Panic attack can make it impossible for people to really hear and take in words. So speak slowly and calmly. Get the individual’s attention, you can try to turn them around to you. Repeat their name as you do this and direct them to look at you. Once our have their attention, get them to breathe — slowly, in and out. This will not only break the cycle of panic, it will slow their respiratory rate, heart rate and lower their blood pressure. This will calm them further. You can also tell the person “You’re fine, you’re safe”. Reassure them over and over. Be prepared to invest time in this. Keep your voice low, slow and calm. If you know this person and know they have an anxiety disorder and if they’re in therapy, there may be a certain phrase they’re suppose to say to help themselves at a time like this. You can say it for them.