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Doctor insights on: Benadryl Hangover

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How much Benadryl (diphenhydramine) is considered too much?

How much Benadryl (diphenhydramine) is considered too much?

Benadryl (diphenhydramine): Either the recommended amount based on weight through the directions on the box or following your doctors recommendations if the recommended dose they made is higher. Read more

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Hangover (Definition)

Various unpleasant physiological and psychological effects following the consumption of wine, beer and distilled spirits. Hangovers can last for several hours or for more than 24 hours. Typical symptoms of a hangover may include headache, drowsiness, concentration problems, dry mouth, dizziness, fatigue, vomiting, absence of hunger, depression, sweating, ...Read more


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Why is it that Benadryl (diphenhydramine) gives me a hangover?

Why is it that Benadryl (diphenhydramine) gives me a hangover?

Crosses into brain: There is a blood:brain barrier and medications can cross through this barrier to cause people to feel "hungover". People complain of feeling drowsy or paradoxically some people get insomnia. Non-sedating antihistamines (fexofenadine, loratidine, cetirizine) have less of this "crossover" and so cause less problems for people. Read more

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Husband has bad allergies. Congested, runny nose. Claritin doesn't help, zyrtec makes him dizzy, Benadryl (diphenhydramine) makes him hungover. What else will help?

Husband has bad allergies. Congested, runny nose. Claritin doesn't help, zyrtec makes him dizzy, Benadryl (diphenhydramine) makes him hungover. What else will help?

Seasonal allergies: Treatment of allergic rhinitis will be based on the severity of the symptoms. Intra nasal steroids (like Flonase or nasonex) would be considered in the treatment. You can also try allegra. In severe cases we might start oral steroids. Read more

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What is Benadryl (diphenhydramine) used for?

See below: Benadryl (diphenhydramine) is an antihistamine. It is normally used to help with allergy symptoms, sneezing, and runny nose. It can also help with itchy rashes. Also, it is occasionally used for motion sickness. Read more

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How should a person feel if the snorted 50 mgs of benadryl (diphenhydramine)?

Bad idea: The snorting of medicines that are not supposed to be administered intranasally is usually going to lead to catastrophic effects. The consequences of administering Benadryl (diphenhydramine) in an inappropriate manner could be delirium and hallucinations. You could also turn psychotic and accidentally hurt yourself or someone else. Read more

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Is it safe to take 4 benadryl, 50 mg?

Is it safe to take 4 benadryl, 50 mg?

Not good idea: This will not kill you but will likely make you very drowsy, thirsty (dry mouth), and/or constipated. It may also lead to rapid heart beats. Why do you feel that you need that many? Read more

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Can taking Benadryl cause acquired LQTS?

Can taking Benadryl cause acquired LQTS?

Rarely.: In people who have congenital LQTS, benadryl can cause heart arrythmias by making their underlying problem worse. In people with normal QT, very large doses or overdoses of benadryl can prolong the QT and have serious or fatal consequences. Bendaryl is a medicine to avoid if you have LQTS, and only one of many factors to consider if you have the acquired version. Speak to a cardiologist. Read more

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Side effects of benadryl (diphenhydramine)?

Dried up and sleepy: Why would you want to take benadry (the brand name for diphenhydramine) long term? Fagetaboutit. Side effects are drying of mucous membrane, drowsiness, fatigue, difficulty urinating... Read more

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Is Benadryl (diphenhydramine) good for sinus?

Is Benadryl (diphenhydramine) good for sinus?

Only in the: Sense that it could help dry up secretions, or decrease an allergic component of nasal congestion. Read more

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Is loratadine like benadryl (diphenhydramine)?

Is loratadine like benadryl (diphenhydramine)?

Kinda mostly: Loratadine is a 'non-sedating antihistamine, ' and Diphenhydramine (/benadryl) is a sedating antihistamine (aka: older / h1 & h2 blocker), so yes, they are close cousins in intended effects--just differ in side effects. Read more

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Is Benadryl (diphenhydramine) good for sunburn?

Is Benadryl (diphenhydramine) good for sunburn?

Simple Care: Sunburn is response of the tissues to injury from solar radiation. It is simply inflammation which means increase blood flow to the area to promote healing. Do not use ice as this can injure already injured skin. Cool water soaks can help as can taking anti-inflammation medicines like Motrin or advil (ibuprofen). Avoid any further damage as this can cause scarring. Good skin cream applied daily/gently helps. Read more

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Can Benadryl (diphenhydramine) help with fevers?

Benadryl (diphenhydramine) is an: Anhistamine. It does not reduce fevers but can help with other symptoms that might be associated with a febrile condition. Read more

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Can I take Benadryl (diphenhydramine) for sinus?

Can I take Benadryl (diphenhydramine) for sinus?

Yes: Benadryl (diphenhydramine) is an anti-histamine and has properties to dry secretions. If you are having sinus congestion from seasonal allergies, this may help alleviate some of your symptoms. It would also help if you have a runny nose. Read more

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Does Benadryl (diphenhydramine) work for anxiety?

Does Benadryl (diphenhydramine) work for anxiety?

Time For DroolSchool: We here on the ranch call it"Benadrool"because it can shlog you out. So yes sometimes it can work for calming down. But too much turns it into Bena-DryMouthBlurredVisionKnockedOut-Dryl. So just take one capsule (25mg)or at most 50mg. It's not usually prescribed for this. There are other medications specifically for anxiety. But Benadryl (diphenhydramine) is a non-prescription medication and usually safe at proper doses Read more

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50mg of Benadryl (diphenhydramine) ok before bed?

Benadryl (diphenhydramine): Should be fine, but would rather take 25mg if you have not taken it before regularly, as you may have a hard time waking up the next day. Read more

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Can a 12 week old take benadryl (diphenhydramine)?

Can a 12 week old take benadryl (diphenhydramine)?

No: It is not recommended unless there is a serious allergic condition. You should see the doctor to have the baby evaluated before Benadryl (diphenhydramine) is given. You have to know what you are treating. Read more

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Does Benadryl (diphenhydramine) work for jock itch?

Does Benadryl (diphenhydramine) work for jock itch?

Possibly: Benedryl is an antihistamine which helps itching associated with hypersensitivity reactions such as allergies, bug bites, etc. You may find some transient relief of itching caused by fungal infections, but the ultimate treatment would be that of cure (i.e. topical antifungal cream/powder/spray). Read more

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Strange side effects of benadryl (diphenhydramine)?

Strange side effects of benadryl (diphenhydramine)?

Several: The most common side effect of taking too much Benadryl (diphenhydramine) would be excessive drowsiness. Other possible side effects include dizziness, headache, constipation, urinary retention, and heart palpitations. Read more

Dr. John Chiu
1,046 Doctors shared insights

Diphenhydramine (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


Benadryl (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more