Yes, you can overdose on Adderall if you take Adderall in large amounts. More on Adderall overdose as well as amounts of safe dosing here.
Children and adults can overdose on Adderall, when taking amounts more than prescribed. More on exactly how much Adderall is safe for you and the amount of Adderall that causes overdose here.
How much Adderall is too much Adderall varies by person. Kids start at 2.5 – 5 mg but do not take more than 40 mg/day. Adults take 5 – 60 mg per day, but can tolerate more or less given tolerance leves. More on Adderall safe dosing here.
Adderall can make you feel more alert when you are drinking. But the effects of mixing Adderall and alcohol can include masking alcohol intoxication, which can lead to alcohol poisoning and alcohol related accidents. More here mixing Adderall with alcohol.
Yes, you can die from taking Adderall. But the risk of sudden death from Adderall’s effects on the cardiovascular system is low. More on reported cases of sudden death as well as how to avoid sudden death risk factors for Adderall here.