Question

what is the stem for dpp-4 inhibitors?
○ -gliflozin
○ -prazole
○ -glutide
○ -iptin

question 16
1 point
which of the following is not classified as a behind-the-counter (btc) drug?
○ cough syrups containing guaifenesin and codeine
○ advil, containing ibuprofen
○ sudafed, containing pseudoephedrine
○ bronchodilator inhaler, containing ephedrine

Explanation:

1. DPP-4 inhibitors, a class of diabetes medications, share the suffix "-iptin" (e.g., sitagliptin, linagliptin). The other suffixes belong to different drug classes: -gliflozin for SGLT2 inhibitors, -prazole for proton pump inhibitors, -glutide for GLP-1 receptor agonists.
2. Cough syrups with guaifenesin and codeine are prescription-only medications due to the controlled substance codeine. The other options are behind-the-counter drugs, which require pharmacy access but no written prescription.

Answer:

1. -iptin
2. Cough syrups containing guaifenesin and codeine