Table 4

Peak Changes in VAS Subjective Variables in Response to Inhaled l-Methamphetamine, IV phenylephrine and IV l-methamphetamine.

Measure
16 Inhalations
32 Inhalations
64 Inhalations
PE1
PE2
IV l-Meth
Overall P-Value

Any Drug Effect
9.0 (13.9)§||**
7.3 (10.5)§||**
9.8 (7.9)§||¶**
1.5 (2.1)
1.7 (2.4)
4.5 (8.6)
0.001
Bad Drug Effect
6.8 (13.7)
2.8 (4.6)
4.9 (5.0)
0.33 (0.9)
1.1 (0.79)
5.3 (10.7)
0.07
Dizziness
9.3 (14.0)§||¶**
6.5 (6.4)**
9.0 (13.5)§||¶**
1.5 (2.9)
0.92 (2.2)
-0.67 (5.7)
0.004
Good Drug Effect
5.8 (13.0)||**
5.7 (10.5)**
9.7 (13.0)§||¶**
0.42 (2.9)
0.25 (1.5)
2.7 (4.7)
0.005
Headache
5.1 (18.1)
4.8 (5.1)||
12.7 (17.0)§||¶**
-0.08 (1.7)
1.8 (3.3)
-3.8 (13.4)
0.02
Nasal Dryness
5.2 (16.2)
3.3 (9.6)
4.1 (9.9)
-0.75 (2.1)
-0.50 (1.7)
-0.42 (2.7)
0.20
Nasal Stuffiness
1.1 (16.9)
2.8 (4.8)
1.4 (6.7)
0.50 (4.4)
-1.6 (3.6)
0.42 (1.2)
0.88

Data presented as mean (SD).

PE1 = phenylephrine dose 1; PE2 = phenylephrine dose 2; IV l -Meth = IV l-methamphetamine

*= significantly greater than 16 inhalations

† = significantly greater than 32 inhalations

‡ = significantly greater than 64 inhalations

§ = significantly greater than PE1

|| = significantly greater than PE2

¶ significantly greater than IV l-methamphetamine

** = significantly greater than baseline

Mendelson et al. BMC Clinical Pharmacology 2008 8:4   doi:10.1186/1472-6904-8-4