Benzodiazepines such as Xanax, Valium, Librium, and Klonopin work pretty good. Of those four Klonopin is the easiest to get a doctor to write for long term and should work as long as no seizure activity is involved. If seizure activity is involved then Xanax is the best IMO. The trick is a maintenance level of the lowest dosage of Xanax that works. That is usually .5mg for most persons. If a doctor writes it for lets say 1-2 mg twice per day that is a disaster waiting to happen and will eventually make things worse. But a 2mg pill split into four doseages a day usually every 6-8 hours will work.
Benzo's have a bad reputation mainly due to ignorance on the part of prescribing doctor writing too strong a dosage and too far apart or writing it too those who drink alcohol in excess. The doctor and patient have to understand how too take it. Yes there is a risk for dependency. On the other hand on some days I've gone up too 12 hours without it others I have too have all four doses that day.
The thing that burns me is persons with anxiety attacks and PTSD need help now. Antidepressants can take up too a month too fully work and usually no relief at all for the first week. A Benzo starts working in a few minutes or in the case of Xanax within 5 minutes when placed under the tongue. If there is an adverse reaction it takes the antidepressants up too several weeks to leave the body. The adverse reaction in a male can mean bladder blockage which is also very dangerous and requires imediate medical attention or you will go into shock. Been there done that too. A Benzo is usually gone within 12 hours at max. Benzo's also do not have the Serotonin Syndrome risk as they are actually the antidote for it.
What bugs me most, is that they give you a pill and consider it dwalt with.