Can I Take Hifenac Tablet For Toothache?

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About a month back, I had a pre-molar tooth fill-in. However, a food particle stuck in between that tooth and the one by it and, upon extracting the food particle, I find that the second one is providing a lot of pain. At the time of filling in (before that that tooth was giving pain), the dentist told me to take Hifenac tac if there was pain. Can I use that tab now?