It may be a "natural" product, but if certain medications are taken with phenylalanine, drug interactions could occur. These interactions could lead to potentially dangerous side effects or may make some conditions, like Parkinson's, worse. Medications that can cause phenylalanine drug interactions include MAOIs, antipsychotic medications, and medicines containing levodopa.
An Introduction to Phenylalanine Drug Interactions
Even though
phenylalanine is a natural product, it can potentially interact with some medicines. Some of the medicines that may lead to phenylalanine drug interactions include: