Billy Caldwell, from County Tyrone, Northern Ireland, is celebrating his 21st birthday, a milestone his mother Charlotte Caldwell once feared he would not reach. Billy suffers from a severe form of epilepsy that at its peak caused hundreds of life-threatening seizures daily. After conventional anti-epileptic pharmaceuticals proved ineffective, his family pursued a legal battle for access to a cannabis-based medicine.

This medicine proved life-changing for Billy, halting his seizures entirely. He has now been seizure-free for three years and is described by his mother as "not just surviving, but thriving." The family's struggle and subsequent success in obtaining the prescription played a significant role in changing UK law regarding medicinal cannabis.

Billy was born with a severe, life-threatening form of epilepsy that resisted control through various pharmaceutical treatments. The constant fear and helplessness experienced by his family during his episodes were profound. Charlotte Caldwell described epilepsy as one of the most brutal conditions a child can experience, noting the anguish of watching a child seize with no ability to intervene.

The story highlights the pivotal moments in Billy's health journey and the broader implications of his case for medicinal cannabis access. His improved health and ability to celebrate this significant birthday underscore the impact of the legal changes driven by his family's advocacy. A young man sits on a garden seat. Behind him are balloons that say 21 and in front of him is a birthday cake. The cake is Harry Potter themed with magic wand and witches hats.