Guaifenex Interactions
There are 241 drugs known to interact with Guaifenex (guaifenesin/phenylephrine/phenylpropanolamine), along with 5 disease interactions, and 1 alcohol/food interaction. Of the total drug interactions, 59 are major, 178 are moderate, and 4 are minor.
- View all 241 medications that may interact with Guaifenex
- View Guaifenex alcohol/food interactions (1)
- View Guaifenex disease interactions (5)
Most frequently checked interactions
View interaction reports for Guaifenex (guaifenesin / phenylephrine / phenylpropanolamine) and the medicines listed below.
- acetaminophen
- acetaminophen
- albuterol
- albuterol
- amlodipine
- amlodipine
- azithromycin
- azithromycin
- cetirizine
- cetirizine
- citalopram
- citalopram
- clonazepam
- clonazepam
- Flonase (fluticasone nasal)
- Flonase (fluticasone nasal)
- fluconazole
- fluconazole
- folic acid
- folic acid
- gabapentin
- gabapentin
- levothyroxine
- levothyroxine
- metformin
- metformin
- Milk of Magnesia (magnesium hydroxide)
- Milk of Magnesia (magnesium hydroxide)
- Vitamin D3 (cholecalciferol)
- Vitamin D3 (cholecalciferol)
Guaifenex alcohol/food interactions
There is 1 alcohol/food interaction with Guaifenex (guaifenesin / phenylephrine / phenylpropanolamine).
Guaifenex disease interactions
There are 5 disease interactions with Guaifenex (guaifenesin / phenylephrine / phenylpropanolamine) which include:
Report options
More about Guaifenex (guaifenesin / phenylephrine / phenylpropanolamine)
- Guaifenex consumer information
- Compare alternatives
- Side effects
- Drug class: upper respiratory combinations
Related treatment guides
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
| No interaction information available. |
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.