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Ala Hist IR

Generic Name: Dexbrompheniramine [DEX-brom-fen-IR-a-meen]
The brand Names are Ala Hist IR and PediaVent.
Drug class: Antihistamines

What is Ala Hist IR?

Ala Hist IR is an antihistamine that decreases the effects of the natural chemical histamine that is present in our body. Histamine is known to cause nasal congestion, itching, watery eyes, and a runny nose.

Ala Hist IR is used to treat a runny nose, itching, sneezing, and eyes that are watery due to allergies or itchy eyes. commonly-acquired cold as well as influenza.

Ala Hist IR may also be used for other purposes that are not mentioned in this guideline.

Side Effects of Ala Hist IR

See a doctor immediately. If you are experiencing symptoms that are warning signs of an allergic response, like hives, trouble breathing, or swelling of your lips, face, and tongue,

Ala Hist IR may cause severe adverse consequences. Take a break from Ala Hist IR and call your physician immediately in the event that you suffer from:

  • Heart rate that is irregular or fast;

  • Mood swings;

  • Tremor, seizure (convulsions);

  • Bleeding or bruising that is easy or bleeding; uncommon weakness;

  • Experiencing a lack of breath and feeling breathless;

  • Very little or no urination.

Common negative side effects from Ala Hist IR can include:

  • Drowsiness;

  • Dry mouth, nose, dry mouth, or throat;

  • Constipation;

  • Blurred vision 

  • Experiencing a sense of anxiety or excitement (especially when it comes to children).

This is not a comprehensive list of possible side effects, and other effects may also be present. Consult your physician for advice regarding medical effects. You can report any side effects to the FDA at 1-800-FDA-1088.


It is not recommended to use antihistamine medication to make your child restless.

Before you Take this Drug 

Speak with a physician or pharmacist about whether it is appropriate for you to take Ala Hist IR if you are suffering from any other medical condition, particularly:

  • Asthma or chronic bronchitis;

  • Glaucoma; 

  • Increased prostate and urinary tract problems.

It isn't known if Ala Hist IR will harm the unborn baby. Consult a physician before taking this medicine if you are expecting.

It isn't known if dexbrompheniramine gets into breast milk or whether it can cause adverse effects on the nursing infant. Antihistamines could also affect the production of breastmilk. Talk to your doctor before taking this medication if you are breastfeeding.

How to Ala Hist IR?

Take it exactly as indicated on the label or as recommended by your physician. Do not take it in greater than smaller amounts or for longer periods than prescribed. The medicine is typically taken only for a short period of time until symptoms improve.

Do not take more than seven consecutive days. Contact your physician if your symptoms do not improve after seven days of treatment or if you suffer from symptoms such as a headache, fever, cough, or the appearance of a skin rash.

Avoid giving this medicine to a child who is less than 4. Always consult a doctor prior to giving any cold or cough medicine to children. Death can occur due to improper use of cough or cold medications in very young children.

Don't give the medication to children younger than 6 years of age without medical guidance.

It is not recommended to use antihistamine medication to make your child tired.

If you are in need of an operation or other medical examination, inform your doctor or surgeon before the appointment time if you have taken this medicine in the last few days.

Place it in a cool, dry place far from heat and moisture. Don't let the liquid version of this medication freeze.

What Happens If I Miss the Dose?

Because Ala Hist IR is used whenever needed, you may not be following a dosing schedule. If you're in a routine, you should take the missed dose as quickly as you can remember. Avoid your missed dose if it's close to the time of the next dose scheduled. Don't use any extra medication to make up for the missed dose.

What Happens If I Overdose?

For medical emergencies, seek emergency medical attention or contact the Poison Help line toll-free at 1-800-222-1222.

What Should be Avoided? 

Ala Hist IR may cause blurred vision or affect your ability to think or react. Be aware if you drive or do any other activity in which you need to stay conscious and in a position to clearly see.

Alcohol consumption can cause an increase in the effects of dexbrompheniramine in certain ways.

Consult a physician or pharmacist prior to using or taking any allergy or cold medication. A number of combination medicines comprise Ala Hist IR or a similar antihistamine. Combining certain medicines could result in you consuming excessive amounts of this medication.

Beware of becoming dehydrated or overheated when exercising in hot temperatures. Hist IR can decrease sweating and make you more vulnerable to suffering from a heart attack.

Interaction with Other Drugs 

Talk to your doctor or pharmacist before taking this medication if you're also taking other medicines, such as prescription and over-the-counter medications, vitamins, and herbal products. Certain medications can trigger unwanted or harmful effects when combined. Some interactions may not be included in this guideline for medications.

If you take this medicine in conjunction with other medicines that make you sleepy or cause breathing problems, it can increase the severity of these effects. Talk to your doctor prior to taking Ala Hist Ir with sleeping tablets, opioid pain medication such as muscle relaxers, or medicines to treat anxiety, depression, or seizures.



Prescription only

Pregnancy & Lactation

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