Allergy Relief (Fexofenadine HCl)

Generic name: Fexofenadine HCl

Drug class: Antihistamines

Dosage form: Tablets (30 mg, 60 mg, 180 mg), orally disintegrating tablets (30 mg), oral suspension (6 mg/mL)

Root of administration: Oral

Dose:

• Adults and children 12 years and older: 60 mg twice daily or 180 mg once daily
• Children 6 to 11 years: 30 mg twice daily
• Children under 6 years: Dosage should be determined by a physician

Mechanism of action: Fexofenadine is a selective peripheral H1-receptor antagonist that competitively binds to H1 receptors, inhibiting histamine-induced effects such as vasodilation, increased vascular permeability, and smooth muscle contraction, thereby reducing allergic symptoms.

Drug usage cases:

• Seasonal allergic rhinitis (hay fever)
• Perennial allergic rhinitis
• Chronic idiopathic urticaria (hives)

Drug contraindications:

• Hypersensitivity to fexofenadine or any component of the formulation

Side effects:

• Headache
• Drowsiness
• Dizziness
• Nausea
• Dry mouth
• Fatigue
• Back pain
• Muscle pain
• Menstrual cramps
• Insomnia
• Anxiety
• Pharyngitis
• Upper respiratory tract infection
• Fever
• Otitis media in children aged 6 to 11 years

Warnings:

• Do not exceed the recommended dose
• Avoid taking with aluminum or magnesium-containing antacids
• Avoid taking with fruit juices (e.g., orange, grapefruit, or apple juice) as they may reduce absorption
• Use caution in patients with kidney disease; dosage adjustment may be necessary
• Not recommended for use in children under 6 years; consult a physician for appropriate dosing
• Use caution in elderly patients; consult a physician for appropriate dosing
• Discontinue use and seek medical attention if an allergic reaction occurs
• Consult a healthcare professional before use if pregnant or breastfeeding
• Keep out of reach of children
• In case of overdose, seek immediate medical attention or contact a Poison Control Center

Use during pregnancy or breastfeeding: Fexofenadine should be used during pregnancy or breastfeeding only if clearly needed. Consult a healthcare professional before use to assess potential risks and benefits.