Check with your doctor before combining Allegra with erythromycin or ketoconazole. These drugs may increase Allegra’s effects.
Allow a little time between a dose of Allegra and antacids such as Maalox that contain aluminum and magnesium. This type of antacid can decrease Allegra’s effects.
Allegra-D should never be taken within 2 weeks of using an MAO-inhibitor drug such as the antidepressants isocarboxazid, phenelzine sulfate, and tranylcypromine sulfate. Also check with your doctor before combining it with the following:
Mecamylamine
Methyldopa
Reserpine
You should also avoid Allegra-D if you have a pacemaker and take digoxin. And you should not combine it with over-the-counter antihistamines and decongestants.
Allegra-D should not be taken with fruit juices; combining the two can induce wheals (small itchy swellings) and rash-like symptoms.
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Use Allegra-D with caution if you have high blood pressure, diabetes, heart disease, increased pressure in the eyes, prostate problems, or hyperthyroidism. Stop using it and check with your doctor if it causes nervousness, dizziness, or sleeplessness.
Some of the inactive ingredients in Allegra-D tablets may show up in your stools; this is normal and nothing to worry about.
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If Allegra or Allegra-D gives you an allergic reaction, avoid it in the future. Do not give either product to children under 6.
Do not take Allegra-D if you have glaucoma, urination problems, or severe high blood pressure or heart disease. Also avoid taking Allegra-D within 2 weeks of using an MAO-inhibitor drug such as Marplan, Nardil, or Parnate.
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Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Allegra.
- Side effects of Allegra may include:
Colds or flu, coughing, drowsiness, fatigue, fever, headache, indigestion, menstrual problems, nausea, pain including back or ear pain
- Side effects of Allegra-D may include:
Abdominal pain, agitation, anxiety, back pain, dizziness, dry mouth, headache, heart palpitations, indigestion, insomnia, nausea, nervousness, respiratory tract infection, throat irritation
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Take Allegra-D on an empty stomach with water. You can take regular Allegra with or without food. Allegra-D must be swallowed whole; do not chew or crush the tablet.
- If you miss a dose…
Take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take 2 doses at once.
- Storage instructions…
Store at room temperature. Protect blister packs from moisture.
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Seldane, an antihistamine related to Allegra, has been implicated in dangerous interactions with the common antibiotic erythromycin, the antifungal medication ketoconazole (Nizoral), and several similar drugs. Allegra poses no such risks. It is also safe for people with liver disease.
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Allegra relieves the itchy, runny nose, sneezing, and itchy, red, watery eyes that come with hay fever. It is also used to relieve the itching and welts of hives. Allegra is a type of antihistamine that rarely causes drowsiness.
In addition to the antihistamine in Allegra, Allegra-D also contains the nasal decongestant pseudoephedrine.
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Gastrointestinal
Gastrointestinal side effects have included nausea and dyspepsia in approximately 1.5% of patients.
Nervous system
Nervous system side effects have included drowsiness in 1.3% of patients. Dizziness and headache have also been reported.
Genitourinary
Genitourinary side effects have included dysmenorrhea at a rate of 1.3%.
Hypersensitivity
Hypersensitivity side effects have included rare reports of rash, urticaria, and pruritus. Other hypersensitivity reactions have included angioedema, chest tightness, dyspnea, flushing, and systemic anaphylaxis.
Respiratory
Respiratory side effects have included nasopharyngitis and upper respiratory tract infection.
Musculoskeletal
Musculoskeletal side effects have included myalgia, back pain, and pain in extremity.
Please note – some side effects for Allegra ODT may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).
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- If you have any questions about Allegra ODT Orally Disintegrating Tablets, please talk with your doctor, pharmacist, or other health care provider.
- Allegra ODT Orally Disintegrating Tablets are to be used only by the patient for whom it is prescribed. Do not share it with other people.
- Carry an identification card at all times that says you are taking Allegra ODT Orally Disintegrating Tablets.
This information is a summary only. It does not contain all information about Allegra ODT Orally Disintegrating Tablets. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.
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Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center ( http://www.aapcc.org), or emergency room immediately. Symptoms may include unusual or severe dizziness, drowsiness, or dry mouth.
Proper storage of Allegra ODT Orally Disintegrating Tablets:
Store Allegra ODT Orally Disintegrating Tablets between 68 and 77 degrees F (20 and 25 degrees C). Store away from heat, moisture, and light. Store in original packaging until just before use. Keep Allegra ODT Orally Disintegrating Tablets out of the reach of children and away from pets.
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