One common side effect of Benadryl is drowsiness. But some people may find that taking it causes them to feel anxious, excitable, … One of the most common side effects with Benadryl is drowsiness, but in some people it can have the opposite effect, known as paradoxical … Benadryl for anxiety might make you feel calm, but it\’s not approved to treat anxiety. Benadryl can cause you to feel tired or dizzy and is not … Benadryl may make you feel groggy and drowsy, may not help you fall asleep faster, and may do more harm by disturbing your normal sleep/wake … The Food and Drug Administration (FDA) has not approved Benadryl, which contains the active ingredient diphenhydramine, to treat anxiety. Common Benadryl side effects include drowsiness, dizziness, and blurry vision. Dry mouth and constipation are also common. Although generally considered sedating, diphenhydramine can cause paradoxical central nervous system stimulation in some individuals, particularly at higher … Benadryl® can make you quite sleepy as it has a sedative effect on the body\’s nervous system. If taken close to bedtime, the sleepiness can last into the next … Benadryl is not intended for long-term use, and while it may reduce anxiety symptoms in some individuals, the risks outweigh the benefits. Benadryl is not a safe or effective treatment for anxiety relief and should be avoided for this purpose. Although it may cause drowsiness, it … Yes. Stop taking it. As explained by my Allergy/immunology doctor, Benadrylcan cross the blood brain barrier. Try switching to Allegra. It saved … 1994 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 … Benadryl may inadvertently alleviate symptoms if sleep disruptions cause your anxiety and if it makes it easier for you to fall asleep. (9) However, using … Written by Juhi Modi Medically reviewed by HaVy Ngo-Hamilton, Pharm.D., Erinn Flowers-Kelvin, PharmD | Updated Jun 10, 2025. Diphenhydramine only works on one pathway: histamine. But insomnia is often caused by: Stress or anxiety; Depression; Hormonal shifts … While Benadryl has mild sedative effects that may temporarily calm anxiety, it is not a standard treatment for anxiety disorders. Prescription … Some people when they take Benadryl experience trouble sleeping, anxiety and/or aggression. This may be paradoxical excitation. For general … Antihistamines can potentially cause anxiety in some individuals, though this is not a common side effect. First-generation antihistamines like … Benadryl (diphenhydramine) may make some people feel calmer because it causes drowsiness, but it is not approved to treat anxiety. While Benadryl may provide temporary relief from anxiety symptoms due to its sedative effects, its use as an anxiety treatment is not … Why Some Allergy Medications May Trigger Anxiety or Panic Attacks; Antihistamines and Their Effects on the Nervous System; Allergy Treatments … 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 Benadryl can cause drowsiness and a sense of calm, which might feel soothing in high-stress moments. However, this is a side effect of its … Benadryl is not intended for long-term use, and while it may reduce anxiety symptoms in some individuals, the risks outweigh the benefits. Benadryl may provide temporary relief for mild anxiety symptoms, but it\’s not a recommended long-term solution. While Benadryl is primarily an antihistamine …