Carrots are rich in carotenes, which are substances related to vitamin A. They're found in the orange pigments and are good for you, but, if you eat lots and lots of carrots, you can develop a yellowish or orange cast to your skin. It's mostly noticeable on the soles of your feet and the palms of your hands.
Benadryl is another decongestant safe for use in cats, although it is usually not as effective as chlortrimeton in treating congestion. Benadryl is generally more beneficial with treating snake bites, reactions to vaccinations, itching, and insect bites.
Fluoxetine affects chemicals in the brain that cause depression, panic, anxiety, or obsession-compulsion. Fluoxetine is a prescription medication used in dogs and cats for the treatment of canine aggression and obsessive-compulsive disorder. Fluoxetine is available as 10mg tablets and 20mg capsules. The usual dose is dependant on the condition being treated and the animal's response to treatment.