Back Pain Home > Morphine Sulfate Dosage

Your healthcare provider will consider several factors before recommending a dosage of morphine sulfate for you. For example, the dosage you receive will be based on other medications you are taking, the type and severity of your pain, and the dose of other painkillers you have taken. In general, your healthcare provider will likely start you on a low dosage, and increase the dose as needed.

Dosage of Morphine Sulfate: An Introduction

The drug dosage your healthcare provider recommends will vary, depending on a number of factors, including:
  • The particular morphine sulfate product
  • How you respond to morphine sulfate
  • 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.

Morphine Sulfate Dosing for Pain

There is great variation in the dosage of morphine sulfate that can be tolerated and that will effectively relieve pain, depending on several factors. People who have taken morphine sulfate or other similar medications for a long time may need (and may tolerate) large morphine sulfate doses. Also, some people seem to naturally be more sensitive to morphine sulfate than others.
Most likely, your healthcare provider will start you on a low dose of a short-acting morphine sulfate product and increase your dose as necessary and as tolerated. Once you are on a stable dose (if continued pain control is needed), you may be switched to a longer-acting product. Short-acting products are usually taken every four hours as needed for pain, while long-acting products are taken every 8, 12, or 24 hours around-the-clock (depending on the particular product).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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