Drug Facts. Active ingredients (in each 5 ml = 1 teaspoonful) Purpose. Aluminum hydroxide (equiv. to dried gel USP) 400 mg ..........Antacid. Magnesium hydroxide 400 mg................................................Antacid. Simethicone 40 mg.................................................................Antigas.
There are a few that use lighter weights, even 14 grams, and some that use heavier, around 30 grams. However most professional dart players use from 18 to 23 grams.
Assuming you are talking about the dart board game, the professionals on average use from 18 to 23 gram darts. Some use lighter and some use heavier. I use 26 gram darts as does Phil Taylor.