| 11. | Paracetamol is sometimes combined with phenylephrine hydrochloride.
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| 12. | The surgeon instructed a nurse to instill phenylephrine drops in the nose to help stop bleeding.
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| 13. | Pseudoephedrine acts indirectly on the adrenergic receptor system, whereas phenylephrine and oxymetazoline are direct agonists.
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| 14. | Phenylephrine hydrochloride at 0.25 % is used as a vasoconstrictor in some suppository formulations.
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| 15. | Tropicamide and phenylephrine are used in medicine as mydriatics to dilate pupils for retinal and lens examination.
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| 16. | Because of its vasoconstrictive effect, phenylephrine can cause severe necrosis if it infiltrates the surrounding tissues.
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| 17. | For example, pseudoephedrine is taken orally and phenylephrine is topically applied to the nasal passages or eyes.
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| 18. | Pseudoephedrine and loratadine-montelukast therapy were found to be significantly more effective than both phenylephrine and placebo.
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| 19. | Drugs that may decrease the effects of phenylephrine may include calcium channel blockers, ACE inhibitors and benzodiazepines.
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| 20. | Patients taking these medications may need a higher dose of phenylephrine to achieve a comparable increase in blood pressure.
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