| Name | Aliases |
|---|---|
| Grifulvin V (Griseofulvin) | |
| Griseofulvin (Grifulvin V) | |
| Guaifenesin (Mucinex) | |
| Guaifenesin / L-Menthol (Benylin Syrup) | Benylin Chesty Non Drowsy Mixture Syrup |
| Guanfacine Hydrochloride (Intuniv) | Intuniv PR, Intuniv XR |
| GUM Paroex (Chlorhexidine Gluconate) | Peridex, Peridex Oral Rinse, Periogard |
| Guselkumab (Tremfya) |