Doctor insights on:
Fast Acting Antihistamine
Can my body start acting diffrent after taking a certain amount of Benadryl (diphenhydramine) for months?
Benadryl (diphenhydramine): It is not clear to me what you mean by "acting different". what are you experiencing? ...Read more
Are there any immediate acting allergy medications I can take other than Benadryl (diphenhydramine)?
Am taking 24hr alegra but my allergies still act up at night, so I take a Benadryl (diphenhydramine) at night too?
I wanted to know I took benadryl (diphenhydramine) because my allergies are acting up and I'm stuffed up, I have a cough, I'm weeding because my asthma as well. Is it o?
Probably not: I presume you are asking whether it is ok to do some weeding when your nose is stuffed up and your asthma is not controlled. In general, the answer would be no since you are likely allergic to weed pollen and molds from the disturbed soil. It is also important for you to call your doctor about your asthma. Benadryl (diphenhydramine) or any other antihistamine has no decongesting action, nasal steroid does. ...Read more
Just took 25 mg of Benadryl (diphenhydramine) will that counter-act/ make my Prozac and klonopin that I took earlier not effective?
My doctor prescribed me trazodone 100 mg for sleep and I am now experiencing pins and needles all over. I took 4 Benadryl (diphenhydramine) to counter act.
Oversedating: It is not a good idea to combine sedating medications. The trazadone was given to help you sleep and taking additional 4 Benadryl (diphenhydramine) which I assume is 100mg will add too much extra sedation on top. If the side effects of trazadone are bothersome I recommend discussing other options with your doctor instead of taking a lot of other medications to mask symptoms. ...Read more
Having eye surgery in two days. I have allergies and take Benadryl (diphenhydramine) or Zyrtec when the act up. Can I still take them 24 - 48 hrs before surgery?
Check with dr: Only your healthcare team can answer this. ...Read more
A small neck rash a few days prior to getting a full body rash very quickly. Appears in a.M. Before foods or meds. Clears fast with no antihistamine?
Urticaria refers to a group of disorders affecting adults and children, in which red patches and weals occur in the skin. A wheel is a swelling of the surface skin.
The skin swelling seen in urticaria is due to the release of chemicals such as histamine from mast cells in the skin which causes small blood vessels to leak. Treatment is with antihistamine or avoidance of the causative agent. ...Read more
I took a Zyrtec and Flonase this morning. Would like to take muscinex fast max with antihistamine for the evening and wondering if that is ok?
Fast and easy ways to reduce redness in the morning before school? Wash with cold water, witch hazel, antihistamine?
I have an itchy, fast spreading, chicken like skin on my chest. I have taken antihistamines but it does not cure anything..
Please see: Please see your dermatologist for evaluation and to discuss treatment options. ...Read more
How fast would a rash subside when using: antibiotics, cortisone, antihistamines and topical creams at the same time? Any chance it would do nothing?
Rash: It all depends on the cause of the rash. If it is an allergic rash for something topical like soap for instance then topical cortisone cream would be a good option for itching and redness. Antihistamines would help redness and swelling for an allergy rash. Antibiotic ointment help for topical bacterial infections. If you are having shingles (herpes zoster) none of these will help. ...Read more
When ever I'm not taken an antihistamine like Clariten or Zyrtec (cetirizine) and I am walking fast like to class I get extremely itchy like in my thigh region?
Itchy: You might have dermatographism which is a physical urticaria from rubbing the skin. Rubbing, pressure or scratching your skin can cause a hive or wheal to develop which can be intensely itchy Your doctor can test you for this if you are not taking antihistamines at the time you are examined. Antihistamines are an effective treatment of this condition ...Read more
Are there any short acting anti-histamines? (i often have insomnia in the early morning when it is too late to take a unisom.)
Yes: Sounds like you are looking for an antihistamine for its sedative effects. Diphenhydramine is marketed as Benadryl (diphenhydramine) for treatment of hives and allergic rhinitis and sominex for insomnia. The dose is the same 25-50 mg for adults. Diphenhydramine begins to work in 30 minutes. Its effects last about 4-6 hours. ...Read more
No: It has neither property.Get a more detailed answer ›
Is it bad to take an antihistamine during a cold, i.e. does suppressing mucus make the cold last longer?
No value: Antihistamines have no value in the treatment of viral illnesses. ...Read more
No: Antihistamines are a class of medication used since the 1940s. They are used to treat allergic conditions and are very safe. The newer generation antihistamines have even less side effects compared to first generation or old antihistamines. ...Read more
Yes: Butterbur has antihistamine-like effects. It can be found at health food stores. ...Read more
Yes: The drug will not affect the success of the vaccination or cause any negative reaction. ...Read more
Older ones do:
First generation antihistamines (benadryl, clor-pheramine, atarax) cross the blood brain barrier and cause lethargy.
Second generation (allegra, claritin, zyrtec, xyzal, (levocetirizine) clarinex) cause the blood brain barrier at a much lesser amount and more targeted to the h1 receptor. ...Read more
Yes but why: Although antihistamines are a very safe class of medications, the better question is why is there a need to take them daily? If antihistamines are being taken for treatment of nasal symptoms, see an allergist to identify the trigger. ...Read more
Several are good: Loratedine (Alavert, Claritin), Cetirizine (Zyrtec)and Fexofenadine (Allegra)are all effective. Dyphenhydramine (Benadryl) is short acting so if you want the reaction not to come back in the middle of the night then one of the above would be better. Remember that you should not give children under 2 antihistamines without checking with your doctor. Between 2-4 y/o you should also ask. Not for colds ...Read more
There are two important considerations. Efficacy and side effects. Caution must be taken with combination meds (antihistamines along with decongestants). Men with prostate issues and anyone with cardiac/BP issues.
Also glaucoma can be affected especially by first generation antihistamines such as Benadryl (diphenhydramine). Best bet, ask your doctor :-) ...Read more
Antihistamines are traditionally used to treat allergic reactions. I am curious as to what exactly what happens to you in response to specific antihistamines: benadryl, (diphenhydramine) zyrtec, Claritin etc.
Pepcid is a medication that inhibits acid production by the stomach and would be helpful for treatment of heartburn, indigestion (dyspepsia), gastitis (stomach inflammation) or reflux of acid ...Read more
Maybe: Medications that have passed the expiration may still work, but the pharmaceutical manufacturer cannot guarantee their effectiveness. The longer the medication is out of date, the more likely they are less effective. ...Read more