Amortentia is a powerful aphrodisiac that creates an intense feeling of love or obsession in the person who drinks it. There are different kinds of these love potions, each designed to have various effects on the user. These feelings are encouraged through the increase of dopamine in the brain. Many different ingredients go into the making of a potion, including eye of newt, skin of a dead toad,etc. These ingredients are dumped into a cauldron and stirred, with an enchantment placed on the brewing stew ( double double toil and trouble). The result is a colorless, odorless liquid that leaves no trace of itself in the digestive system.
In many ways, potions like these were seen as one of those things that nobody talked about while knowing that they were bought and used. Say you wanted to win the girl of your dreams who despised you or was unaware of your existence: love potion. Want to marry a rich bachelor with millions of dollars, and set him up to have an unfortunate accident so you can collect on the insurance: love potion. However, times have changed. The current generation takes a very different view of these kinds of acts, considering it as a dangerous substance that inflicts on people's rights. This has been reflected in the modern day government, who have passed laws banning the use or sale of these potions.
There are problems with regulation however:
The ingredients to make the substance are fairly common and used in many kinds of spells. Due to their necessity, the government cannot realistically simply ban these items from being sold.
The exact formula for making these substances are widely known by now, with use of these potions going back many centuries. Simply censoring knowledge about how to make them is unlikely to succeed long term.
How can this ban be enforced among the populace to prevent amortentia from usage?