dear pakeeza ,
have you consulted your vet regarding the problem of your cat see dear lack of appetite ,weakness ,lethargic behavior in cats can be due to many reasons it could be common fever or due to external parasitic infections such as worms or fleas or any other chronic disease it can be also starting symptoms of feline leukemia which is fatal for cats see dear many remedies weather homeopathic, Allopathic or even herbal can which is commonly use for dogs or any other animals can be fatal for cats for example paracetamol which is used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer) is poisonous for cats even very small doses can be fatal and need immediate treatment similarly aspirin, which is sometimes used to treat arthritis in cats, is much more toxic to them than to humans and must be administered cautiously similarly minoxidil which is commonly used for fur loss in many animals is proved fatal for cats .in homeopathy also many compounds such as five phos compound can cause serious troubles in cats. herbal y also many essential oils ,or remedies such as ginger ,Holy Basil is can be poisonous for cats so dear first contact your vet know the correct cause of illness of your cat and then ask for remedies .

Answered by Himanshu , an ibibo Advisor, at 12:43 AM on September 21, 2009