Interactions between Phentermine and Valacyclovir

This report displays the potential drug interactions for the following 2 drugs:

Phentermine

Valacyclovir

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No interactions were found between phentermine and valacyclovir. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Phentermine

A total of 173 drugs are known to interact with phentermine.

Valacyclovir

A total of 63 drugs are known to interact with valacyclovir.

Valacyclovir is in the drug class purine nucleosides.

Valacyclovir is used to treat the following conditions:

Drug and Food Interactions

Using phentermine with alcohol can increase the risk of cardiovascular side effects such as increased heart rate, chest pain, or blood pressure changes. In addition, you may also be more likely to experience nervous system side effects such as dizziness, drowsiness, depression, and difficulty concentrating. You should avoid or limit the use of alcohol while being treated with phentermine. Do not use more than the recommended dose of phentermine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medication without first talking to your doctor.

Therapeutic Duplication Warnings

No 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.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.

Major: Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.

Moderate: Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.

Minor: 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.

Unknown: No interaction information available.

Further Information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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