Interaction problems symptoms and conditions

My 9 year old son has been on Singulair for about four years for asthma and allergies. It did wonders for his asthma and allergies. However, since starting the medicine, has experienced rages, anger, impulse control problems, extreme mood swings, violent and destructive behavior, repetitive behaviors, bed wetting, weight gain, bad self thoughts, ADD, paranoia, peer social interaction problems...shall I go on? He sees a psychologist once a week for counseling and a psychiatrist periodically. He was diagnosed last year with major depressive disorder and mild ADD. He was placed on an antidepressant, an antipsychotic, and an ADD med. My big-hearted sweet boy gradually faded away. When I heard the news about the FDA investigation last week, I did some investigating myself. What I found was gut-wrenching! The Singulair went in the trash. This drug has stolen four precious years of my sons life and made the entire family suffer! We have been through hell. Only four days off the medication and he is already feeling better and looking like my happy boy again! We are slowly weaning him from his psych meds. I am full of hope now for him and his future and my family's weel-being but I am FURIOUS at Merke!!!

I was prescribed Levaquin,by a dermatologist, 500MG for 10 days for a skin infection. I began to have severe muscle/tendon pain within a few days. I took it for 9 days. I stopped taking it 8 days ago, and still have severe arm pain. I feel like I've been doing more than 100 pull-ups. I find it difficult to carry a bag, as it adds to the pain. I've tried Naproxen, but it doesn't seem to help. The pain is worse earlier in the day. I talked to my primary Dr. 2 days ago. He thinks it is from the leaquin in combination with Crestor", a cholesterol lowing drug I take. I also take Femara and effexor. I'm wondering ifanyone has had drug interaction problems when taking levaquin, or if this pain is just from the one drug.I am also experiencing unusual (for me) fatigue, and wonder if this is related to Levaquin also.

I took Singulair with Allegra this morning at work (Allegra was prescribed a day or so ago), and I got so spaced out and dizzy that I had to go home and sleep it off. I called the Pharmacist and asked if she knew of any interaction problems and she concurred that the two could cause light-headedness. BEWARE of this combination! And after reading this site, I'm not taking the Singulair anymore... not worth it.