|
The narcotic analgesic converter is based on the following table: | ||||
| Drug | Duration | Half-life | Route | Equianalgesic Dosage |
|
Codeine |
4–6 h |
3 h |
IM |
120 mg |
|
|
|
|
PO |
200 mg |
|
Fentanyl |
1–2 h |
1.5–6 h |
IM |
0.1 mg |
|
Hydrocodone |
4–8 h |
3.3–4.5 h |
PO |
30 mg |
|
Hydromorphone |
4–5 h |
2–3 h |
IM |
1.3–1.5 mg |
|
|
|
|
PO |
7.5 mg |
|
Levorphanol |
6–8 h |
12–16 h |
IM |
2 mg |
|
|
|
|
PO |
4 mg |
|
Meperidine |
2–4 h |
3–4 h |
IM |
75 mg |
|
|
|
|
PO |
300 mg |
|
Methadone |
4–6 h |
15–30 h |
IM |
10 mg |
|
|
|
|
PO |
10–20 mg |
|
Morphine |
3–7 h |
1.5–2 h |
IM |
10 mg |
|
|
|
|
PO |
30–60 mg |
|
Oxycodone |
4–6 h |
NA |
PO |
15-30 mg |
|
Oxymorphone |
3–6 h |
NA |
IM |
1 mg |
|
|
|
|
PR |
10 mg |
|
Propoxyphene |
4–6 h |
6–12 h |
PO |
130-200 mg |
|
*Propoxyphene HCL: 130mg; Napsylate: 200mg. Not recommended for chronic pain. | ||||