Pains caused by injuries or other illnesses are often treated with Prosoma 350, a skeletal muscle relaxant. To alleviate the aching felt in muscles after trauma, strain, or sprain. Prosoma 350 is an analgesic that functions by preventing a certain neuron from sending pain signals to the brain. When combined with other forms of physical therapy, it is used to alleviate severe pain by relaxing the patient's muscles and reducing inflammation. Trithrice daily dosages often fall between the 250-350 mg range. If you have any concerns, though, you should talk to your doctor. Drowsiness and sedation are two of the negative effects of Prosoma 350. Headaches and dizziness are two other negative effects.