Valtrex Interactions
There are 91 drugs known to interact with Valtrex (valacyclovir), along with 4 disease interactions. Of the total drug interactions, 23 are major, 62 are moderate, and 6 are minor.
- View all 91 medications that may interact with Valtrex
- View Valtrex disease interactions (4)
Most frequently checked interactions
View interaction reports for Valtrex (valacyclovir) and the medicines listed below.
- Adderall (amphetamine / dextroamphetamine)
- albuterol
- aspirin
- Benadryl (diphenhydramine)
- clonazepam
- Cymbalta (duloxetine)
- doxycycline
- Flexeril (cyclobenzaprine)
- Flonase (fluticasone nasal)
- gabapentin
- ibuprofen
- levothyroxine
- Lexapro (escitalopram)
- lisinopril
- Lyrica (pregabalin)
- melatonin
- metformin
- Nexium (esomeprazole)
- omeprazole
- prednisone
- Singulair (montelukast)
- Synthroid (levothyroxine)
- tramadol
- trazodone
- Tylenol (acetaminophen)
- Vitamin B12 (cyanocobalamin)
- Vitamin C (ascorbic acid)
- Vitamin D3 (cholecalciferol)
- Xanax (alprazolam)
- Zyrtec (cetirizine)
Valtrex disease interactions
There are 4 disease interactions with Valtrex (valacyclovir) which include:
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More about Valtrex (valacyclovir)
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- Drug class: purine nucleosides
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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.
