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Precautions and Warnings With Propoxyphene Napsylate

Specific Propoxyphene Napsylate Warnings and Precautions

Some warnings and precautions to be aware of prior to taking propoxyphene napsylate include the following:
  • An overdose (either accidental or intentional) with propoxyphene napsylate can be extremely dangerous. In some cases, an overdose can be lethal within 15 minutes. Make sure to follow your propoxyphene napsylate dosage instructions carefully, and do not exceed the recommended amount. Because it is so dangerous in the case of an overdose, this medicine should be prescribed with caution for people with depression or suicidal tendencies (see Darvon-N Overdose for more information).
  • Propoxyphene napsylate contains a narcotic medication and has some potential for abuse. It is not a good choice for people who have a history of alcohol or drug abuse. Do not take the drug more frequently, longer, or at a higher dose than prescribed. If you feel you may be developing a problem with propoxyphene napsylate, please seek help from your healthcare provider.
  • This drug can cause slow and irregular breathing, especially at high doses. In severe situations, this may lead to life-threatening complications. This may be especially dangerous in people with lung problems.
  • Do not drive or operate heavy machinery until you know how this medication affects you. Your reflexes and reaction times may be significantly affected, even if you feel fine.
  • The medication can cause problems in people with head injuries or high intercranial pressure. Propoxyphene napsylate should only be used with extreme caution in such circumstances.
  • Propoxyphene napsylate can cause a decrease in blood pressure, which can be especially dangerous if you already have low blood pressure or are prone to low blood pressure. Let your healthcare provider know if you experience signs of this condition, such as lightheadedness, dizziness, or fainting.
  • Like any other narcotic, propoxyphene napsylate can cause dizziness and drowsiness, and may increase the risk of falls in elderly people.
  • Propoxyphene napsylate can potentially interact with several other medications (see Drug Interactions With Propoxyphene Napsylate).
  • Propoxyphene napsylate is considered a pregnancy Category C medication. This means that it may not be safe for use during pregnancy, although the full risks are not currently known (see Darvon-N and Pregnancy).
  • Propoxyphene napsylate passes through breast milk. Therefore, if you are breastfeeding or plan to start, discuss this with your healthcare provider prior to taking the drug (see Darvon-N and Breastfeeding).
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Propoxyphene Napsylate Drug Information

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