Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Filler

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Filler: An inactive substance used to make the active medicine easier to measure. For example, fillers are often used in tablets or capsules because the amount of active drug is too small to be handled conveniently.