ATC code L03
{{ATC codes lead|L|03|Immunostimulants|vet=add}}
{{anchor|L03A}}L03A Immunostimulants
={{anchor|L03AA}}L03AA Colony stimulating factors=
:L03AA02 Filgrastim
:L03AA03 Molgramostim
:L03AA09 Sargramostim
:L03AA10 Lenograstim
:L03AA12 Ancestim
:L03AA13 Pegfilgrastim
:L03AA14 Lipegfilgrastim
:L03AA15 Balugrastim
:L03AA16 Empegfilgrastim
:L03AA17 Pegteograstim
:L03AA18 Efbemalenograstim alfa
:L03AA19 Eflapegrastim
:QL03AA90 Pegbovigrastim
={{anchor|L03AB}}L03AB Interferons=
:L03AB01 Interferon alfa natural
:L03AB02 Interferon beta natural
:L03AB03 Interferon gamma
:L03AB04 Interferon alfa-2a
:L03AB05 Interferon alfa-2b
:L03AB06 Interferon alfa-n1
:L03AB07 Interferon beta-1a
:L03AB08 Interferon beta-1b
:L03AB09 Interferon alfacon-1
:L03AB10 Peginterferon alfa-2b
:L03AB11 Peginterferon alfa-2a
:L03AB12 Albinterferon alfa-2b
:L03AB13 Peginterferon beta-1a
:L03AB14 Cepeginterferon alfa-2b
:L03AB15 Ropeginterferon alfa-2b
:L03AB16 Peginterferon alfacon-2
:L03AB17 Sampeginterferon beta-1a
:L03AB60 Peginterferon alfa-2b, combinations
:L03AB61 Peginterferon alfa-2a, combinations
:QL03AB90 Interferom omega, feline origin
={{anchor|L03AC}}L03AC Interleukins=
:L03AC01 Aldesleukin
:L03AC02 Oprelvekin
={{anchor|L03AX}}L03AX Other immunostimulants=
:L03AX01 Lentinan
:L03AX02 Roquinimex
:L03AX03 BCG vaccine
:L03AX04 Pegademase
:L03AX05 Pidotimod
:L03AX07 Poly I:C
:L03AX08 Poly ICLC
:L03AX09 Thymopentin
:L03AX10 Immunocyanin
:L03AX11 Tasonermin
:L03AX12 Melanoma vaccine
:L03AX13 Glatiramer acetate
:L03AX14 Histamine dihydrochloride
:L03AX15 Mifamurtide
:L03AX16 Plerixafor
:L03AX17 Sipuleucel-T
:L03AX18 Cridanimod
:L03AX19 Dasiprotimut-T
:L03AX21 Elapegademase
:L03AX22 Leniolisib
:L03AX23 Motixafortide
:L03AX24 Mavorixafor
:QL03AX90 Feline interleukin-2 recombinant canarypox virus (viral vector)