If an antihistamine like zyrtec suddenly feels as though it s not working like your eyes are red or mucus is everywhere you re okay to switch to another.
Cat allergy antihistamine not working.
Most people do not build a tolerance or develop immunity to allergy medication.
Some antihistamines can cause problems if your cat has a pre existing medical condition particularly heart or digestive problems.
If you ve been taking antihistamines for years and they re not working now kao says talk to your doctor about something stronger such as allergy shots more pollen days.
The active ingredient relieves allergy symptoms without making you feel sluggish or causing other side effects.
The body absorbs both antihistamines quickly but zyrtec seems to work faster for some people.
To combat these symptoms your veterinarian may prescribe a cat antihistamine for allergy relief.
A cat with a feline allergy produces histamine to help his body cope with the affecting allergen.
How to deal with cat allergies.
Benadryl is a first generation antihistamine which makes it sedating so.
Prescription antihistamines taken as a nasal spray include azelastine astelin astepro and olopatadine patanase.
If you do get the go ahead from your vet stick to the dose she recommends and do not give your pet more than that.
Otc antihistamine syrups are available for children.
But it s not uncommon for antihistamines to be ineffective.
That s why i ve chosen allegra 24 hour gel caps as the best antihistamine for cat allergies.
Do not assume that if a medication is ok for one cat it is ok for another.
The histamine in fact is what produces the common symptoms of feline allergies.
Occasionally the drug can work as a mild sedative that you can use during long car trips.
The antihistamine still blocks histamine in your body at the same level as earlier in the season but if you didn t.
Over the counter otc antihistamine tablets include fexofenadine allegra allergy loratadine claritin alavert and cetirizine zyrtec allergy.
Benadryl is most commonly used for itchy or allergic skin reactions vaccine reactions or bug bites.
Studies on the effectiveness of antihistamines for.