New Nano Pills Deliver Epilepsy Drugs and Therapeutic Hydrogen Together
- Authors
- Hennie Marie Johnsen, Maria Tuyet Nhi Nguyen, Tove Larsen, Werner Filtvedt, Marianne Hiorth, Jo Klaveness
- Journal
- International Journal of Pharmaceutics
- Year
- 2026
- DOI
- 10.1016/j.ijpharm.2026.126845
- Study Type
- Molecular Assay
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Norway
- Health Condition
- Epilepsy
- Body System
- Nervous System
TL;DR
Porous silicon nanoparticles were able to co-deliver anti-epileptic drugs and generate hydrogen under mildly alkaline conditions, but drug loading and formulation choices reduced hydrogen output and showed the need for further optimization.
Key Finding
Silicon nanoparticles can successfully deliver both anti-epilepsy drugs and hydrogen gas through a single oral formulation, though the drug and hydrogen components compete with each other—adding drug reduced hydrogen release.
Summary
Researchers developed a new type of nanoparticle (tiny particle) made from silicon that could deliver two things at once: anti-epilepsy drugs and hydrogen gas. The silicon nanoparticles were designed to release hydrogen gas when they came into contact with the slightly alkaline environment of the intestines. The team tested whether these particles could be made into tablets or capsules and found that while the approach works, the presence of the drug reduced how much hydrogen gas was released, and capsules worked better than tablets for hydrogen generation.
Practical Takeaway
This is early laboratory research with no human testing, so it's far too preliminary to indicate what benefits hydrogen water or hydrogen-releasing formulations might have for people. The study shows the technology is theoretically feasible, but significant work remains to optimize the formulation before any clinical applications could be considered.
Abstract
Nanomedicine offers new opportunities for combination therapy by co-delivering multiple active pharmaceutical ingredients (APIs) for improved convenience and synergistic effects. Recently, hydrogen gas (H2) has gained attention for its antioxidant effects suitable for treating a wide variety of conditions, including central nervous system disorders. Previous approaches have combined drugs and H2 delivery via separate administrations. Porous silicon nanoparticles (Si NPs) offer a single platform for both drug delivery and H2 generation through water reduction under mildly alkaline conditions. In this study, porous Si NPs synthesized by centrifugal chemical vapor deposition (cCVD) were loaded with the anti-epileptic drugs carbamazepine (CBZ) or phenobarbital (PB) to evaluate dual-delivery performance. Tablet and capsule formulations were developed, and H2 and drug release was evaluated in buffers at pH 7.4-8.0. Although cCVD Si NPs previously demonstrated superior H2 release, drug loading and formulation components reduced this capacity in a concentration-dependent manner. CBZ-loaded particles showed enhanced drug release but markedly lower H2 output, unlike PB-loaded particles. Direct compression of tablets was challenging due to the low density and poor compressibility of the Si NP powder, and capsules filled with Si NP powder achieved higher H2 release. Overall, dual delivery of drugs and H2 using cCVD Si NPs is feasible, though formulation optimization remains an essential task for further development.