Alfentanil’s pKa ~6.5, much lower than fentanyl (~8.4) or morphine (~8.0)
At physiologic pH (7.4), ~90% of alfentanil exists in the unionised, lipid-soluble form → crosses the blood–brain barrier very rapidly
This explains why alfentanil has the fastest onset of action of any opioid
Alfentanil’s pKa ~6.5, much lower than fentanyl (~8.4) or morphine (~8.0)
At physiologic pH (7.4), ~90% of alfentanil exists in the unionised, lipid-soluble form → crosses the blood–brain barrier very rapidly
This explains why alfentanil has the fastest onset of action of any opioid
Heard grief has “5 stages” you must follow? Denial → anger → bargaining → depression → acceptance was never a rigid sequence. Kübler-Ross saw it in those facing terminal illness. You might skip, loop, or feel several at once. It’s a guide, not a timetable.
Heard grief has “5 stages” you must follow? Denial → anger → bargaining → depression → acceptance was never a rigid sequence. Kübler-Ross saw it in those facing terminal illness. You might skip, loop, or feel several at once. It’s a guide, not a timetable.
On opioids and can’t go? It’s not you, it’s your gut. Opioids slow bowel movement, dry out stool, and cut gut secretions. That’s a recipe for constipation – even with a great diet.
On opioids and can’t go? It’s not you, it’s your gut. Opioids slow bowel movement, dry out stool, and cut gut secretions. That’s a recipe for constipation – even with a great diet.
1️⃣ Exerts action through somatostatin receptor blockade
2️⃣️ Increases insulin secretion
3️⃣ Commonly causes hyperthyroidism
4️⃣ Increases variceal bleeding risk
5️⃣ Is labelled with technetium in nuclear medicine imaging
📊 Show results
1️⃣ Exerts action through somatostatin receptor blockade
2️⃣️ Increases insulin secretion
3️⃣ Commonly causes hyperthyroidism
4️⃣ Increases variceal bleeding risk
5️⃣ Is labelled with technetium in nuclear medicine imaging
📊 Show results
oxford.ly/4hG4C9B
oxford.ly/4hG4C9B