If i drink a bottle of water after how much time i can insert catheter to empty my bladder, have a neurogenic bladder and have to go in every 5-10 mins?

Small functional : Bladder. Likely due to neurogenic cause of your bladder disfunction. Needs to be worked up by a urologist with expertise in neuro-urology. You may well be a candidate for anticholinergic medication which will functional increase your bladder capacity. Otherwise might even be a candidate for bladder enlargement surgery(augmentation cystoplasty) good luck.

See your doctor: That diagnosis requires a good relationship with your healthcare team. All details of catheterization and bladder maintenance and troubleshooting should be well-known to you.