Ultracet (tramadol and acetaminophen) may cause a range of side effects, both common and serious[1][2][4][5].
- Common side effects:
- Constipation
- Tiredness or sleepiness
- Increased sweating
- Nausea or vomiting
- Headache
- Dizziness or lightheadedness
- Loss of appetite
- Stomach pain
- Diarrhea
- Dry mouth
- Serious side effects:
- Seizures (convulsions)
- Serotonin syndrome (symptoms include confusion, fast heart rate, fever, sweating, muscle stiffness or spasms)
- Severe allergic reactions (rash, itching, swelling of face/tongue/throat, trouble breathing)
- Serious skin reactions (Stevens-Johnson Syndrome, toxic epidermal necrolysis)
- Liver damage, especially with acetaminophen overdose
- Difficulty breathing, respiratory depression
- Low blood pressure (sudden dizziness or fainting upon standing)
- Dependency risk: Ultracet can cause psychological or physical dependence, and misuse can be dangerous or even life-threatening[1][3].
- Withdrawal symptoms: Abrupt discontinuation may result in withdrawal symptoms such as anxiety, sweating, insomnia, pain, and more[1].
If you experience any serious side effects—especially allergic reactions, seizures, symptoms of serotonin syndrome, or signs of liver problems (such as yellowing of the skin or eyes)—seek immediate medical attention.
References
- [1] Tramadol and Acetaminophen: Pain Uses, Side Effects – MedicineNet
- [2] Ultracet – RxList
- [3] Ultracet Addiction: Symptoms, Causes, Effects, Risks, & More – Grove Treatment
- [4] Tramadol/Acetaminophen – Uses, Side Effects, and More – WebMD
- [5] Ultracet (tramadol / acetaminophen): Uses, Side Effects, … – GoodRx