Can the Switch card be used to retreat a Paralyzed, Confused, or Sleeping Pokémon?
Yes, you can use a Switch card to retreat a Confused, Asleep or Paralyzed Pokémon.
Source: WotC Chat (2000-02-03)

Relevant cards

Note: All applicable cards may not be listed below.
WOTCB1_95
WOTCB2_123
WOTCB2_123
BW1_104
BW7_135
DP1_119
DP3_128
DP7_93
EX1_92
EX11_102
EX15_83
EX6_102
HGSS1_102
SM1_132
SM1_160
SM35_67
SM7_147
SWSH1_183
SWSH1_183
TK4-Gyarados_28
TK4-Gyarados_28
TK4-Raichu_24
TK4-Raichu_24
TK6-Noivern_29
TK6-Sylveon_4
WOTCE1_157
XY0_38
XY12_88
XY5_163
XY6_91