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Information for the Patient: Do not crush or chew phenylephrine HCl w/ guaifenesin long acting tablets prior to swallowing.
Drug/Laboratory Test Interactions: Guaifenesin has been reported to interfere with clinical laboratory determinations of urinary 5-hydroxyindole-acetic acid (5-HIAA) and urinary vanillylmandelic acid (VMA).
Pregnancy: Pregnancy Category C. Animal reproduction studies have not been conducted with phenylephrine HCl w/guaifenesin long acting tablets. It is also not known whether phenylephrine HCl w/guaifenesin long acting tablets, can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Phenylephrine HCl w/guaifenesin long acting tablets, should be given to a pregnant woman only if clearly needed.
Nursing Mothers: It is not known whether the drugs in phenylephrine HCl w/guaifenesin long acting tablets, are excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the product, taking into account the importance of the drug to the mother.
Pediatric Use: Safety and effectiveness of phenylephrine HCl w/guaifenesin long acting tablets, in children below the age of 6 have not been established.
Last reviewed on RxList: 12/8/2004
This monograph has been modified to include the generic and brand name in many instances.
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