Their research is reported in the June 21st issue of The Journal of the American Medical Association. This worry is often accompanied by irritability, restlessness, and difficulty in concentrating.
Physical symptoms can include cold, clammy hands, dry mouth, sweating, nausea, and diarrhea.
None of the patients had major depressive disorder or other serious psychiatric conditions. The patients taking venlafaxine showed significantly better results than those taking placebo, even in the first week of the study. Their scores on several measures of anxiety decreased more than those for the placebo group, and these differences were maintained through the entire 28 weeks. They note that the convenience of taking medication just once a day may help patients comply with treatment. Benzodiazepines can be addicting, and when used over a long period of time may start to lose their effect.