Is diphenhydramine addictive?
It can be addictive, yes. You could become dependent on it. Which means, physically, your body will not be able to sleep withought it, if sleep is what you’re using it for. Or mentally, you could become addictive, thinking in your mind “I just can’t sleep withought it… I need it!” and most likely, you give in. But, any drug mostly can be addictive in a way…