Question 1

why are doctors recommending zantac (ranitidine) for an allergic reaction or hives?

Accepted Answer

Good question: Hives (or urticaria) represent a sensitivity to something dilating the small vessels under the skin, causing a raised pink lesion; if u press on it, it will blanch, let it go it pinks up again. Many causes: foods, chemicals, perfumes, very often stress. Stress can increase acid formation in stomach, Zantac (ranitidine) reduces it. Over 50% of time, one can't find cause. I treat initially c antihistamines.

Question 2

i had a allergic reaction to ciprofloxacin and the er doctor prescribed me zantac (ranitidine) for the allergic reaction is that normal?

Accepted Answer

No: Zantac (ranitidine) (a H2 reverse agonist) does nothing by itself to control allergic reactions although it may at times be helpful when used together with a classical antihistamine particularly for itchy hives.

Question 3

is zantac (ranitidine) used for allergies?

Accepted Answer

Not exactly: Zantac (ranitidine) is an h2 (histamine) blocker that is typically used for ge (acid) reflux.  However, it is commonly used to treat chronic hives in combination with traditional antihistamines.  It is also used for additional treatment of severe (anaphylaxis) allergic reactions although first line treatment is Epinephrine and h1 antihistamine.  It will not help allergic rhinitis.

Question 4

can i use ranitidine for allergies? and what is the dosage?

Accepted Answer

Not used: for allergy treatment on any routine basis.

Question 5

is zantac (ranitidine) (histamine blocker) used for children for allergies.?

Accepted Answer

See below: Zantac (ranitidine) is not effective for prevention of allergy symptoms. It blocks the h2 histamine receptor instead of the h1. I have seen use of both an h! and an h2 blocker for the treatment of chronic hives.

Question 6

can i give my 15 month old peptobismol? she keeps throwing up with no signs of fever or illness.  we have checked food allergies, ans gerd (taking zantac (ranitidine) 2x daily). i cannot figure out what's wrong :-(

Accepted Answer

I wouldn't: Pepto has salycilates which we don't give tom kids under 16 because of an association with liver failure/death (Reye syndrome).Wet burps that do not result in problems with hydration often decrease with age as the reflux improves.If the kid is growing well. I would leave it alone.

Question 7

2yrs ago i started having daily allergic reactions. (face mouth tongue swelling). i take claritin & zantac (ranitidine) daily.they can not find a cause. thoughts?

Accepted Answer

Not unusual: When urticaria and angioedema are continuous for more than 6 weeks there is often no obvious cause.  It is considered "idiopathic". The main object is to find a combination of medication to control the symptoms without having to use oral steroids like prednisone.  Make sure you are not taking  an "ace" medication which can predispose to this type of problem. It may be time to see an allergist.

Question 8

is it possible that zantac, being a histamine blocker, could cause higher histamine production when coming off of it, resulting in development of allergies? for example consuming diet soda can result in insulin spikes in some cases, possibly leading to di

Accepted Answer

No: Zantac (ranitidine) is a histamine 2 receptor reverse agonist and would not significantly affect histamine production.when withdrawn.  There is a theoretical possibility that Zantac (ranitidine) itself may lead to more histamine release by blocking the histamine 2 receptor(which acts as a feedback switch)  but this has not been clinically a significant issue.

Question 9

how accurate is skin prick testing for food allergies? according to the test, im allergic to many things. ive never had a problem eating them though, aside from occasional discomfort with digestion. i take zantac, could that have affected results?

Accepted Answer

Zantac not issue: There are e basic tests of food allergy/intolerance. A blood test that looks at antibodies to foods (helps identify dangerous items). The pin prick that is subject to a lot of variables to accurate interpretation. The 3 rd is a diet diary that you keep noting symptoms(within 4 days) related to consumption. All are nice guides, but the diary is probably the most  practical for planning your diet.

Question 10

ranitidine increased  appetite normal reaction ? taken 1 hour before propranolol in the morning and few hours after propranolol in evening

Accepted Answer

Yes: Some people do describe increased appetite as a side effect.  Pepcid may be a reasonable alternative

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Doctor answers about:

Ranitidine allergic reaction

A member asked:

Why are doctors recommending zantac (ranitidine) for an allergic reaction or hives?

A member asked:

I had a allergic reaction to ciprofloxacin and the er doctor prescribed me zantac (ranitidine) for the allergic reaction is that normal?

A member asked:

Is zantac (ranitidine) used for allergies?

A member asked:

Can i use ranitidine for allergies? and what is the dosage?

A member asked:

Is zantac (ranitidine) (histamine blocker) used for children for allergies.?

A member asked:

Can i give my 15 month old peptobismol? she keeps throwing up with no signs of fever or illness. we have checked food allergies, ans gerd (taking zantac (ranitidine) 2x daily). i cannot figure out what's wrong :-(

A member asked:

2yrs ago i started having daily allergic reactions. (face mouth tongue swelling). i take claritin & zantac (ranitidine) daily.they can not find a cause. thoughts?

A member asked:

Is it possible that zantac, being a histamine blocker, could cause higher histamine production when coming off of it, resulting in development of allergies? for example consuming diet soda can result in insulin spikes in some cases, possibly leading to di

A member asked:

How accurate is skin prick testing for food allergies? according to the test, im allergic to many things. ive never had a problem eating them though, aside from occasional discomfort with digestion. i take zantac, could that have affected results?

A member asked:

Ranitidine increased appetite normal reaction ? taken 1 hour before propranolol in the morning and few hours after propranolol in evening

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