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. 2021 Aug 16;14(8):801. doi: 10.3390/ph14080801

Table 3.

Composition of LA-A solutions.

Local Anesthetic Dose (Volume) Adjuvant: Dose (Volume)
Isobaric Fentanyl 0.05 mg/mL 0.1% Morphine Isobaric Fentanyl + 0.1% Morphine
0.5% hyperbaric bupivacaine 7.5 mg
(1.5 mL)
25 µg
(0.5 mL)
2 mL 100 µg
(0.1 mL)
1.6 mL - -
10 mg
(2 mL)
10 µg
(0.2 mL)
2.2 mL 100 µg
(0.1 mL)
2.1 mL 10 µg + 100 µg
(0.2 mL) (0.1 mL)
2.3 mL
15 mg
(3 mL)
25 µg
(0.5 mL)
3.5 mL 100 µg
(0.1 mL)
3.1 mL - -
0.5% isobaric ropivacaine 7.5 mg
(1.5 mL)
25 ug
(0.5 mL)
2 mL 100 µg
(0.1 mL)
1.6 mL - -
15 mg
(3 ml)
25 ug
(0.5 mL)
3.5 mL 100 µg
(0.1 mL)
3.1 mL - -
2% hyperbaric prilocaine 40 mg
(2 mL)
25 ug
(0.5 mL)
2.5 mL 100 µg
(0.1 mL)
2.1 mL - -
60 mg
(3 mL)
25 ug
(0.5 mL)
3.5 mL - - - -
2% isobaric lidocaine 40 mg
(2 mL)
25 ug
(0.5 mL)
2.5 mL 100 µg
(0.1 mL)
2.1 mL - -
60 mg
(3 mL)
25 ug
(0.5 mL)
3.5 mL 100 µg
(0.1 mL)
3.1 mL - -