Keep the message proportionate
Use the shortest explanation that still tells the truth about the event, impact, and current position. For a message about how to set a boundary around a recovery trigger, 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.
Give timing that can be trusted
Give a realistic date, a simple option, or a direct yes-or-no question and avoid vague promises such as soon. 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.
Close the loop without drama
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. A calm ending is more credible than a warning, a grand gesture, or language designed to provoke a response.