The nurse is preparing to administer medications to a 54-year old client. Which medications taken would be affected by the first-pass effect? (Select All that Apply.)

A. Chemical name:
The chemical name of a drug refers to its molecular structure and is often complex and technical, such as "2-(4-isobutylphenyl)propionic acid" for ibuprofen. This name is used primarily by chemists and is not typically used in clinical settings.

B. Generic name:
The generic name of a drug is its non-proprietary name, which is often simpler than the chemical name and is used universally to identify the drug regardless of the brand. For ibuprofen, the generic name is "ibuprofen." It is distinct from the brand name, which is a trademarked name used by manufacturers.

C. Nonproprietary name:
The term "nonproprietary name" is synonymous with the generic name. It refers to the drug's official, universally accepted name that is not associated with any specific brand. In this case, "ibuprofen" is the nonproprietary or generic name.

D. Brand name:
The brand name, also known as the trade name, is the name given by the manufacturer and is protected by trademark. "Motrin" is the brand name for ibuprofen. It is used in marketing and prescribing to differentiate it from other brands or generic forms of the same medication.

A. St. John's wort 450 mg by mouth twice daily: St. John's wort is known to be a potent inducer of cytochrome P450 enzymes and can significantly reduce the effectiveness of warfarin by increasing its metabolism. This interaction can lead to subtherapeutic levels of warfarin and an increased risk of thromboembolic events.

B. Gabapentin 400 mg by mouth twice daily: While gabapentin can interact with other medications, its interactions with warfarin or St. John's wort are generally not as significant as those between warfarin and St. John's wort.

C. Aspirin 81 mg by mouth daily: Aspirin has anticoagulant properties and can have interactions with warfarin. However, the interaction with St. John's wort is less pronounced compared to the interaction between warfarin and St. John's wort.

D. Atorvastatin 80 mg by mouth daily: Atorvastatin primarily affects lipid levels and has different metabolic pathways compared to warfarin. It does not have a strong interaction with St. John's wort.

E. Lisinopril 5 mg by mouth daily: Lisinopril is an ACE inhibitor and does not have significant interactions with St. John's wort or warfarin.

F. Warfarin 5 mg by mouth daily. Warfarin is an anticoagulant that requires careful monitoring due to its interactions with various substances that can either increase the risk of bleeding or decrease its effectiveness.

G. Ginger 5 mg by mouth daily: Ginger can affect platelet function but is not as significant in interaction with warfarin as St. John's wort.

H. Valerian 10 mg by mouth daily: Valerian may have mild interactions with central nervous system depressants but does not have significant interactions with warfarin or St. John's wort.