Can I take Histafree M tablets instead of Allegra M to treat my allergies to dust, smoke, and strong smells?
Yes, you can safely substitute Allegra M with Histafree M. Both medications contain the exact same active generic ingredients, fexofenadine and montelukast, which work beautifully together to manage allergy symptoms triggered by dust, smoke, and strong smells. Since they are therapeutically equivalent, switching between them should provide you with the same effective relief. Just to be fully safe, please verify with your pharmacist that the strength of the new tablet matches your current prescription. I hope you find quick relief and feel much better very soon!