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Drug Interactions and Side Effects of Antihistamine

Antihistamine has 29 Side Effects total
5 are Life Threatening
2 Occur Most Frequently

Uses of Antihistamine
 
Antihistamine is also known by the generic name Clemastine-Phenylprop


Antihistamine is also known by the generic name Diphenhydramine Hcl


Antihistamine is also known by the generic name Triprolidine-Pseudoephedrine


USES:
This combination medication is used to temporarily relieve symptoms caused by the common cold, flu, allergies, or other breathing illnesses (such as sinusitis, bronchitis). Antihistamines help relieve watery eyes, itchy eyes/nose/throat, runny nose, and sneezing. Decongestants help to relieve stuffy nose and ear congestion symptoms.

If you are self-treating with this medication, carefully read the package instructions to be sure it is right for you before you start using this product. Some products have similar brand names but different active ingredients with different uses. Taking the wrong product could harm you. Ask your pharmacist if you have any questions about your product or its use.

Cough-and-cold products have not been shown to be safe or effective in children younger than 6 years. Therefore, do not use this product to treat cold symptoms in children younger than 6 years unless specifically directed by the doctor. Some products (including some long-acting tablets/capsules) are not recommended for use in children younger than 12 years. Ask your doctor or pharmacist for more details about using your product safely. Do not use this product to make a child sleepy.

These products do not cure or shorten the length of the common cold and may cause serious side effects. To decrease the risk for serious side effects, carefully follow all dosage directions. Do not give other cough-and-cold medication that might contain the same or similar ingredients (see also Drug Interactions section). Ask the doctor or pharmacist about other ways to relieve cough and cold symptoms (such as drinking enough fluids, using a humidifier or saline nose drops/spray).


Antihistamine has 5 Life Threatening (Critical) Side Effects
 
Critical Seriousness - Blood Disorder - Blood Dyscrasias is a Life Threatening Side Effect of Antihistamine
Critical Seriousness - Extra Heartbeat - Extrasystoles is a Life Threatening Side Effect of Antihistamine
Critical Seriousness - Fit - Tonic Clonic Seizure is a Life Threatening Side Effect of Antihistamine
Critical Seriousness - Hallucination - Hallucinations is a Life Threatening Side Effect of Antihistamine
Critical Seriousness - Reaction due to an Allergy - Allergic Reactions is a Life Threatening Side Effect of Antihistamine

Antihistamine has 2 Most Frequently Occurring Side Effects
 
An Increase in the Thickness of Lung Secretions - Thick Bronchial Secretions is a Frequently Occurring Side Effect of Antihistamine
Drowsiness - Drowsy is a Frequently Occurring Side Effect of Antihistamine

Antihistamine Drug-Drug Interactions
 
Antihistamine has interactions of severe seriousness with 0 drug(s):

Antihistamine has interactions of serious seriousness with 3 drug(s).

Antihistamine has interactions of moderate seriousness with 0 drug(s).

Antihistamine has interactions of unknown seriousness with 0 drug(s).

Antihistamine has 9 Condition Contraindications
 
If you have any of these Conditions then you should carefully evaluate the risks of taking Antihistamine.

Antihistamine Oral Contraindications
(grouped by decreasing seriouosness level)

Relative Contraindications 

Benign Prostatic Hypertrophy - Enlarged Prostate is a contraindication of Antihistamine.

Bladder Outflow Obstruction - Blockage of Urinary Bladder is a contraindication of Antihistamine.

Chronic Idiopathic Constipation - Chronic Difficulty having a Bowel Movement is a contraindication of Antihistamine.

Narrow Angle Glaucoma - Closed Angle Glaucoma is a contraindication of Antihistamine.

Stenosing Peptic Ulcer is a contraindication of Antihistamine.

Urinary Retention - Cannot Empty Bladder is a contraindication of Antihistamine.

Contraindication Warnings 

Hypertension - High Blood Pressure is a contraindication of Antihistamine.

Hyperthyroidism - Overactive Thyroid Gland is a contraindication of Antihistamine.

Ocular Hypertension - Increased Pressure in the Eye is a contraindication of Antihistamine.

Antihistamine has 144 related brands and strengths:
 
Aler-Cap 25 Mg Cap

Aler-Tab 25 Mg Tab

Allerfrim 1.25 Mg-30 Mg/5 Ml Syrup

Allergy (Diphenhydramine) 12.5 Mg/5 Ml Oral Liquid

Allergy (Diphenhydramine) 25 Mg Cap

Allergy (Diphenhydramine) 25 Mg Tab

Allergy Cream 2 % Topical

Allergy Medication 12.5 Mg/5 Ml Oral Liquid

Allergy Medication 25 Mg Cap

Allergy Medicine 12.5 Mg/5 Ml Oral Liquid

Allergy Medicine 25 Mg Cap

Allergy Medicine 25 Mg Tab

Allergy Relief 12.5 Mg/5 Ml Oral Liquid

Allergy Relief 25 Mg Cap

Allergy Relief 25 Mg Tab

Anti-Itch 2 % Topical Cream

Anti-Itch 2 % Topical Gel

Anti-Itch 2 % Topical Spray

Anti-Itch Maximum Strength 2 % Topical Spray

Antihist 12.5 Mg/5 Ml Elixir

Antihistamine 25 Mg Cap

Antihistamine 25 Mg Tab

Aprodine 2.5 Mg-60 Mg Tab

Banophen 12.5 Mg/5 Ml Oral Liquid

Banophen 25 Mg Cap

Banophen 25 Mg Tab

Banophen Allergy 12.5 Mg/5 Ml Oral Liquid

Benadryl 25 Mg Cap

Benadryl Allergy 12.5 Mg/5 Ml Oral Liquid

Benadryl Allergy 25 Mg Tab

Benadryl Allergy Quick Dissolve 25 Mg Oral Strips

Benadryl Fastmelt 12.5 Mg Chewable Tab

Benadryl Itch Stopping 2 % Topical Gel

Benadryl Maximum Strength 2 % Topical Spray

Children's Allergy 12.5 Mg Chewable Tab

Children's Allergy 12.5 Mg/5 Ml Elixir

Children's Allergy 12.5 Mg/5 Ml Oral Liquid

Children's Benadryl Allergy 12.5 Mg/5 Ml Prefilled Spoon

Children's Wal-Dryl Allergy 12.5 Mg/5 Ml Oral Liquid

Cold & Allergy 2.5 Mg-60 Mg Tab

Cold-Allergy-Sinus 2.5 Mg-60 Mg Tab

Complete Allergy 12.5 Mg Chewable Tab

Complete Allergy 12.5 Mg/5 Ml Oral Liquid

Complete Allergy 25 Mg Cap

Complete Allergy 25 Mg Tab

Complete Allergy Medicine 25 Mg Cap

Complete Allergy Medicine 25 Mg Tab

Complete Allergy Medicine 50 Mg Cap

Compoz 25 Mg Tab

Compoz 50 Mg Tab

Derma-Pax 0.5 % Lotion

Dicopanol 25 Mg/5 Ml Oral Susp

Diphedryl 12.5 Mg/5 Ml Oral Liquid

Diphedryl 25 Mg Cap

Diphedryl 25 Mg Tab

Diphedryl Allergy 12.5 Mg/5 Ml Oral Liquid

Diphen 25 Mg Cap

Diphenhist 12.5 Mg/5 Ml Oral Liquid

Diphenhist 25 Mg Cap

Diphenhist 25 Mg Tab

Diphenhist 50 Mg Tab

Diphenhydramine 0.5 % Lotion

Diphenhydramine 12.5 Mg Chewable Tab

Diphenhydramine 12.5 Mg Oral Strips

Diphenhydramine 12.5 Mg/5 Ml Elixir

Diphenhydramine 12.5 Mg/5 Ml Oral Liquid

Diphenhydramine 12.5 Mg/5 Ml Prefilled Spoon

Diphenhydramine 12.5 Mg/5 Ml Syrup

Diphenhydramine 2 % Topical Cream

Diphenhydramine 2 % Topical Gel

Diphenhydramine 2 % Topical Spray

Diphenhydramine 25 Mg Cap

Diphenhydramine 25 Mg Oral Strips

Diphenhydramine 25 Mg Tab

Diphenhydramine 25 Mg Tab, Rapid Dissolve

Diphenhydramine 25 Mg/5 Ml Oral Susp

Diphenhydramine 50 Mg Cap

Diphenhydramine 50 Mg Tab

Diphenhydramine 50 Mg/Ml Injection

Diphenhydramine 50 Mg/Ml Syringe

Dytuss 12.5 Mg/5 Ml Syrup

Genac 2.5 Mg-60 Mg Tab

Hist-Pse 0.938 Mg-10 Mg/Ml Oral Liquid

Itch Relief 2 % Topical Gel

Itch Relief 2 % Topical Spray

Medi-Phedryl 12.5 Mg/5 Ml Oral Liquid

Medi-Phedryl 25 Mg Cap

Nasal Decongest-Antihistamine 2.5 Mg-60 Mg Tab

Nasal Decongestant 1.25 Mg-30 Mg/5 Ml Syrup

Nasal Decongestant 2.5 Mg-60 Mg Tab

Nasal Decongestant-Antihist 2.5 Mg-60 Mg Tab

Nightime Sleep 50 Mg Cap

Nighttime Sleep Aid (Diphenhydramine) 25 Mg Tab

Nighttime Sleep Aid (Diphenhydramine) 50 Mg Cap

Nytol 25 Mg Tab

Nytol 50 Mg Cap

Pediatex Td 0.938 Mg-10 Mg/Ml Oral Liquid

Pseudo-Trip 2.5 Mg-60 Mg Tab

Q-Dryl 12.5 Mg/5 Ml Oral Liquid

Q-Dryl 25 Mg Cap

Quenalin 12.5 Mg/5 Ml Syrup

Rest Simply 25 Mg Tab

Rest Simply Nighttime Sleep 25 Mg Tab

Restfully Sleep 25 Mg Tab

Ritifed 1.25 Mg-30 Mg/5 Ml Syrup

Siladryl Sa 12.5 Mg/5 Ml Oral Liquid

Silafed 1.25 Mg-30 Mg/5 Ml Syrup

Silphen Cough 12.5 Mg/5 Ml Syrup

Simply Allergy 25 Mg Tab

Simply Sleep 25 Mg Tab

Sleep 25 Mg Tab

Sleep Aid (Diphenhydramine) 25 Mg Tab

Sleep Aid (Diphenhydramine) 50 Mg Cap

Sleep Aid Max Strength (Diphenhydramine) 50 Mg Cap

Sleep Ii 25 Mg Tab

Sleep Tablet (Diphenhydramine) 25 Mg Tab

Sleep-Eze 3 25 Mg Tab

Sleep-Tabs 25 Mg Tab

Sleepgels 50 Mg Cap

Sleeping 50 Mg Cap

Sominex 25 Mg Tab

Sominex Maximum Strength 50 Mg Tab

Theraflu Multi Symptom 25 Mg Oral Strips

Triaminic Allergy 12.5 Mg Oral Strips

Triaminic Cough/Runny Nose 12.5 Mg Oral Strips

Trip-Pse 0.938 Mg-10 Mg/Ml Oral Liquid

Triprolidine-Pseudoephedrine 0.938 Mg-10 Mg/Ml Oral Liquid

Triprolidine-Pseudoephedrine 1.25 Mg-30 Mg/5 Ml Syrup

Triprolidine-Pseudoephedrine 2.5 Mg-60 Mg Tab

Trymine D 1.25 Mg-30 Mg/5 Ml Syrup

Unisom Sleepgels 50 Mg Cap

Unisom Sleepmelts 25 Mg

Valu-Dryl 12.5 Mg Chewable Tab

Valu-Dryl Allergy 12.5 Mg/5 Ml Oral Liquid

Valu-Dryl Allergy 25 Mg Cap

Valu-Dryl Allergy 25 Mg Tab

Valu-Dryl Anti-Itch 2 % Topical Cream

Valu-Dryl Child's Allergy 12.5 Mg/5 Ml Elixir

Wal-Act 2.5 Mg-60 Mg Tab

Wal-Dryl Allergy 12.5 Mg/5 Ml Oral Liquid

Wal-Dryl Allergy 25 Mg Cap

Wal-Dryl Allergy 25 Mg Tab

Wal-Dryl Anti-Itch 2 % Topical Spray

Wal-Som 50 Mg Cap

Antihistamine - Symptoms of overdose may include
irregular heartbeat, hallucinations, fainting, seizures.

Contact poison control
If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly.

IMPORTANT NOTICE: The drug information contained in this application is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not exhaustive and is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment. The display and use of this drug information is subject to express terms of use. By continuing to view the drug information on this site, you agree to abide by such terms of use.
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