Hydroxyzine/reference table

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 * style="font-size:15px; text-align: center;" | Onset and duration
 * Oral administration onset: 15-30 minutes
 * Suppression of wheal & flare response to allergenic skin extract: 4 days.
 * style="font-size:15px; text-align: center;" | Serum level
 * Pruritus: 6-42 μg/L (14-102 nmol/L) (Suppresses pruritus in children)
 * style="font-size:15px; text-align: center;" | Fate
 * style="font-size:15px; text-align: center;" | Serum level
 * Pruritus: 6-42 μg/L (14-102 nmol/L) (Suppresses pruritus in children)
 * style="font-size:15px; text-align: center;" | Fate
 * Pruritus: 6-42 μg/L (14-102 nmol/L) (Suppresses pruritus in children)
 * style="font-size:15px; text-align: center;" | Fate
 * style="font-size:15px; text-align: center;" | Fate

Peak serum level

 * Healthy adults -- 73 ± 11 μg/L occurs 2 ± 0.4 hr after a 0.7 mg/kg dose
 * Primary biliary cirrhosis'' -- 117 ± 61 μg/L at 2.3 ± 0.7 hr after 44mg mean dose

Vd

 * Children -- 19 ±9 L/kg
 * Healthy adults -- 16 ± 3 L/kg
 * Elderly -- 23 ± 6 L/kg
 * Primary biliary cirrhosis -- 23 ±13 L/kg

Cl

 * Children -- 1.9 L/hr/kg
 * Healthy young/elderly adults -- 0.6 ± 0.2 L/hr/kg
 * Primary biliary cirrhosis -- 0.5 ±0.4 L/hr/kg

t½

 * Children -- 7hr (increases with age)
 * Healthy adults -- 20 ± 4 hr
 * Elderly -- 29 ± 10 hr
 * Primary biliary cirrhosis -- 37 ±13 hr
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