Buprenorphine
3 sourced formulations across 2 routes.
3 sources
Sublingual
Low-dose analgesic sublingual tablet
Transdermal
7-day transdermal patch, 96-hour transdermal patch
Opioid medicine reference
Review formulation-specific pharmacology, conversion factors, limitations, and original sources for medicines included in OpioidCalc.
For qualified healthcare professionals. These pages describe specific formulations and jurisdictions. They are not prescribing instructions. Check the cited product information, local guidance, and the individual patient before use. Read the conversion evidence and limitations.
Showing 14 of 14 medicines
Codeine
3 sourced formulations across 2 routes.
3 sources
Oral
Immediate-release tablet, Immediate-release oral solution
Parenteral
Subcutaneous or intramuscular injection, Continuous parenteral infusion
Dihydrocodeine
1 sourced formulation across 1 route.
1 source
Oral
Modified-release tablet
Fentanyl
3 sourced formulations across 2 routes.
2 sources
Parenteral
Intravenous injection, Intramuscular injection, Continuous parenteral infusion
Transdermal
72-hour transdermal patch
Hydrocodone
4 sourced formulations across 1 route.
4 sources
Oral
Immediate-release tablet, Immediate-release oral solution, Modified-release capsule, Modified-release tablet
Hydromorphone
5 sourced formulations across 2 routes.
3 sources
Oral
Immediate-release tablet, Immediate-release oral solution, Modified-release tablet
Parenteral
Intravenous injection, Subcutaneous injection, Continuous parenteral infusion
Methadone
4 sourced formulations across 1 route.
4 sources
Oral
Tablet, Oral solution, Oral concentrate, Dispersible tablet for oral suspension
Morphine
6 sourced formulations across 2 routes.
6 sources
Oral
Immediate-release tablet, Immediate-release oral solution, Modified-release tablet, Once-daily biphasic modified-release capsule, Polymer-coated pellet modified-release capsule
Parenteral
Intramuscular injection, Intravenous injection, Subcutaneous injection, Continuous parenteral infusion
Oxycodone
7 sourced formulations across 3 routes.
6 sources
Oral
Immediate-release tablet, Immediate-release oral solution, Modified-release tablet, Oxycodone/naloxone modified-release tablet
Parenteral
Subcutaneous injection, Intravenous injection, Continuous parenteral infusion
Rectal
30 mg rectal suppository
Oxymorphone
2 sourced formulations across 1 route.
2 sources
Oral
Immediate-release tablet, Modified-release tablet
Sufentanil
1 sourced formulation across 1 route.
1 source
Parenteral
Intravenous injection, Continuous parenteral infusion
Tapentadol
3 sourced formulations across 1 route.
3 sources
Oral
Immediate-release tablet, Immediate-release oral solution, Modified-release tablet
Tilidine/Naloxone
2 sourced formulations across 1 route.
2 sources
Oral
Immediate-release oral drops, Modified-release tablet
Tramadol
4 sourced formulations across 1 route.
4 sources
Oral
Immediate-release tablet, Immediate-release oral solution, Modified-release tablet, Modified-release capsule
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