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Category: Allergies, Cough & Cold

Diphenhydramine Overview

Diphenhydramine (/dafnhadrmin/; abbreviated DPH, sometimes DHM) is a first-generation antihistamine possessing anticholinergic, antitussive, antiemetic, and sedative properties that is mainly used to treat allergies. It is also used in the management of drug-induced parkinsonism and other extrapyramidal symptoms. The drug has a strong hypnotic effect and is FDA-approved as a nonprescription sleep aid, especially in the form of diphenhydramine citrate. It is produced and marketed under the tra...

Read more Diphenhydramine Details
Details May Include Instructions, Side Effects, Interactions, Etc. Drug monograph is from Wikipedia. All text is available under the terms of the GFDL (GNU Free Documentation License). Source:

Recent Diphenhydramine Forums: RSS Feed

pink pill 44 329
1 Reply RSS
Can I took this with winter cold.It the only thing I got I. My him? ## Hello, Amanda! How are you? This tablet is manufactured by Major Pharmaceuticals and they list it as containing 25mgs of Diphenhydramine. The FDA classifies this medication as an antihistamine that is most commonly used to treat allergic reactions and induce sleepiness. Its typical side effects may include dizziness, drowsiness, blurry vision and dry mouth. It is doubtful that it will help much with cold symptoms, since a cold doesn't involve histamines. Have you spoken to your doctor?
Updated 5 minutes ago.
What can take the place of visteril
1 Reply RSS
I am out of my visteril and can't get it refilled, is there anything I can take to help take the place to help with the side effects of withdrawal ? ## Hello, Linda! How are you? Have you discussed it with your doctor? They may be able to refill it and help you. There are some antihistamines available over the counter, such as Diphenhydramine and Meclizine, but they aren't as potent and effective as Vistaril, which is why it's a prescription only medication. They may also cause side effects, as listed by the FDA, that may possibly include dizziness, drowsiness, dry mouth and weight changes. Is there anything else I can help with?
Updated 29 days ago.
diphenhydram 25mg cap
2 Replies RSS
pink/white cap ## Diphenhydramine, a generic for Benadryl, is commonly used to treat allergic reactions, insomnia and some mild cases of nausea. Side effects can include: drowsiness, dizziness, sedation and dry mouth. You can read more here: Is there anything else I can help you with? ## Why would Dr.have me take prednisone before a ct and what is it used for
Updated 1 month ago.
Small Round Light Blue Pill with BD on one side - Unmarked on the Other?
2 Replies RSS
Hi Guys, Found this small round light blue- grey ish pill in my bedroom.. it reads in capital letters " BD " on one side, and is totally smooth and unmarked on the other. I've been searching online and cant seem to find any information on it.. Please help! Thanks! ## Hello, Shadow! How are you? I'm sorry, but so far, I've not been able to find anything that matches this description. I know there are square tablets with the BD marking that are anabolic steroids, but I've found nothing on a round one. I'll keep looking and post back, when I have information for you. Does anyone else recognize this tablet? ## It is 25mg of diphenhydramine or a mild otc sleeping pill. Hope this helps!
Updated 1 month ago.
44367 blue pill
1 Reply RSS
I've been taking it & didn't know I was pregnant. Could this harm my baby in any kind of way? ## Hello, Ash! How are you? Congratulations on the baby! This tablet is manufactured by Woonsocket and they list it as containing 25mgs of Diphenhydramine, which is used to treat allergies and insomnia. Typical side effects, as listed by the FDA, may possibly include dizziness, drowsiness and dry mouth. And the FDA places this medication in pregnancy category B, which means there is no known/proven risk in humans. However, it would be best to make sure your doctor is aware that you were taking it. Is there anything else I can help with?
Updated 3 months ago.
green capsule P30
5 Replies RSS
this is a liquid filled capsule with no other markings excpet P30 (there is no space between the P and 30) ## I'm not sure but I found the same pill in my medicine cabinet today. If you do find out, please email me at {edited for privacy} Thanks a lot, and good luck! ## Unfortunately this gel cap is not coming up on any of the standard imprint references. This means it is most likely an over-the-counter medication; OTCs are not regulated the way that prescription medications are such that their imprint codes are not required to be catalogued. There is a chance this medication may be from Walgreen's because a related discussion thread for a was identified as Wal-Som (Diphenhydramine 50 mg) from Walgreens. With that said, it has also been reported that the P30 gel cap was found i...
Updated 3 months ago.
44-485 blue oblong caplet
4 Replies RSS
blue oblong caplet over the counter with the imprint 44485 ## I am sorry, I do not understand what you are asking. Is that marking PH on the pill? or just the numbers? ## The pill which you are describing is an over the counter combination of an antihistamine and decongestant. The active ingredients are 25 mg Diphenhydramine + 10 mg Phenylephrine. ## Just to add, the manufacturer LNK International calls it 'Complete Allergy D Tablets', with a national brand equivalent of Benadryl-D. [1] Do you have any other questions or information to add? Please post back if you do... References [1] (page 6) ## These are allergy/sinus tablets from CVS.
Updated 4 months ago.
Blue Gel Oval Pill A99
5 Replies RSS
little gel blue pill, hard liquid, but still a gel pill, what is it? with A99 on one side. ## This is an over the counter sleep-aid that contains 50mgs of Diphenhydramine. Common side effects may include: nausea, drowsiness, dry mouth and dizziness. Learn more: Are there any questions or comments? ## WHAT HAPPENS WHEN THIS DRUG IS MIXED WITH ALCOHOL? Any other dangerous side effects? Thanks ## @Very concerned You die. ## I take this with Alcohol once or twice a week. You don't die. Diphenhydramine is Benadryl. It is used as a sleep aid as well, and Alcohol will amplify the effects of it. While taking the recommended dose (25-50mg), you'll just get buzzed quicker and fall asleep faster. ## It's not good for your liver to drink on them
Updated 5 months ago.
zzzquil and Type 2 Diabetes
1 Reply RSS
Is this safe for a person with Type 2 Diabetes? I think it is loaded with sugars but cannot find any exact information about this. I think it might be the reason my sugar count has been up for the past month. I have a problem staying asleep and have been using zzzquil for the past month or so and it seems to help, but if it is keeping my sugar count high I'll have to stop taking it. ## Hello, Larry! How are you? One of the inactive ingredients is high fructose corn syrup, which could raise your sugar levels, especially if you're sensitive to it, as some people tend to be. If you need a sleep aid that doesn't contain it, the active ingredient in this is just Diphenhydramine, 50mgs per dose. Diphenhydramine is available by itself in Benadryl and its generics, as well as in pro...
Updated 6 months ago.
lit pink and white capsule with no numbers on it!!
1 Reply RSS
would ya know what kind of pill this is!! i found it out side of the end of my drive way.of my house on the ground.i do not need for my Daughter to get a hold of it.please let me know what the it is.Thanks..... ## Hello, Lynn! How are you? If there are no markings on it, it is most likely an over the counter product. There are some Diphenhydramine capsules that match this description, they are a generic or store brand of Benadryl, which is used to treat allergies. I'm not certain, but I'll do some more looking and post back, when I have more information for you. Does anyone else have any idea of what this contains?
Updated 6 months ago.

Possible Dosages for this and Related Drugs:

  • Capsule: 25mg, 50mg
  • Cream: 1% + 0.1%, 2%, 2% + 0.1%
  • Elixir: 12.5mg/5ml
  • Gel: 2%
  • Injection: 10mg/ml, 50mg/ml
  • Liquid: 12.5mg, 12.5mg/5ml, 2% + 0.1%, 6.25mg/5ml
  • Ointment: 2%
  • Oral Dissolving Strip: 12.5mg, 25mg
  • Spray: 1%, 2% + 0.1%
  • Suspension: 25mg/5ml
  • Tablet: 25mg, 50mg
  • Tablet, Chewable: 12.5mg, 25mg
  • Tablet, Orally Disintegrated: 19mg
Note: Above list includes dosages for all drugs with the same combination of active ingredients.

Other drugs which contain Diphenhydramine or a similar ingredient: (38 results)

Possibly related Diphenhydramine Topics:

diphenhydramine HCL 25 mg phenylephrine HCL 10 mg blue oblong tablet 44-485 imprint LNK Int'l ## i just need to know what this medicine is called ## don't know BR... 5 replies
diphenhydramine sleeping tablet It a small round plain white tablet. I'm would just like to know the mg before taking ## Hello, Crystal! How are you... 1 reply
Diphenhydramine Dextromethorophan Caffine Theophylline Is their any drug, like a cold medicine ect, that would have a combination of caffine, dextromethorophan, diphenhydramin... 1 reply
Diphenhydramine Hci 25 Mg Lnk International Inc the pill is small and one half is bright pink, the other half is white. the numbers 44-107 are on each pill. What is the... 1 reply
Diphenhydramine HCI 25 Lot#P45312 yellowish color softgels purchased at Dollar General Stores in past but no longer available ## There are a ton of compan... 1 reply
diphenhydramine? pink capsule with 21 on one side and triangle logo ## Pill Image Yes, this is Diphenhydramine 50mgs, a generic or store ... 1 reply
diphenhydramine ## this is benedryl for allergys, or in sleep aid such as tylonol p.m.... 1 reply
diphenhydramine hcl 25mg blue pill...
Methaqualone Diphenhydramine Why no mention of the sleeping pill Toquilone? It is a prescription-only drug containing 250mg methaqualone and 25mg dip... 1 reply