"i have been taking paxil 20mg for about 4 months now. i suffered with anxiety which caused lightheadedness and shortness of breath for two years before i decided to try medication.  when i first started, i had more anxiety than ever and some depression which i never had before taking this medication. it took about six weeks to feel the effects and it works. to those out there struggling with this medication just give it the 6-8 weeks to work before giving up. also, try relaxing things like baths and reading and even exercise.  i finally feel like myself again. i have some rare moments of anxiety but nothing at all like i had before seeking help. this is a good medication."