The Oramorph SR dosage you are prescribed will depend on various factors. For example, if you were taking an oral form of morphine, your dosage will be the same on a mg-per-mg basis each day. However, your dose of Oramorph SR will also be based on the severity of your pain and how you respond to the drug.
Oramorph Dosage: An IntroductionThe dose of Oramorph® SR (morphine sulfate ER) your healthcare provider recommends will vary, depending on a number of factors, including:
- How you respond to Oramorph SR
- The type and dose of other painkillers you have taken
- The type and severity of your pain
- Other medications you are taking
- Other medical conditions you may have.
As is always the case, do not adjust your dosage unless your healthcare provider specifically instructs you to do so.
Dose of Oramorph for PainThe starting dose of Oramorph SR your healthcare provider recommends will depend mostly on the dose and type of painkillers you were previously taking. For oral forms of morphine, a straight mg-per-mg conversion is recommended. Simply add up the total mg of morphine you take per day; this is the recommended total Oramorph SR daily dose, given as two or three doses per day. Oramorph SR should not be taken more frequently than every 8 hours or less frequently than every 12 hours.
If you are switching from any non-morphine painkillers or from injected morphine, your healthcare provider will need to convert your current dosage to an appropriate Oramorph SR dosage. It is often best to underestimate (rather than overestimate) the dose initially in order to avoid dangerous Oramorph SR side effects.
Your healthcare provider may also recommend a "rescue" medication (a short-acting painkiller) to use in addition to Oramorph SR for times when your pain is especially severe (known as "breakthrough pain," as it breaks through your baseline, long-acting painkiller). A rescue medication can be especially useful when you are first starting Oramorph SR, as many healthcare providers underestimate your initial morphine requirement in order to avoid dangerous side effects.