system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5: How does medicine like gas-x help eliminate gas in our body.
gpt
Simethicone (the active ingredient) encourages a very large number of very small bubbles (which are hard for the body to expel) to combine into a smaller number of large bubbles (which are easy to fart out). 

So, Gas-X doesn't stop you from farting -- it actually makes it easier. Its primary purpose is to relieve the bloating/pressure/pain that gas can cause.