A simple classification of antipsychotic drugs commonly used in clinical practice today is old drugs (first generation, classical or traditional are a meaning) and new drugs (second generation, non-classical) by time of clinical use, injection and oral by method of use, and short-acting (daily use) and long-acting (weekly or semi-monthly or January) by duration of action. I will broadly introduce the old drugs that are widely used after the middle page of the last century, I will only talk about the drugs that are still used in our hospital, only the names (the specific selection of drugs need to be discussed with families, patients and doctors) including chlorpromazine (dormantine), haloperidol, fenadine, fluphenazine, chlorprothixene (Telden), thioridazine, pentafluridol, sulpiride, clozapine (these two drugs are between the old and new). New drugs (I’ll just say the chemical name, the trade name distinguishes too many different manufacturers) include risperidone, aripiprazole, olanzapine, quetiapine, amisulpride, paliperidone, ziprasidone, and later lurasidone, brunanserin, and ibuprostone. (The old drugs are sometimes out of stock, but the new ones are basically available). The difference in efficacy between the old and new drugs is not too great, mainly because the side effects are not quite the same, and the price difference is almost worldly. The above mentioned drugs are oral, the injections are the following old drugs long-acting injections are fluphenazine decanoate injection, haloperidol decanoate injection, perphenazine palmitate injection (now we have no drugs in the hospital), these are old drugs, can be injected once a month (the specific medication interval to vary from person to person). The quick-acting ones are haloperidol injection and ziprasidone injection, both of which are used in the acute phase for a short period of time. There are also foreign injections of olanzapine and aripiprazole, which seem to be fast-acting. Long-acting injections of new drugs include risperidone microsphere injection (once every 2 weeks) and paliperidone palmitate injection (once a month), which are very expensive. Both are currently imported. The domestically produced Risperidone microsphere injection is already in clinical research and should be quite cheap if it is marketed. Finally, there is an oral long-acting drug, pentoxifylline, which is taken once a week. The general situation is this, the reason why I am writing this is to introduce to patients and families the range of drugs available to them, today in the clinic asked a few family members, there are indeed patients who prefer to use injections, but before really little to introduce to patients and families there are injections to choose this thing. Ease of use and long-term adequate dosing is the key of keys to relapse prevention. A monthly shot does save a lot of time compared to taking medication every day. Just telling people there is this option available.