The average price of drinks in nightclubs in Istanbul can vary widely depending on the venue and the type of drink. However, generally, you can expect to pay higher prices for drinks in nightclubs compared to bars or other establishments. In Istanbul, the average price for a beer in a nightclub can range from 100-150 Turkish Lira, while a cocktail can cost around 200-500 Turkish Lira. Of course, these prices can vary significantly based on the location, popularity of the venue, and the type of drink ordered. It's important to note that some nightclubs may also have minimum spending requirements or bottle service options, which can significantly increase the overall cost.