Benadryl (diphenhydramine)

Diphenhydramine is an antihistamine used to treat allergies. It also has some sedative effects and can cause sleepiness.

1,998 Questions
Benadryl (diphenhydramine)

Is safe to take a 3mg melatonin pill after taking two benadryl?

From experience you will just sleep. Take before bed and make sure to get at least 7 hours of sleep, and eat something with it or you will wake up with a tummy ache

Dog Health
Benadryl (diphenhydramine)

How much Benadryl can you give a dog?

You can give them 1mg of benadryl per pound your dog weighs three times per day.

Dog Health
Benadryl (diphenhydramine)

Can you put Benadryl cream on your dog?

No, this would be a very bad idea. First, dogs need a much different dose of Benadryl than humans do, and skin absorption of Benadryl is very different between humans and dogs. You could cause a bad overdose with this without meaning to. Second, Benadryl cream is formulated to be placed on the skin ONLY - dogs tend to lick anyplace that is irritating them and are likely to lick this stuff off and eat it, potentially causing a bad medical reaction to the ingredients in the cream. Third, dogs really don't need a topical Benadryl - veterinarians use it to deal with bee stings and mast cell tumors, but those are both pretty rare and not something you would be handling on your own.

Benadryl (diphenhydramine)

Does Benadryl have acetaminophen in it?

Regular Benadryl is just diphenhydramine and contains no acetaminophen.

However, BE SURE to look at the back of the package for the active ingredients before assuming anything. There are many OTC products that have multiple ingredients.

Drug Tests
Benadryl (diphenhydramine)

Can taking benadryl affect a drug test results?

Benadryl (Diphenhydramine), has been reported to cause false positives for benzodiazepines (such things as Xanax, Valium), PCP and tricyclic anti-depressants. The false positives occur using the screening-type tests (sticks, cups, etc) but confirmatory tests using GC/MS should clear any false positive.

Benadryl (diphenhydramine)

How can i get my dog to eat Benadryl?

Put it into his food and he will eat it along with the food.

Or open his mouth and put the tablet to the back of his throat. He will gag a little, but take your hand out and stroke his throat gently until he swallows. My dogs will eat around a pill, but I have no trouble giving them medication this way.

Cough and Cold Medicine
Benadryl (diphenhydramine)

Can you take Robitussin AC and Benadryl together?

yes, if taken at normal recommended doses.

Benadryl (diphenhydramine)

Can Benadryl cause panic attacks?

No. It can prevent panic attacks.

Benadryl (diphenhydramine)

How long does it take for Benadryl to work?

Benadryl, or diphenhydramine hydrochloride, when taken by mouth, works within 15 to 60 minutes. When injected through a muscle, it takes 20 to 30 minutes to work. When injected through a vein, it works rapidly. The effects of diphenhydramine hydrochloride work for approximately 4 to 8 hours, regardless of the form in which it is taken.

Benadryl (diphenhydramine)

Can a dog take Benadryl and Zyrtec?


Benadryl (diphenhydramine)

Can you take Benadryl and NyQuil together?

NyQuil already contains doxylamine, which is almost exactly like Benadryl (diphenhydramine), so it wouldn't be a good idea to take them together since that would be a "duplication of therapy". If the NyQuil isn't keeping your congestion down, you could probably take 25 mg of Benadryl (diphenhydramine) and be OK.

Benadryl (diphenhydramine)

Can you smoke marijuana while taking diphenhydramine?

Apart from the fact that the use of marijuana is illegal in almost all jurisdictions, its interaction with other drugs is not fully understood because it has not been subject to clinical trials in the way all approved drugs have been.

There are a number of risks associated with smoking weed and they can be increased with the use of other drugs at the same time.

Benadryl (diphenhydramine)

Can you mix Benadryl and cetirizine?

Technically yes, but it is not recommended. The two drugs basically do the same thing, and, as opposed to mixing say naproxen, Acetaminophen, and ibuprofen, there would be no benefit - just more drowsiness and dry-mouth.

Benadryl (diphenhydramine)

How much Benadryl can dog have?

Our vet said the rule is 1 mg of Benadryl per lb. of dog. So 25 mg pill for a 25 lb. dog, etc. Do not give liquid benadryl because it contains alcohol.

Benadryl (diphenhydramine)

How many benadryl tablets should a human consume?

The maximum effective dosage is usually 25-50mg, which can be taken up to 4 times daily.

Benadryl (diphenhydramine)

Can you mix Benadryl and amitriptyline?

Benadryl and amitriptyline in combination are capable of blocking acetylcholine receptor activity. Possible side effects may include, but are not limited to, dry mouth, dry eyes, blurred vision, urinary retention, and constipation. Caution is warranted.

Also both these drugs are central nervous system depressants and the use of these two drugs together should be monitored. Some side effects may include, but are not limited to, ataxia, confusion, drowsiness, respiratory depression, and weakness. Since both medications have the potential to depress CNS function it is important to recognize that the risk of unwanted effects may increase with such use.

Amitriptyline may decrease the metabolism of Benadryl. This can alter Benadryls intended use. The benefits of combined use of these two medications usually outweigh the risks. Timing and dosage play a factor in the interaction of the two. You should talk to your doctor if you have any concerns of the above interactions.

Benadryl (diphenhydramine)

Will norvasc diovan hct Cymbalta metformin hct prilosec tenex glipizide actos lipitor plavix aspirin ec diphenhydramine oxycodone hcl show a false positive or THC positive?

THC is a cannabinoid substance that cross-reacts with dronabinol (Marinol), a cannabinoid used to treat nausea and AIDS-related wasting. Other substances have been reported to cause false-positives for THC. A rash of false-positive urine drug screens in newborns was shown to be caused by any of several unrelated ingredients of soaps used by some of the nurses to clean the babies before the samples were collected ( Enfavirenz, an anti-retroviral drug used to treat HIV (AIDS virus) causes false positives (, as do omeprazole (Prilosec), pantoprazole (Protonix), and the nonsteroidal anti-inflammatory drugs (NSAIDS) ( Hempseed oil products, which are legal, sometimes contain large quantities of THC contaminants, depending upon the source of the seeds ( <br /><br /> Oxycodone is a semi-synthetic opioid that does not usually show up in screening tests for "opiates," but there are screening tests that are designed for it.

Benadryl (diphenhydramine)

Can a dog take tums and benadryl together?

You should consult a vet about this question incase your dog gets sick.

Benadryl (diphenhydramine)

Can you take benadryl while taking labetalol?

As with all medications, always consult a doctor for this kind of advice. I do know benadryl is a very potentially dangerous over the counter drug, possibly the most dangerous of all. It is not even sold at all in some countries like Mexico. So go by doctor's advice only on this question. Let him know all the medications you are taking (as always).

Benadryl (diphenhydramine)

Can you take Benadryl and melatonin together?


Dog Care
Benadryl (diphenhydramine)

6 week old puppy can he have benadryl?

My vet told me adult dogs may have 1mg/lb of their body weight of Children's Benadryl for allergies (So a 25 pound dog may have 25mg every 8 hours if needed), but you should always consult a vet before giving any medication (especially human medication) or you may be just masking symptoms of something more serious. Also, since I'm not a vet, I don't know if the 1mg/lb applies to puppies (probably not since human children require lower dosages of the medication). Set up an appointment with a vet and you'll know what your doing.

Benadryl (diphenhydramine)

Can you take Children's Benadryl and Children's Zyrtec together?

As a pharmacy doctorate candidate I would say that it is not recommended to give Zyrtec and Benadryl together since they will both relieve allergy symptoms in similar ways. Zyrtec is best if you want non-drowsy relief. Benadryl would be best if you want the child to sleep. Both however, are effective.

Benadryl (diphenhydramine)

How many benadryl 25 mg tablets can you give your 30lb dalmatian?

My vet has advised 1 mg of benadryl for each pound your dog weighs. So, one 25 mg pill should be enough.

Benadryl (diphenhydramine)

How much Benadryl can you take?

Take the dosage that is recommded on the label. All medication that is certified by the FDA is required by law to have instructions on usage. DO NOT exceed the daily amount for any reason. Be Good! Those who use diphenhydramine recreationally take a higher dose than recommended (usually between 225mg and 450mg, or 9-18 pills) for its deliriant effects. Diphenhydramine (the active ingredient in Benadryl) is also a component of the recreational form of heroin known as "cheese" or "chiva". The mental effects are described by many as "dreaming while awake" involving visual and auditory hallucinations which, unlike those experienced with most psychedelic drugs, often cannot be readily distinguished from reality.

Diphenhydramine generally has a low abuse profile due to the frequently unpleasant nature of the hallucinations. People who consume a high recreational dose can possibly find themselves in a hallucination which places them in a familiar situation with people and friends and rooms they know, while in reality being in a totally different setting.

Inexperienced users of hallucinogens are liable to panic. Other CNS effects occur within the limbic system and hippocampus, causing confusion and temporary amnesia. Toxicology also manifests in the autonomic nervous system, primarily at the neuromuscular junction, resulting in ataxia and extrapyramidal side-effects, and at sympathetic post-ganglionic junctions, causing urinary retention, pupil dilation, tachycardia, irregular urination, and dry skin and mucous membranes.

Considerable overdosage (30 or more pills) can lead to myocardial infarction (heart attack), serious ventricular dysrhythmias, coma and death. Such a side-effect profile is thought to give ethanolamine-class antihistamines a relatively low abuse liability. The specific antidote for diphenhydramine poisoning is physostigmine, usually given by IV in hospital.

Benadryl (diphenhydramine)

Can you take suboxone and Benadryl?

Yes, Suboxone and Benadryl can be taken together since there is no adverse interaction between the two drugs. Quite often antihistamines like Benadryl are taken with opiates (Suboxone contains an opiate and an opiate antagonist) to slightly heighten the effect of the opiate, but antihistamines don't dangerously heighten the effect, if they even heighten it at all. This can be verified on Medscape by using that website's drug interaction checker. I entered Suboxone and Benedryl and no interactions were found.


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