Guai-Dex Interactions
There are 367 drugs known to interact with Guai-Dex (dextromethorphan / guaifenesin), along with 1 alcohol/food interaction. Of the total drug interactions, 78 are major, 287 are moderate, and 2 are minor.
- View all 367 medications that may interact with Guai-Dex
- View Guai-Dex alcohol/food interactions (1)
Most frequently checked interactions
View interaction reports for Guai-Dex (dextromethorphan / guaifenesin) and the medicines listed below.
- acetaminophen
- amiodarone
- amoxicillin
- Artificial Tears (ocular lubricant ophthalmic)
- baclofen
- Benefiber (guar gum formulation) (guar gum)
- carbamazepine
- Coumadin (warfarin)
- Dantrium (dantrolene)
- Depo Provera (medroxyprogesterone)
- Diazepam Intensol (diazepam)
- ferrous sulfate
- fluconazole
- fludrocortisone
- fondaparinux
- glipizide / metformin
- lisinopril
- melatonin
- meloxicam
- mexiletine
- nystatin
- omeprazole
- phenol topical
- phenylephrine
- Pravachol (pravastatin)
- ranitidine
- simvastatin
- theophylline
- tizanidine
- VSL#3 (bifidobacterium infantis / lactobacillus acidophilus / streptococcus thermophilus)
Guai-Dex alcohol/food interactions
There is 1 alcohol/food interaction with Guai-Dex (dextromethorphan / guaifenesin).
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More about Guai-Dex (dextromethorphan / guaifenesin)
- Compare alternatives
- Side effects
- Dosage information
- During pregnancy
- 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. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.