Unlikely: Not if you take the dose you are prescribed and it is a proper dose (celexa (citalopram) up to 40mg and Promethazine up to 100mg/day) you can get side effects such as sedation. If you are so sedated that you don't remember what you are taking, i guess you could take an extra dose which shouldn't hurt you but if you have a bad reaction, see your doctor immediately or go to the er.
Answered 2/15/2020
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3 doctors weighed in across 2 answers
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