Sulfamethoxazole and cramps

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 had a stye/ staff infection in my right eye. It was swollen and severely hurting me. Well, my doctor put me on sulfameth and a eyedrop antibiotic. I don't mind taking the eye drops, but these pills are making me feel horrible. I am on 1 pill twice daily for 10 days. I asked the doctor and the pharmacist if this stuff causes constipation and they both said no. Well, I haven't been able to use the bathroom well since I started it. My muscles twitch, my eyes are sensitive to the sunlight, I can't go to sleep easily, I've been itching up a storm, and I have headaches. I want to just stop the medication but if I do then I will never get rid of this infection in my eye. I figured I'd stop the meds in the middle of the week. I hate feeling bloated and constipated. Has anyone else had the constipation effect?

I started taken sulfameth on Wednesday for a UTI. By Thursday evening all my joints were aching and had chills. During the night I had to get up and the calves of my legs had like cramps and aches, hard to the touch. I called my doctor after the 4th pill and my medication was changed. It has been 3 days and I still have aches. Last night I had terrible sweats, my pillow so wet I could smell the wet feathers! Apparently it takes a few days to wear off. I have never had such a reaction to a drug. At first I thought it was something else undescribable.

I went to the doctor for female infection bladder kidney don't really know but the side effects was not a joke weak /tired/ sick to my stomach / chills /shaking I could not stand up I took this medicine 1 day and called my doctor she said she has never heard of this drug reacting to others.now I 'm having senvere cramps and she also gave me a pain pill I took it the same time it was hydrocodozone I didn't od I didn't know what was happening I will never take this pill again it should not be out there.

began with heartburn, excessive thirst, loss of appetite, and insomnia- by day 5, joint pain and chills, day 7 severe cramps and nausea, and by day 8, severe hives. stopping med. today!!