Biological Sciences and Healthcare, part 3

... > Substance > Drug or medicament (substance) > Central nervous system agent (substance) > Stimulant (substance) > Psychostimulant (substance) > Caffeine

... > Substance > Drug or medicament (substance) > Central nervous system agent (substance) > Psychoactive substance (substance) > Psychotropic agent (substance) > Psychostimulant (substance) > Caffeine

... > Substance > Substance categorized by disposition > Substance with effector mechanism of action (substance) > Enzyme inhibitor (substance) > Hydrolase inhibitor (substance) > Phosphodiesterase inhibitor (substance) > Caffeine

Substance > Drug or medicament (substance) > Respiratory system agent (substance) > Methyl xanthine > Caffeine

... > Substance > Substance categorised structurally > Chemical > Chemical categorised structurally > Organic chemical > Organic nitrogen compound > Purine and derivatives > Xanthine and xanthine derivative (substance) > Xanthine derivative (substance) > Methyl xanthine > Caffeine

... > Substance > Substance categorised structurally > Chemical > Chemical categorised structurally > Nitrogen and nitrogen compound (substance) > Nitrogen compound > Organic nitrogen compound > Purine and derivatives > Xanthine and xanthine derivative (substance) > Xanthine derivative (substance) > Methyl xanthine > Caffeine

... > Substance > Substance categorised structurally > Chemical > Chemical categorised structurally > Organic chemical > Organic cyclic compound > Heterocyclic compound > Purine and derivatives > Xanthine and xanthine derivative (substance) > Xanthine derivative (substance) > Methyl xanthine > Caffeine

... > Substance > Substance categorised structurally > Chemical > Chemical categorised structurally > Organic chemical > Organic cyclic compound > Heterocyclic compound > Alkaloid (substance) > Xanthine and xanthine derivative (substance) > Xanthine derivative (substance) > Methyl xanthine > Caffeine