Dexchlorpheniramine maleate (By mouth)
Dexchlorpheniramine Maleate (dex-klor-fen-IR-a-meen MAL-ee-ate)
Treats sneezing, runny or stuffy nose, watery eyes, and other symptoms of seasonal allergies. Also treats skin hives and swelling caused by allergic reactions.
When This Medicine Should Not Be Used
How to Use This Medicine
Long Acting Tablet
- Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.
- Swallow the extended-release tablet whole. Do not crush, break, or chew it. It is best to use this medicine at bedtime.
If a dose is missed:
- Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Tell your doctor if you drink alcohol or if you are using any medicine that makes you sleepy, such as allergy medicine or narcotic pain medicine.
- Do not drink alcohol while you are using this medicine.
Warnings While Using This Medicine
- Make sure your doctor knows if you are pregnant or breastfeeding, or if you have any allergies.
- Make sure your doctor knows if you have a blocked digestive tube, diabetes, glaucoma, heart disease, high blood pressure, problems with urination due to enlarged prostate, blocked bladder, stomach ulcer, or thyroid disease.
- Make sure your doctor knows if you have breathing problems such as asthma, chronic bronchitis, or emphysema. Tell your doctor if you have a cough caused by smoking, or breathing problems.
- This medicine may make you dizzy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blurred vision.
- Change in how much or how often you urinate.
- Dizziness, confusion, or agitation.
- Fast, irregular, or pounding heartbeat.
- Lightheadedness or fainting.
- Numbness, tingling, or burning pain in your hands, arm, legs, or feet.
- Pale skin or pale lip color.
- Trouble breathing, wheezing, or cough with mucus.
- Unusual bleeding, bruising, or weakness.
If you notice these less serious side effects, talk with your doctor:
- Confusion, feeling restless or excited.
- Changes in your menstrual period.
- Mild skin rash, itching, or redness.
- Mild nausea, vomiting, constipation, diarrhea, loss of appetite, or stomach pain.
- Ringing in your ears, headache.
- Stuffy nose, dry mouth, nose, or throat.
- Trouble sleeping or weakness.
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
- Last reviewed on 8/4/2014
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