I think he means the acetamenophen. And yes it is, but only if you do dxm a lot. Im assuming your taking coriceden or robitussion or something along that line. But anyways, for your first time it won't cause you any damage, as long as you don't take to many. 10 is a good first time does but as you do dxm more you may want to up the doseage to around 250-600mg. You will want to take Robitussin Max Strenght for this because DXM is the only active ingredient.