TABLE 1 .

In vitro assessment of potential transport inhibitors

Compound tested, concn (µg/ml)	% reduction in ATP vs. untreated control after 72 h
Lithium chloride
500	0
250	0
125	0
62.5	0
l-Fucose
1,000	0
100	0
10	0
1	2.55
0.1	3.37
Valproate
100	11.68
10	1.91
1	20.62
0.1	13.73
Amitriptyline
100	99.61
10	98.76
1	4.37
0.1	0
Carbamazepine
100	69.30
10	6.41
1	0.07
0.1	0