Severe reactions, like anaphylaxis, can be life-threatening and should be treated by a veterinarian (who may give an injection of diphenhydramine along with other emergency injections). Symptoms of allergic reactions that can be treated with Benadryl include hives, swelling, and itching. The active ingredient in Benadryl is diphenhydramine, which works by blocking histamine receptors on a cell’s surface, meaning that the receptors cannot ‘accept’ histamine that tries to attach and trigger an allergic reaction. Histamine is a substance released by mast cells (a type of immune cell) and is responsible for inflammation and other allergy symptoms. Benadryl is a brand name for an antihistamine (diphenhydramine HCl) that can help alleviate symptoms of allergic reactions and even anxiety. Know the correct dosage for your dog, and keep a close eye on them for adverse reactions.īenadryl is not yet FDA-approved for veterinary use, but it is generally considered safe for use in dogs with mild-to-moderate allergies.Benadryl is a relatively safe and effective medication for both dogs and cats, but you should check with your vet first.Benadryl is a brand name for an antihistamine (diphenhydramine HCl) that can help alleviate symptoms of allergic reactions and even anxiety.Make sure lab personnel and all your doctors know you use this drug.
This medication may interfere with certain lab tests, possibly causing false test results. If your brand of multivitamin also contains folic acid, be sure to tell your doctor or pharmacist if you take certain anti- seizure drugs (including hydantoins such as phenytoin). Ask your doctor or pharmacist about how long you should wait between doses and for help finding a dosing schedule that will work with all your medications. If your brand of multivitamin also contains iron, avoid taking this product at the same time as antacids, bisphosphonates (for example, alendronate), levodopa, thyroid medications (for example, levothyroxine), or some antibiotics (for example, tetracyclines, quinolones such as ciprofloxacin). Some products that may interact with this drug are: other vitamin/nutritional supplements. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. This document does not contain all possible drug interactions. Consult your doctor before breast-feeding.ĭrug interactions may change how your medications work or increase your risk for serious side effects. Tell your doctor if you are pregnant before using this medication. Consult your doctor or pharmacist for details. Untreated vitamin B12 deficiency may result in serious nerve problems (such as peripheral neuropathy). Folic acid may affect certain laboratory tests for vitamin B12 deficiency without treating this anemia. If your brand of multivitamin also contains folic acid, be sure to tell your doctor or pharmacist if you have vitamin B12 deficiency ( pernicious anemia) before taking it.
Talk to your pharmacist for more details.īefore taking this medication, tell your doctor or pharmacist your medical history, especially of: use/abuse of alcohol, liver problems, stomach/intestinal problems (such as ulcer, colitis). This product may contain inactive ingredients, which can cause allergic reactions or other problems. You may report side effects to Health Canada at 1-86.īefore taking this product, tell your doctor or pharmacist if you are allergic to any of its ingredients or to soy/peanut found in some brands or if you have any other allergies. You may report side effects to FDA at 1-80 or at In Canada - Call your doctor for medical advice about side effects. In the US - Call your doctor for medical advice about side effects. If you notice other effects not listed above, contact your doctor or pharmacist. This is not a complete list of possible side effects. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/ tongue/throat), severe dizziness, trouble breathing. Many people using this medication do not have serious side effects.Ī very serious allergic reaction to this drug is rare.
If your doctor has prescribed this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. If any of these effects last or get worse, tell your doctor or pharmacist promptly. These effects are usually temporary and may disappear as your body adjusts to this medication. Constipation, diarrhea, or upset stomach may occur.
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