You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In ophthalmology, a patient is allergic to aminoesters. What can be used ? and explain in detail?
Ans. is 'c' i.e., Prilocaine Prilocaine is an amide (aminoamide). Other three are aminoesters Aminoesters Aminoamides Procaine Chloroprocaine Tetracaine (Amethocaine) Benzocaine Cocaine Esters are metabolised by pseudocholinesterase except cocaine which is metabolised by liver) High incidence of allergic reactions which are because of para aminobenzoic acid Not bind to plasma protein Solutions are not stable Lignocaine Mepivacaine Prilocaine Bupivacine Etidocaine Ropivacaine Dibucaine o Amides are metabolised primarily in liver --> Action is longer Low incidence of allergic reactions Bind to a, acid glycoprotein Solutions are stable (not destroyed even byq autoclaving).