Editing Pharmacokinetics (section)

== <span style="color: #FFFFFF;">Analyzing</span> ==
{| class="wikitable"
|+ IV Injection vs. Oral Pill
! Feature !! IV Injection !! Oral Pill
|-
| Absorption Speed || Instant (0 seconds) || Slow (20-60 minutes)
|-
| Bioavailability || 100% || Varies (usually 10-70%)
|-
| First-Pass Effect || Bypassed (Safe from Liver) || High (Liver attacks it)
|-
| Best For || Emergencies / Pain || Daily maintenance
|}

'''The Concept of "Volume of Distribution" (Vd)''': Analyzing where the drug "Hides." If a drug likes "Fat," it will disappear into your body fat and stay there for weeks (High Vd). If it likes "Water," it stays in your blood and is peed out quickly (Low Vd). Knowing "Where the drug goes" is essential for setting the dose.
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