Table 4.

Comparison of MAMP and AMP mass per patch in duplicate weekly sweat patches with corresponding cumulative mass per patch in hourly patches covering the same MAMP administration period.

	Methamphetamine, ng/patch					Amphetamine, ng/patch
Subject	Weekly patch 1	Weekly patch 2	Mean	Hourly sum	Difference	Weekly patch 1	Weekly patch 2	Mean	Hourly sum	Difference
Low dose
1	56.9	—	—	69.6	12.7	21.0	—	—	6.5	−14.5
2	175	121	148	431	283	40.5	21.7	31.1	64.9	24.4
3	73.2	58.3	65.8	103	36.8	32.5	27.3	29.9	38.8	6.3
4	16.8	—	—	11.2	−5.6	6.5	—	—	0.0	−6.5
5	38.2	28.3	33.3	27.1	−6.2	7.1	8.6	7.9	0.0	−7.1
6	44.9	63.0	54.0	73.2	19.3	7.6	10.9	9.3	0.0	−7.6
7	131	115	123	207	83.8	15.9	15.0	15.5	16.0	0.1
8	0.0	72.9	36.5	102	66.0	16.1	13.3	14.7	10.4	−5.7
High dose
1	199	—	—	250	50.8	34.0	—	—	19.8	−14.2
3	307	303	305	149	−156	83.4	82.3	82.9	189	106
5	0.0	0.0	0.0	229	229	0.0	0.0	0.0	42.4	42.4
7	607	322	465	1106	641	66.6	40.9	53.8	133	66.1