Have medical questions? Ask a doctor online!

Ask a Doctor, Get an Answer ASAP!

Antihistamine Medication

Antihistamines are used to block the histamine receptors in the body that release histamine. By doing so, allergy symptoms are kept under control. There are a variety of over the counter antihistamines but some antihistamines require a prescription. A common side effect of many antihistamines is drowsiness. To learn more about antihistamines, take a look below at the questions that have been answered by Experts.

Can antihistamine eye drops is taken with Tylenol multi allergy tablets?

Generally an antihistamine eye drop may be used when taking Tylenol multi allergy tables. While the Tylenol may treat the eyes, some people cannot receive enough relief from the allergy tabs alone. Tylenol multi allergy medicine tends to make a person very drowsy. Therefore people are usually encouraged to avoid driving or using heavy machinery. People who have a history of glaucoma issues may consider speaking with a doctor prior to using the Tylenol multi allergy tabs.7

Will Benadryl stop itch lotion effect an allergy test?

Generally Benadryl itch lotion provides a local effect and very tiny amounts of an itch lotion ever reach the blood stream. For this reason the itch lotions usually have no effect on an allergy test. However a person may consider not using an itch lotion prior to taking an allergy test just to be safe. If the person is unable to endure the itch small amounts of itch lotion should be fine.

Should an antihistamine or decongestant be taken for ears that are stuffed up, popping and cracking?

In most cases such as this, a decongestant may be a doctor's go-to treatment. If the person cannot make it to see a doctor, Sudafed, twice a day, may help with the above mentioned symptoms. Another over the counter treatment may include the use of decongestant spray. Antihistamine may help, however; some people don't care for the side effects.

When should the antihistamine Benadryl not be taken, can it be taken with xanax or valium?

Benadryl may not be the best option for anyone who suffers from the following conditions; hypertension, glaucoma, peptic ulcer, heart disease, asthma, hyperthyroidism, enlarged prostate, bladder problems. If there isn't an alternative to Benadryl, a doctor may be required to adjust the dosage.

Due to the possible drug interaction with other medications, it is best to check with the individual's doctor prior to using Benadryl. Benadryl does interact with xanax and valium as well as several other anti-anxiety drugs.

How do antihistamines help with allergies?

An antihistamine blocks histamine receptors which keep the body from releasing histamine. Many over the counter antihistamines may make a person very drowsy. Allergy tests may be required to determine what is causing a person's symptoms. There are prescription medications that are less likely to have the drowsiness effect.

Many people suffer from allergies and rely on antihistamines to treat the symptoms of allergies. While some antihistamines may make a person drowsy, people are encouraged to avoid driving or operating heavy machinery until the person knows how the medicine will affect them. Many questions may arise when trying to find the appropriate allergy medicine. If a person has questions or concerns regarding antihistamines, the person should ask an Expert for medical insight and proper treatment suggestions.
Please type your question in the field below

3 verified Doctors are online now

Doctors on JustAnswer are verified through an extensive 8-step process including screening of licenses, certifications, education and/or employment. Learn more

Family Physician


Doctoral Degree

2592 positive reviews
Dr. Ketch

Board Certified Physician

MD, Medical Doctor

76 positive reviews

Board Certified Physician

51788 positive reviews
See all Doctors