Drug Interaction Report
2 potential interactions and/or warnings found for the following 2 drugs:
- ropivacaine
- Stay Awake (caffeine)
Interactions between your drugs
caffeine ROPivacaine
Applies to: Stay Awake (caffeine), ropivacaine
Ropivacaine serum concentrations may increase when given with drugs metabolized by the CYP450 isoenzyme 1A2. The theorized mechanism is via competitive inhibition. Information is only available from in-vitro studies. The clinical significance is unknown. Consider monitoring the patient more closely for prolonged or excessive ropivacaine effects if these agents are coadministered.
References (1)
- (2001) "Product Information. Naropin (ropivacaine)." Astra-Zeneca Pharmaceuticals
Drug and food/lifestyle interactions
caffeine food/lifestyle
Applies to: Stay Awake (caffeine)
The effect of grapefruit juice on the pharmacologic activity of caffeine is controversial. One report suggests that grapefruit juice increases the effect of caffeine. The proposed mechanism is inhibition of cytochrome P-450 metabolism of caffeine. However, a well-conducted pharmacokinetic/pharmacodynamic study did not demonstrate this effect. The clinical significance of this potential interaction is unknown.
References (2)
- (1995) "Grapefruit juice interactions with drugs." Med Lett Drugs Ther, 37, p. 73-4
- Maish WA, Hampton EM, Whitsett TL, Shepard JD, Lovallo WR (1996) "Influence of grapefruit juice on caffeine pharmacokinetics and pharmacodynamics." Pharmacotherapy, 16, p. 1046-52
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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