Hendoku Iyaku is a Buddhist principle that means “changing poison into medicine.”
In Nichiren Buddhism as practiced by SGI, it teaches that even life’s greatest difficulties—such as illness, loss, failure, painful relationships, or the effects of past actions—can become the very source of personal growth and happiness. Rather than seeing suffering as something that only causes pain, this principle encourages people to view challenges as opportunities to develop wisdom, courage, compassion, and a stronger, more resilient life through Buddhist practice.
In everyday life, Hendoku Iyaku means facing problems with confidence instead of running away from them. As you strengthen your inner life through faith and consistent practice, your struggles gradually become the driving force behind your personal transformation, often called human revolution. Instead of feeling defeated or seeing yourself as a victim of circumstances, you learn to turn setbacks into valuable life lessons that benefit not only you but also others facing similar challenges.
Poison Into Medicine
I drank the night
Felt it burn inside
But something in me said
This pain can turn the tide
One breath
One sound
I won’t stay down
Every scar spoke my name
Every loss fed the flame
What was sent to break me down
Built the strength I found
I faced the darkest door
Didn’t run anymore
Every wound became a key
Opening the greater me
I found power in the fire
I found truth in the pain
What was meant to end my life
Now is life in my veins
I turn poison into medicine
I turn falling into rising again
Every shadow becomes my friend
Poison into medicine
I turn poison into medicine
Every ending begins again
From the fire I transcend
Poison into medicine
Every fear lost control
When I stood in my soul
Every storm that shook my ground
Made a stronger sound
I don’t curse the rain
It made diamonds from pain
Now the past that haunted me
Is the force that set me free
Every step through the night
Brought the sun into view
What was breaking my heart
Built a heart that’s renewed
I turn poison into medicine
I turn falling into rising again
Every shadow becomes my friend
Poison into medicine
I turn poison into medicine
Every ending begins again
From the fire I transcend
Poison into medicine
Medicine
Medicine
Poison into medicine
Medicine
Medicine
Hendoku Iyaku
Poison into medicine
I rise
I rise
Poison into medicine