clarithromycin is a lipid of Polyketides (PK) class. Clarithromycin is associated with abnormalities such as Helicobacter Pylori Infection, Infection, Coinfection, Gastritis and Peptic Ulcer. The involved functions are known as Point Mutation, Increased Sensitivy, Bacterial resistance, urease activity and Mutation. Clarithromycin often locates in Blood, Gastric mucosa, Biopsy sample, Respiratory System and Entire gastrointestinal tract. The associated genes with clarithromycin are Genes, rRNA, rRNA Operon, Genome, HM13 gene and GDF15 gene. The related lipids are 9,11-linoleic acid, Steroids, Lysophosphatidylcholines, Lipopolysaccharides and 4-hydroxycholesterol. The related experimental models are Mouse Model, Knock-out and Experimental Pneumococcal Meningitis.