Allegra D (Fexofenadine HCl and Pseudoephedrine HCl)

Allegra D Review

Allegra-D is indicated for the relief of symptoms associated with seasonal allergic rhinitis in adults and children 12 years of age and older. Symptoms treated effectively include sneezing, rhinorrhea, itchy nose/palate/ and/or throat, itchy/watery/red eyes, and nasal congestion.

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Allegra D Drug Class and Mechanism

Allegra D Uses

Fexofenadine hydrochloride (brand names include Allegra and Telfast) is an antihistamine drug used in the treatment of hayfever and similar allergy symptoms. It was developed as a successor of and alternative to terfenadine (brand names include Triludan and Seldane), an antihistamine with potentially serious contraindications. Fexofenadine, like other second and third-generation antihistamines, does not readily enter the brain from the blood, and so causes less drowsiness than first-generation histamine-receptor antagonists. It works by being an antagonist to the H1 receptor.For seasonal allergies the recommended dose for adults and children 12 years or older is 60 mg twice daily or 180 mg once daily. Children 6-11 years of age should be given 30 mg twice daily. For chronic urticaria, adults and children 12 years or older should use 60 mg twice daily, and children 6-11 years of age should use 30 mg twice daily. Take Fexofenadine with water (not fruit juice).

Allegra D Side Effects

Nausea, stomach upset, trouble sleeping, headache, or cold symptoms may occur. If these persist or worsen, notify your doctor promptly. Unlikely but report promptly: dizziness, mental/mood changes, fast heartbeat, fever. Tell your doctor immediately if any of these highly unlikely but very serious side effects occur: fainting, irregular heartbeat. Although drowsiness is very uncommon at usual doses under normal circumstances, be aware that drowsiness may occur and may affect the ability to perform tasks requiring alertness (e.g., driving). If you notice other effects not listed above, contact your doctor or pharmacist.

Allegra D Pregnancy

Allegra D Overdose

Reports of fexofenadine overdose are infrequent, and because of this, the effects are not well established. No deaths occurred in testing on mice, at 5000 mg/kg, which is 110 times the maximum recommended dose for an adult human. Further research shows no deaths in rats at the same concentration, which equates four hundred times the recommended dose in an adult human. Research on humans ranges from a single 800 mg dose, to a twice-daily 690 mg dose for a month, with no clinically significant adverse effects, when compared to a placebo.

Allegra D More Information

Use caution when driving, operating machinery, or performing other hazardous activities. Allegra-D may cause dizziness. Some less serious side effects may be more likely to occur. Continue to take fexofenadine and talk to your doctor if you experience nausea or an upset stomach.