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: en.wikipedia.org/wiki/Diphenhydramine

Recent Diphenhydramine Forums: RSS Feed

Oblong Pill imprints S4?
1 Reply RSS
I've came across a blueish Oblong pill with imprint only on one side S4. Can someone please tell me what it could be? ## Hi Robert, Based on your description the closest match I'm finding is a 25mg Diphenhydramine hydrochloride tablet, that is a pink oblong/oval pill with S4 on one side and blank on the other. Apparently it is manufactured by Himprit Pharma Chem, out of india. I also came across a 10mg Simvastatin, red oblong/oval pill with S4 on one side and blank on the other. This one happens to be manufactured by Accord Healthcare. I realize that the color is off on the two pills I just mentioned, but still wanted to post their details in case you or any other readers desired to contact either of these manufacturers, in order to determine whether or not they make a blue vers...
Updated 1 month ago.
pink oval shaped pill with no imprints
2 Replies RSS
more of a capsule shape pink in color no imprint on either side ## Hello, Judy! How are you? Without any imprints, it's difficult to narrow down an identification with any certainty. We can rule it out as being a U.S. manufactured and approved prescription tablet, since they are all required to have imprints to enable their identification. That means that it's most likely an over the counter product and that leaves it wide open to many possibilities. Just as an example, I have some tablets matching this description sitting on my shelf right now, they contain 25mgs of Diphenhydramine, a store brand of Benadryl, which is used to treat allergies. Learn more Benadryl details here. I'll keep looking and post back, when I have information for you. Does anyone else have any idea of...
Updated 2 months ago.
light blue oblong pill 263 half circle and line
9 Replies RSS
The pill is light blue and has either a D or a half circle with a line under it on one side and the other says 263 ## Did you find out what t his pill is? I found two of them and am wondering what they are? Thanks ## The oblong pill with 263 on one side and the half circle with a line turns out to be a mild sleeping pill. Active ingredients:Diphenhydramine HCI 25 mg. Nighttime sleep aid. ## The Pill with the 263 and (- on the other side is a sleeping pill called sleep aid from Health A2Z ## What is it taken for ## It's a mild sleep aid. I take from time to time and it can be bought at many discount stores for around $1 for a bottle of 30 I think. Quite frankly it works quite well for my mind insomnia and after six years of taking it on and off I have noticed to negative side effects...
Updated 5 months ago.
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 6 months 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 7 months 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 7 months 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 8 months 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 9 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 9 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 11 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.

NDC Database Records for Diphenhydramine: (675 results)

Showing the first 20, Sorted by National Drug Code
  • 0113-0052 Good Sense Sleep Time 25 mg/1 Oral Capsule, Liquid Filled by L. Perrigo Company
  • 0113-0151 Diphenhydramine Hydrochloride 25 mg Oral Tablet by L Perrigo Company
  • 0113-0186 Good Sense Sleep Time 50 mg/30ml Oral Liquid by L. Perrigo Company
  • 0113-0379 Good Sense Allergy 12.5 mg/5ml Oral Liquid by L Perrigo Company
  • 0113-0431 Diphenhydramine Hydrochloride 25 mg Oral Tablet by L Perrigo Company
  • 0113-0462 Diphenhydramine Hydrochloride 25 mg Oral Capsule by L Perrigo Company
  • 0113-0479 Diphenhydramine Hydrochloride 25 mg Oral Tablet by L. Perrigo Company
  • 0121-0489 Diphenhydramine Hydrochloride 12.5 mg/5ml Oral Solution by Pharmaceutical Associates, Inc.
  • 0135-0057 Sominex 25 mg Oral Tablet by Glaxosmithkline Consumer Healthcare Lp
  • 0135-0058 Sominex Maximum Strength 50 mg Oral Tablet by Glaxosmithkline Consumer Healthcare Lp
  • 0185-0648 Diphenhydramine Hydrochloride 25 mg Oral Capsule by Eon Labs, Inc.
  • 0185-0649 Diphenhydramine Hydrochloride 50 mg Oral Capsule by Eon Labs, Inc.
  • 0280-1175 Alka-seltzer Plus Allergy 25 mg Oral Tablet by Bayer Healthcare LLC, Consumer Care
  • 0363-0004 Childrens Wal-dryl 12.5 mg/5ml Oral Liquid by Walgreen Company
  • 0363-0060 Wal-sleep Z 25 mg Oral Capsule by Walgreen Company
  • 0363-0092 Wal Dryl 12.5 mg/5ml Oral Liquid by Walgreens
  • 0363-0189 Diphenhydramine Hydrochloride 25 mg Oral Tablet by Walgreen Co.
  • 0363-0190 Wal-dryl Allergy 25 mg Oral Capsule by Walgreen Co.
  • 0363-0223 Wal-som (Diphenhydramine Hydrochloride 25 mg) by Walgreen
  • 0363-0236 Diphenhydramine Hydrochloride 50 mg Oral Capsule by Walgreens
  • 655 more results ...

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
Methaqualone Diphenhydramine Why no mention of the sleeping pill Toquilone? It is a prescription-only drug containing 250mg methaqualone and 25mg dip... 1 reply
acetaminophen,diphenhydramine hcl, phenylephrine hcl green long oval, 44-464 ## This is just an over the counter cold remedy, dosing instructions and side effects should be ... 3 replies
Doxycycl Hycl 100mg And Diphenhydramine Hydrochloride 50mg What are the side effects when taken Doxy- Cycl Hycl 100mg with Diphenhydramine hydrochloride 50mg? One is for my acne a... 1 reply