I found the psychological effects of Montelukast wore off after about two weeks of usage, and I was somewhat resistant to them anyway. But they are quite real. I had colleagues who absolutely could not tolerate the side effects.
I was astonished to find that my doctors were unaware of any such adverse reactions.
For those who are not affected by the side effects, this drug is a pretty good anti-allergy remedy and does reduce the number and severity of asthma incidents. And it is inexpensive. It is not suitable for everybody.
I’m the first to say that Monthly last really works great. But the first time I took it about 2 months in I started having anxiety for no apparent reason and then I couldn’t think of words. So finally I got the idea to look up the side effects of Monthly last and then I quit taking it.
This time around I’m only taking half a dose and no anxiety but the cognitive stuff started up right away. The other day I could not think of the words misdemeanor and felony. I’m only staying on it another month or so.