Sulfamethoxazole and medicine

My boyfriend starting taking this 10 days ago for Bronchitis and Tonsillitis. He was prescribed two a day for 10 days.
Before he started taking the medicine he had already been vomiting for a day before being prescribed to it. He continued vomiting for the first few days after and I assumed it was not from the medicine cuz he had already been vomiting before. A few days into the meds he was not getting better and only getting worse and got a fever. I took him to the ER and the doc said to keep taking the medicine and he would give him anti nausea meds. Even after taking the anti nausea/vomiting meds.. he continued vomiting. The vomiting eventually stops after a few days and then from there on out he still was not getting better. He complained about difficulty breathing and he can hardly eat anything and is coughing constantly. He said his throat feels like its an 1/2 inch wide and he chokes when he trys to eat something that is solid. He has been having severe neck cramps, headaches and upset stomach.
Finally on his very last day taking sulfameth he came to my house and i noticed his skin looked red. 20 minutes taker he had rashes and hives all over his body.
I don't know how often this medicine is prescribed or maybe people only write reviews when they have a bad reaction to it but from what it seems I would stay away from this medicine unless you know for sure you are not allergic to it.

I was prescribed sulfamethoxazole a couple days ago..i have only taken a few doses and the side effects it gave me i am still feeling and i haven't taken the medicine for about a day and a half now...I got really bad anxiety on it. I woke up in the middle of the night with horrible anxiety, it was making me feel like i was having trouble breathing. I stopped taking it and the anxiety is still there but it has gone away some what. I will never take this medication again!

I was prescribed a sulfameth drug for a severe UTI which entailed terrible abdominal pain & blood in urine. I took it for 2 days and started feeling better. The third day, I was hit with a severe allergic reaction, which after reading some of the side effects, I realize now that i should have gone to the er or called 911. It started with a terrible headache, then vomiting. That night my fever shot up to 104 degrees!!! But, I was freezing. I was shaking uncontrollably, confused, joints aching, you name it. I thought I may have had a migrane and ended up falling asleep and never took any of the medicine on day three. On day four, I woke up feeling MUCH better, and noticed red blotches all over my hands. The second I saw this, I knew it was an allergic reaction. I went and showed the pharmacist and told him about what had happened, and he said, yes, it seemed that way to him too. He said to call my doctor and let them know I had a reaction. When I did that, all they said was they would put it in my chart. I was not even offered an alternative to it considering I still probly had a UTI. I think they did this because now that I have researched it quite a bit, I have learned that people who are allergic to penicillin are more likely to experience a reaction to sulfa drugs. And, yes...I am, and have always been extremely allergic to penicillin. I believe this was overlooked when I was prescribed with the sulfameth.

I have been taking Sulfameth/Trimeth for a bladder infection, one pill 2x a day. I started taking it on Thursday and felt pretty good for Thursday and Friday. Saturday I started having major headaches, feeling itchy all over, feeling a little bummed out, and felt a bit short of breath. I woke up today (Sunday) and had HORRIBLE pains in my left arm and my heart felt like it was beating much faster than normal. I took my pill and had something to eat, and took some Tylenol for the headache and I started to feel a bit better.

Once the Tylenol started to wear off, the pain in my arm was back, along with my left leg. It sort of felt like I had exercised way too much and that it was just stiff and sore. I've lost my appetite and am extremely tired but feel unable to sleep. Also today I feel depressed and angry and the littlest thing will set me off. I have 2 days left of this pill, I can't wait to be off it, and I will never take it again. I am contacting my doctor tomorrow morning to see if I should continue taking this as long as it was prescribed, or if I should just stop right now.

Why do doctors prescribe this when there are things that work much better with less side effects!?

I was prescribed sulfameth/trimethoprim 800/160 TABS for a kidney infection, on wednesday, i took it approximately 8 pm that same night, next day about 9 am i was breaking up i had a rash all over the inner part of my arms, on my thigh down to my feet. next thing i know i am itching all over. went to bed that night i had chills all night long. I had never had an allergic reaction to any medication until now.