Generally speaking, you don\’t need to call a doctor if you\’ve taken Benadryl and are experiencing feelings of: anxiety; nervousness; agitation. Taking Benadryl for anxiety can provide a calming effect due to its sedative properties, but it is not FDA-approved for treating anxiety. Official answer: One of the most common side effects with Benadryl is drowsiness, but in some people it can have the opposite effect… Therefore, some anecdotal reports suggest that taking medications containing diphenhydramine, such as Benadryl, may help with anxiety. Anxiety and Nervousness: Some people use Benadryl as a mild sedative to help with anxiety or nervousness. However, it\’s important to note that it\’s not a … Benadryl Causes CNS Stimulation In Some Individuals · Restlessness · Agitation · Muscle Spasms · Insomnia · Nervousness · Irritability · Seizures (rare). Although generally considered sedating, diphenhydramine can cause paradoxical central nervous system stimulation in some individuals, particularly at higher … The medication\’s active ingredient, diphenhydramine, may make you feel tired, but it also contains drowsiness-inducing qualities. Overall anxiety might manifest … The antihistamine Benadryl can cause side effects like dry mouth, drowsiness, and blurry vision, so avoid driving until the effects wear off. Although generally considered sedating, diphenhydramine can cause paradoxical central nervous system stimulation in some individuals, particularly at higher … Some people when they take Benadryl experience trouble sleeping, anxiety and/or aggression. This may be paradoxical excitation. For general … While Benadryl might be used as a temporary sleep aid, it\’s also not approved by the Food and Drug Administration (FDA) for the treatment of … 2025 Diphenhydramine only works on one pathway: histamine. But insomnia is often caused by: Stress or anxiety; Depression; Hormonal shifts … Written by Juhi Modi Medically reviewed by HaVy Ngo-Hamilton, Pharm.D., Erinn Flowers-Kelvin, PharmD | Updated Jun 10, 2025. Since Benadryl isn\’t recommended for anxiety, there is no suggested dose for this purpose. If you\’re using Benadryl for hay fever or allergies, … Benadryl is not a safe or effective treatment for anxiety relief and should be avoided for this purpose. Although it may cause drowsiness, it … Benadryl (diphenhydramine) may make some people feel calmer because it causes drowsiness, but it is not approved to treat anxiety. Benadryl and Zyrtec gave me the opposite effect, put me to sleep and shut off my anxiety completely…. But with hydroxyzine, a prescription … While Benadryl may provide temporary relief from anxiety symptoms due to its sedative effects, its use as an anxiety treatment is not … Dr. Pagnani of Rittenhouse Psychiatric Associates discusses Benadryl (diphenhydramine) and its potential to be utilized for insomnia, … Antihistamines can potentially cause anxiety in some individuals, though this is not a common side effect. First-generation antihistamines like … Does Benadryl calm the nervous system? Benadryl can make you drowsy and relaxed, but it\’s not made to calm your nerves or take care of anxiety issues. 2025 Why Some Allergy Medications May Trigger Anxiety or Panic Attacks; Antihistamines and Their Effects on the Nervous System; Allergy Treatments … Benadryl is not an effective treatment for anxiety. It\’s intended for short-term use to relieve allergy symptoms. Learn the risks, benefits, … Diphenhydramine (Benadryl) can create a temporary calming effect due to its sedative properties, but it\’s not designed to treat anxiety directly … Due to its sedating properties, diphenhydramine is used in some hypnotic preparations. Occasionally, patients respond to diphenhydramine with paradoxical … From time to time I take Benadryl and I have found that it does reduce anxiety. It also makes me very sleepy and sometimes we just need a rest …