Table 2.
Antihistamines commonly used and indicated for the treatment of urticaria
| Second-generation H1-receptor antihistamines | Standard adult dose (mg daily) | 4 times standard adult dose (mg daily) | Usual pediatric dose |
|---|---|---|---|
| Cetirizine (Reactine) | 10–20 | 40 | 5–10 mL (1–2 teaspoons) daily (children’s formulation) |
| Desloratadine (Aerius) | 5 | 20 | 2.5–5 mL (0.5–1.0 teaspoon) daily (children’s formulation) |
| Fexofenadine (Allegra) | 120 | 480 | Not currently indicated for children under 12 years of age |
| Loratadine (Claritin) | 10 | 40 | 5–10 mL (1–2 teaspoons) daily (children’s formulation) |
| Bilastine (Blexten) | 20 | 80 | Not currently indicated for children under 12 years of age |
| Rupatadine (Rupall) | 10 | 40 | 5–10 mL (1–2 teaspoons) daily (children’s formulation) |