Table 4.

Hematologic toxicities experienced on hydroxyurea therapy

Patient no.	Age at toxicity (years)	Dose‐limiting toxicity	Hydroxyurea dose at toxicity (mg/kg)
1	12.1	ANC 580 × 106/L	n/a
5	10.4	Platelets 61 × 109/L	15.6
6	11.7	Platelets 52 × 109/L	10
7	10.0	Platelets 55 × 109/L	12
9	18.7	Platelets 22 × 109/L	21
10	8.2	ANC 730 × 106/L Platelets 59 × 109/L	14
11	14.5	Platelets 56 × 109/L	20

n/a, not available.