Lidocaine/Lignocaine Flashcards
1
Q
What are the pharmacological properties of lidocaine/lignocaine?
A
Highly lipophilic, therefore rapidly absorbed and short onset of action
2
Q
What is the metabolism of lidocaine/lignocaine?
A
Hepatic 95%
3
Q
What is the elimination half life of lidocaine/lignocaine?
A
90-120minutes
4
Q
What is the onset of action of lidocaine/lignocaine?
A
2-3minutes
5
Q
What is the duration of action for lidocaine/lignocaine?
A
- -60-90 minutes pulp
- -60-120 minutes soft tissues
- with vasoconstrictor
6
Q
What are the preparations and proprietary names?
A
- 2% lignocaine with 1:80 000 adrenaline Xylocaine © (most versatile and commonly used)
- 2% lignocaine with 1:100 000 Nurocain ©
- 2% lignocaine plain
7
Q
What are the dosages for lidocaine/lignocaine?
A
7mg/kg absolute max (500mg adult) for 2% lignocaine with 1:80 000 adrenaline Xylocaine ©
8
Q
Indications for lidocaine and lignocaine?
A
Majority of dental LA
9
Q
What are the contraindications of lignocaine?
A
Adrenal Tumors, Uncontrolled Diabetes,
medical conditions
