyes, itchy nose or throat, or sinus congestion or pressure. It may also be used for other conditions as determined by your doctor.

How should I take Claritin-D®?

Use Claritin-D® sustained-release tablets as directed by your doctor. Check the label on the medicine for exact dosing instructions.

Take Claritin-D® sustained-release tablets by mouth with or without food. Swallow Claritin-D® sustained-release tablets whole. Do not break, crush, or chew before swallowing.

Ask your health care provider any questions you may have about how to use Claritin-D® sustained-release tablets.

How do I store Claritin-D®?

Claritin-D® is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Claritin-D® in the bathroom or the freezer. There may be different brands of Claritin-D® 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 Claritin-D® 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.

Precautions & warnings

What should I know before using Claritin-D®?

Before using this drug, tell your doctor 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 Claritin-D® or other medications.
  • You have any other illnesses, disorders, or medical conditions.


  • Narrow-angle glaucoma.
  • Urinary retention.
  • Severe hypertension or coronary artery disease.
  • During or within 14 days of MAOIs.

Is it safe during pregnancy or breastfeeding?

There isn’t enough information about the safety of using this medication during pregnancy and breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking this medication.

Side effects

What side effects can occur from Claritin-D®?

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most common side effects persist or become bothersome:

  • Coughing
  • Dizziness
  • Drowsiness
  • Dry mouth
  • Excitability
  • Fatigue
  • Headache
  • Loss of appetite
  • Mild stomach upset
  • Nausea
  • Nervousness
  • Sleeplessness
  • Sore throat
  • Thirst

Seek medical attention right away if any of these severe side effects occur:

  • Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue)
  • Chest pain
  • Difficulty urinating
  • Fast or irregular heartbeat
  • Mental or mood changes
  • Seizures
  • Severe dizziness
  • Uncontrolled shaking or tremor

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.


What drugs may interact with Claritin-D®?

Claritin-D® 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.

Products may interact with this drug, such as:

  • Furazolidone or MAOIs (e.g., phenelzine) because side effects, such as headache, fever, and high blood pressure, may occur.
  • Droxidopa because irregular heartbeat or heart attack may occur.
  • Guanadrel or guanethidine because their effectiveness may be decreased by Claritin-D 24 Hour 24-hour sustained-release tablets.
  • Bromocriptine because the risk of its side effects or toxic effects may be increased by Claritin-D 24 Hour 24-hour sustained-release tablets.
  • Urinary alkalinizers (e.g., sodium bicarbonate) because they may increase the side effects.

Does food or alcohol interact with Claritin-D®?

Claritin-D® 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.

What health conditions may interact with Claritin-D®?

Claritin-D® may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.

Health conditions may interact with this drug, such as:

  • Hepatic or renal impairment
  • Hypertension
  • Ischemic heart disease
  • Increased intraocular pressure
  • Thyroid disease
  • GI or urinary obstruction
  • Seizures
  • Diabetes


The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using Claritin-D®.

What is the dose of Claritin-D® for an adult?

The recommended dose is 1 tablet orally once daily.

What is the dose of Claritin-D® for a child?

Children 12 years and over: The recommended dose is 1 tablet orally once daily.

Children under 12 years: ask a doctor.

How is Claritin-D® available?

Claritin-D® is available in the following dosage forms and strengths:

  • Loratadine 10mg, pseudoephedrine sulfate 240mg; sustained-release tablets

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.

What should I do if I miss a dose?

If you miss a dose of Claritin-D®, 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.

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

Review Date: June 26, 2017 | Last Modified: September 13, 2019

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