Choose the right purpose for the message
Decide whether the message is meant to inform, apologize, ask, support, or close a practical loop. For a message about how to support someone after surviving an overdose, use this factual base: use the person's own language for recovery, name the practical concern, and distinguish a lapse from what you do not know.
Use detail that helps a decision
Include the smallest set of details that lets the recipient understand the impact and choose a response. Offer a specific sober or practical support option and encourage connection with qualified help. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Know what the message cannot achieve
Do not shame, bargain, lend money without limits, or make your relationship the reward for recovery. For overdose, dangerous withdrawal, suicidal intent, violence, or immediate risk, contact emergency or crisis services now. The message can offer clarity, but it cannot guarantee forgiveness, agreement, attention, or renewed contact.