allergic rhinitis
"I was prescribed Montelukast (10mg to be taken at night) to treat chronic rhinitis. I am a generally quite an anxious person and have been treated occasionally for mild anxiety related depression over the past 15 years but not for the past 2 years. I have been taking Montelukast for 9 days now - I had very vivid unpleasant dreams for 3 nights followed by a couple of nights when I slept well but awoke feeling like I had slept badly. The last 4 nights have been fine and I feel back to normal. My rhinitis has eased significantly too. I like this drug."