Yes, you can drink water after taking a Zepam 0.5 mg tablet. There are no restrictions on drinking water with this medication. It is generally recommended to swallow the tablet with a full glass of water (about 240 ml) to help it go down smoothly and support proper absorption. If you have a medical condition that requires limiting fluid intake, such as heart disease or kidney problems, follow the guidance of your treating doctor, who can advise the safest way for you to take the medication.