Drug interactions
Sapropterin + Sodium valproate
Severity: Moderate
Sapropterin and Sodium valproate: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Valproate may interfere with folate metabolism and could reduce tetrahydrobiopterin availability, weakening the effect of sapropterin. Blood phenylalanine could rise and metabolic control may worsen.
What this interaction means in plain words
Sapropterin and Sodium valproate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Sapropterin belongs to Miscellaneous; Sodium valproate belongs to Central Nervous System.
Why it happens
Valproate may impair folate-dependent pathways and reduce BH4 levels; the mechanism is largely theoretical.
What to do
Monitor blood phenylalanine more often when starting or stopping valproate. Adjust the sapropterin dose or diet as needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Sapropterin
- Avanafil + Sapropterin Moderate
- Carbidopa-entacapone-levodopa + Sapropterin Moderate
- Carbidopa-levodopa + Sapropterin Moderate
- Levodopa + Sapropterin Moderate
- Methotrexate + Sapropterin Moderate
- Phenobarbitone + Sapropterin Moderate
Other interactions of Sodium valproate
Frequently asked questions
Can I take Sapropterin with Sodium valproate?
MediHelp rates the interaction as moderate. Sapropterin and Sodium valproate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Valproate may interfere with folate metabolism and could reduce tetrahydrobiopterin availability, weakening the effect of sapropterin. Blood phenylalanine could rise and metabolic control may worsen.
How serious is the interaction between Sapropterin and Sodium valproate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood phenylalanine more often when starting or stopping valproate. Adjust the sapropterin dose or diet as needed.
What other medicines interact with Sapropterin?
MediHelp also lists interactions of Sapropterin with, for example, Avanafil, Carbidopa-entacapone-levodopa, Carbidopa-levodopa. The full list is on the Sapropterin page.
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