gas drops for 1 month old

I think my son has gas he won't eat he's cranky and wen he try's to poop he screams or even if he's just farting can I give him gas drops I've tried burping him but after trying for two hours I give up he also drinks his milk from the bottle really fast and will choke himself form eating to fast I don't have gripe water I'm planning to get it tommorow cuz the closet store is 30 mins away and I don't want to wake him up