Interactions between acyclovir and Choledyl (oxtriphylline)
acyclovir and oxtriphylline (Minor Drug-Drug)
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.