- Gabamerck
- Gabapentina
- Gabatur
- Gabitril
- Galaxdar
- Galusan
- Galvus
- Gamma Antihep D Grifols
- Gamma Antitetanos Grifols
- Gammaglobulina Antihep B
- Garcinia Cambogia
- Gardasil
- Gardenal
- Garydol
- Gastrimut
- Gastrodenol
- Gastrodomina
- Gastromol
- Gavindol
- Gaviscon Forte
- Gaviscon Original
- Gelcen
- Gelidina
- Gelobufen
- Gelocatil
- Gelocatil Codeina
- Gelocatil Infantil
- Gelodrox
- Gelofeno
- Gelofeno Infantil
- Gelogrip
- Gelosim
- Gemfibrozilo
- Genoxal
- Genprol
- Genta Gobens
- Gerbin
- Gericin
- Germisdin Higiene Corporal
- Gestinyl
- Gevramycin
- Gevramycin Topica
- Gine Canesten
- Gine Zalain
- Gine-Canesmed
- Ginecrin Depot
- Ginedermofix
- Ginedermofix Vaginal
- Gineseda
- Ginkgo Biloba Orto
- Glauconide
- Glaucotensil
- Glicerol Vilardell
- Gliclazida Merck EFG
- Glimepirida
- Glivec
- Glizolan
- Globuce
- Glucagen Hipokit
- Glucantime
- Glucobay
- Glucolon
- Glucosamina
- Glumida
- Glurenor
- Glutaferro
- Glutasey
- Gobanal
- Gobemicina
- Gobemicina Retard
- Gonacor
- Gonal F
- Gonapeptyl Depot
- Gopten
- Gotu kola
- Granisetron Teva EFG
- Grisetin
- Guastil
- Gutalax
- Gyneplen
- Gynophilus
