Hello and thank you for your question.
Unfortunately, once the Ambien is in, there is not much you can do stop its effect. If you just took it, you might want to induce vomiting to try to get rid of the medication before it gets digested, but if its been more then 20-30 minutes, that wouldn't help.
You can drink products with caffeine to try and boost your energy but overall, there is not much you can do.
Please feel free to let me know if you have any other questions.
Julia
Physician Assistant
7 years experience working in Primary Care as well as Gastroenterology, Sleep Medicine & Weight Loss
I cannot recommend that because I dont know your medical history.
If you have high blood pressure, it is definitely not a good idea.
Most likely the effect of Ambien will be stronger then any shots you will take. If you have no medical problems, you might want to get an energy drink in case you start falling asleep.