I’ve taken 10mg of Cetirizine Hydrochloride, sold as Extra Strength Reactine, for the past 10 days or so. https://www.reactine.ca/products/Extra-Strength-Product
I take it with food in the morning. I think this matters for me.
So far I haven’t had a single bad day. I’ll update if it continues to work.
Not sure if it is advisable to take such a high dosage. I will consult my doctor in Jan.