Hirudin
Hexobarbitone (Hexobarbital)
Tobinal
Hexamethylenetetramine (Hexamine) (Methenamine)
Hiprex, Mandelamine
Hexamine (Methenamine) (Hexamethylenetetramine)
Hiprex, Mandelamine
Hexobarbital (Hexobarbitone)
Tobinal
Heroin
Halofantrine
Halfan
Haloperidol
Haldol
Heparin
H1N1 vaccine (Influenza vaccine)
Influenza A