# Convenient methods for ingestion of molecular hydrogen: drinking, injection, and inhalation

## TL;DR

This study introduces safe and convenient methods for administering molecular hydrogen through drinking, injection, and inhalation.

## Contribution

The paper presents novel devices for safely delivering molecular hydrogen in clinical and research settings.

## Key findings

- Devices for H2 water drinking, saline infusion, and gas inhalation were developed.
- Changes in H2 concentration were analyzed for research utility.

## Abstract

Molecular hydrogen (H2) is clinically administered; however, in some hospitals, H2 is given to patients without consideration of its safe use. In the present study, we prepared convenient and safe devices for the drinking of super-saturated H2 water, for intravenous drip infusion of H2-rich saline, and for the inhalation of H2 gas. In order to provide useful information for researchers using these devices, the changes in H2 concentration were studied. Our experimental results should contribute to the advance of non-clinical and clinical research in H2 medicine.