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Phenergan Drug Interactions

Other Medications That Cause Drowsiness
Check with your healthcare provider before taking Phenergan with any other medication that also causes drowsiness, as undesirable side effects (such as excessive drowsiness, dizziness, or confusion) may result.
 
In addition, the dosage of opioids (such as morphine) can usually be reduced significantly, often by as much as 25 to 50 percent, when combined with Phenergan. Similarly, the dose of barbiturates should be reduced by approximately 50 percent when combined with Phenergan.
 
Pramlintide
Both pramlintide and anticholinergic medications (including Phenergan) can slow down the movement of food through the digestive tract. Taking them together can increase the risk of constipation or nausea. Talk with your healthcare provider before combining these medications.
 

Final Thoughts on Phenergan Drug Interactions

Not all interactions were discussed in this article. Therefore, you should talk with your pharmacist or healthcare provider about any specific drug interactions with Phenergan that may apply to you.
 
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Phenergan Drug Information

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