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Leader Allergy Relief D-24

Generic name: loratadine and pseudoephedrine [lor-AT-a-deen-and-SOO-doe-ee-FED-rin]
Brand names: Alavert D-12, Claritin-D 12 Hour, Claritin-D 24 Hour, Leader Allergy Relief D-24, Loratadine-D 12 Hour, Loratadine-D 24 Hour
Combinations for the upper respiratory tract

What is Leader Allergy Relief D-24?

Leader Allergy Relief D-24 treats sneezing and other symptoms associated with allergies, including runny noses, sinus pain, watery eyes and noses, or itchy eyes and noses.Leader Allergic Relief, D-24, can be used in other ways not mentioned in this guide.

Side effects of Leader Allergy D-24

If you experience any of the following symptoms of an allergic reaction, seek immediate medical attention: difficulty breathing, hives, swelling of your lips, face, or throat.

Leader Allergy Relief D-24 can cause serious side effects. If you experience:

  • If you feel your heart pounding or fluttering, then it is likely that you are experiencing a heart attack.
  • Severe dizziness, nervousness, or restlessness.

Some of the common side effects associated with Leader Allergy Reliever D-24 include:

  • Dry mouth, nose, or throat
  • Mild dizziness;
  • Sleep problems (insomnia).

There may be other side effects. For medical advice on side effects, call your doctor. Contacting the FDA with any adverse side-effect reports is possible at 1-800-FDA-1088.


If you've taken an MAO-inhibitor in the last 14 days (such as isocarboxazid or linezolid), or if your symptoms are worsened by MAO inhibitors, do not take this medication.

Before you take this drug

Leader Allergy Relief D-24 should not be used if an MAO inhibitor has been taken in the last 14 days. A dangerous medication interaction may occur. MAO inhibitors are isocarboxazid (linezolid), methylene blue injection, phenelzine, and other drugs.

If you suffer from:

  • Liver or kidney disease
  • Heart disease, high blood pressure
  • Diabetes;
  • Thyroid disorder;
  • An enlarged prostrate can cause urination issues.

If you are pregnant, do not take this medicine unless your doctor has prescribed it.Breastfeeding mothers should avoid taking this medicine.

How to take Leader Allergy Relief D-24?

Follow the instructions on the label or those prescribed by your physician. Cold and allergy medicines are only to be used for a short time until symptoms disappear.Follow the directions on the label of any medicine you give to a child. Never use medicine to put a child to sleep.Do not chew, crush, or break the tablet.If your symptoms don't improve within 7 days or you have a temperature, call your doctor.Tell your doctor or surgeon if you've taken allergy or cold medicine in the last few days if you are going to need surgery.Store away from heat and moisture at room temperature.

What happens if I miss the dose?

Leader Allergy Relief D-24 can be used as needed. You may not have a schedule. If it is almost time to take your next dose, skip any missed doses. Never take two doses in one go.

What happens if I overdose?

Call 1-800-222-1222 for poison help or seek immediate medical attention.A severe overdose can cause drowsiness.

What should be avoided?

Leader Allergy Relief D-24 can cause blurred vision or affect your reaction. Do not drive or engage in hazardous activities until you have determined how the medicine will affect you.Certain side effects can be exacerbated by alcohol consumption.Before using any other cold or cough medicines, check with your doctor.

Interaction with other drug

Leader Allergy Relief D-24 can make you more drowsy. Before taking an opioid, sleeping pill, muscle relaxant, or medication for anxiety or seizures, consult your doctor.Leader Allergy Relief D-24 may be affected by other drugs, such as prescription and over-the-counter medicines, vitamins, and herbal products. Inform your doctor of all the medicines you are currently taking and those that you will begin or stop using.