Drug Interaction Report
1 potential interaction and/or warning found for the following 2 drugs:
- oxtriphylline
- Sitavig (acyclovir)
Interactions between your drugs
acyclovir oxtriphylline
Applies to: Sitavig (acyclovir), oxtriphylline
Limited data suggest that the combination of a methyl xanthine with acyclovir may lead to elevated theophylline levels potentiating pharmacologic and adverse effects. The mechanism may be due to inhibition of theophylline oxidative metabolism. Clinical and laboratory monitoring is warranted if these agents are given concurrently. Patients receiving this combination should be advised to report any signs of theophylline toxicity including nausea, vomiting, diarrhea, headache, restlessness, insomnia, or irregular heartbeat to their physician.
References (1)
- Maeda Y, Konishi T, Omoda K, Takeda Y, Fukuhara S, Fukuzawa M, Ohune T, Tsuya T, Tsukiai S (1996) "Inhibition of theophylline metabolism by aciclovir." Biol Pharm Bull, 19, p. 1591-5
Drug and food interactions
No alcohol/food interactions were found with the drugs in your list. However, this does not necessarily mean no food interactions exist. Always consult your healthcare provider.
Therapeutic duplication warnings
No duplication warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
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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
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