Question: What happens if you take Benadryl for a long time?

Benadryl and some other antihistamine drugs can sometimes cause decreased memory, confusion, and trouble thinking. These side effects are more common in seniors. In addition, taking Benadryl long term might increase the risk of dementia such as Alzheimer’s disease, especially in seniors.

What are the side effects of long term use of Benadryl?

Physical effects of diphenhydramine addiction

  • Excessive drowsiness.
  • Constipation.
  • Blurred vision.
  • Dizziness.
  • Tightness in chest (known as angina)
  • Dry mouth.
  • Increased heart rate.
  • Inability to urinate.

Is it bad to take Benadryl every night?

Taking Benadryl to help you get to sleep is okay in small doses once in a while ― but, again, it doesn’t lead to better quality sleep, Elliott said. Because antihistamines can peer pressure your body to spend more time in the lighter stages of sleep, the eight hours you clock in bed might end up feeling more like five.

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How long is it OK to take Benadryl?

Do not use diphenhydramine for longer than 2 weeks to treat sleep problems, or longer than 7 days to treat cold or allergy symptoms. This medicine can affect the results of allergy skin tests. Tell any doctor who treats you that you are using diphenhydramine.

How long does Benadryl last in your system?

Benadryl does not stay in your system for very long, and frequent re-dosing is required, leading to more side effects. The second-generation antihistamines will often last for more than 24 hours while leading to far fewer side effects.

What are the negative effects of Benadryl?

Common side effects may include:

  • dizziness, drowsiness, loss of coordination;
  • dry mouth, nose, or throat;
  • constipation, upset stomach;
  • dry eyes, blurred vision; or.
  • day-time drowsiness or “hangover” feeling after night-time use.

What happens when you stop taking Benadryl?

– There are not any adverse symptoms for people who quit taking diphenhydramine if diphenhydramine has been taken at the usual recommended dose. If diphenhydramine was taken for a prolonged period of time at a larger than usual dose, there may be some symptoms of withdrawal including insomnia and irritability.

Does Benadryl help with anxiety?

One of the biggest advantages of using an OTC medication such as Benadryl to treat anxiety is that it is fast-acting and convenient. This can be helpful if you need to reduce symptoms of mild anxiety quickly. Because Benadryl causes many people to feel drowsy, it can also help aid in sleep.

What is the best antihistamine for sleep?

Sleep aids: The options

  • Diphenhydramine (Benadryl, Aleve PM, others). Diphenhydramine is a sedating antihistamine. …
  • Doxylamine succinate (Unisom SleepTabs). Doxylamine is also a sedating antihistamine. …
  • Melatonin. The hormone melatonin helps control your natural sleep-wake cycle. …
  • Valerian.
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Does Benadryl affect the liver?

Diphenhydramine undergoes extensive first-pass metabolism, whereby 50–60% of ingested medication is metabolized by the liver before reaching the systemic circulation. Nearly all the available drug is metabolized by the liver within 24–48 hours, thus increasing risk for liver injury.

Is Benadryl safe for your heart?

In the drug realm, antihistamines such as diphenhydramine (Benadryl), chlorpheniramine (Chlor-Trimeton), cetirizine (Zyrtec), and loratadine (Claritin) can help with a stuffy nose are safe for the heart. Nasal sprays deliver a decongestant right where you need it.

What does Benadryl do to your body?

This medication works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction. Its drying effects on such symptoms as watery eyes and runny nose are caused by blocking another natural substance made by your body (acetylcholine).

What should you not take with Benadryl?

Examples of medications that may interact with Benadryl include:

  • antidepressants.
  • stomach ulcer medicine.
  • cough and cold medicine.
  • other antihistamines.
  • diazepam (Valium)
  • sedatives.

How much benadryl can i take at once?

1 to 2 chewable tablets (12.5 mg to 25 mg) every 4 to 6 hours or as directed by a doctor. Do not use unless directed by a doctor. Do not use. Do not take more than 6 doses in 24 hours.

Why does Benadryl make me so tired?

Histamine is involved in causing allergy and cold symptoms. It also plays a role in wakefulness. When Benadryl blocks histamine, it takes away its stimulation of wakefulness. Many people experience this as drowsiness and can use Benadryl to sleep.

Does Benadryl help an allergic reaction?

Seek emergency treatment right away. In severe cases, untreated anaphylaxis can lead to death within half an hour. An antihistamine pill, such as diphenhydramine (Benadryl), isn’t sufficient to treat anaphylaxis. These medications can help relieve allergy symptoms, but work too slowly in a severe reaction.

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No runny nose