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Fentanyl, like most opiates, actually reduces your blood pressure. Being both a vasodilator (opens the blood vessels) and a depressant, opiates relax the body, and with the blood vessels open wider, blood flows more easily. This is also why you feel cold when the dosage gets low - the blood vessels are constricting.

Of course if you have serious issues in your arteries or veins like plaque, etc., or have high blood pressure to begin with, it might not help, but in most cases it won't affect it unless the patient isn't tolerant or is allergic. That's rarely the case since Fentanyl isn't prescribed for those who aren't already using a lower dosage of opiate by oral means.

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14y ago
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14y ago

Actually they tend to lower it. Opiates are vasodilators, meaning they open the blood vessels (that's why you feel cold during withdrawals - the blood vessels constrict) wider, allowing for easier blood flow throughout the body.

All people are different though, so it's not germane to everyone.

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11y ago

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