ADHD impairs sleep — getting to bed on time, sleeping soundly, and waking up. If you're curious as to why you're always tired, Dr. Dodson explains 4 common sleep disturbances associated with ADHD / ADD—plus tips for winding down, staying asleep longer, and waking up healthier. One of the downfalls to the wildly increasing popularity of CBD use is that not a lot of research has been done in regard to its potential interaction with other drugs. What is Benadryl? Benadryl is an antihistamine which, in humans, is used to help get rid of a wide range of complaints. The name of the drug used in Benadryl is Diphenhydramine, and there are quite a few other brands that also use this drug, including Nytol, Panadol and Benylin. How can you treat fatigue caused by allergies? If you’re experiencing the effects of brain fog, there are some things you can do to feel less tired. Tired of feeling tired? Here's a proven plan to win that battle. Find patient medical information for Benadryl Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Easy-to-read patient leaflet for Benadryl Allergy/Cold (Acetaminophen, Diphenhydramine, and Phenylephrine Tablets). Includes indications, proper use, special instructions, precautions, and possible side effects. Questions & Answers. 1. Can you give a dog Benadryl? Yes! Dogs can take Benadryl, for much the same purposes as humans. On the other hand, the dosage is different for dogs, or even a dog the same size. Sleep better the first night you try it with safe, all-natural Relaxium Sleep ® Relaxium Sleep® is a unique blend of safe, clinically- tested ingredients that help you sleep better naturally without the risk of dependency. Diphenhydramine is benadryl & usually comes in 25 mg doses OTC. You can take 2 safely at a time. The max dose for 24 hours is 300mg, but have never heard of anyone taking this much, & definitely not all at once.