Carisoprodol, Generic Soma is a controlled drugs and you cannnot buy it online.

Carisoprodol is a centrally-acting skeletal muscle relaxant. Carisoprodol is a colorless, crystalline powder, having a mild characteristic odor and a bitter taste. It is slightly soluble in water and freely soluble in alcohol, chloroform and acetone. Its solubility is practically independent of pH. It is marketed in the United States under the brand name Soma, and in the United Kingdom and other countries under the brand names Sanoma and Carisoma. Carisoprodol is available by itself or mixed with aspirin and in one preparation (Soma Compound With Codeine) along with codeine and caffeine as well. 

Although reports from Norway have shown that carisoprodol has abuse potential as a prodrug of meprobamate and/or potentiator of hydrocodone, dihydrocodeine, codeine and similar drugs, it continues to be prescribed in North America, alongside orphenadrine and cyclobenzaprine. In Europe, doctors favor cyclobenzaprine. In the United Kingdom, benzodiazepines are preferred instead. All of the above plus chlorzoxazone are used in Canada. 

As of November 2007, Carisoprodol (Somadril, Somadril comp.) has been taken off the market in Sweden due to problems with dependence and side effects. The agency overseeing pharmaceuticals has considered other drugs used with the same indications as carisoprodol to have the same or better effects without the risks of the drug. 

In the EU, the European Medicines Agency has issued a release recommending that member states suspend marketing authorization for this product in the treatment of acute (not chronic) back pain. 

As of February 2010 carisoprodol is considered to be a schedule CIV by the states of Alabama, Arizona, Arkansas, Florida, Georgia, Hawaii, Indiana, Kentucky, Louisiana, Massachusetts, Minnesota, Mississippi, New Mexico, Nevada, Oklahoma, Oregon and Texas (scheduled using the states new controlled substance program which requires physicians to obtain, and include, a state “DPS” number as well as a DEA number on all Scheduled drugs) and Washington State. It is a schedule CIII in West Virginia. The rest of the United States, excluding the above named states, falls under the DEA scheduling for the drug, which considers carisoprodol a non-scheduled chemical, meaning that carisoprodol is considered a general prescription medication by the federal government of the United States, with oversight provided solely by the U.S. Food and Drug Administration (FDA). 

Carisoprodol is a muscle relaxer that works by blocking pain sensations between the nerves and the brain. Carisoprodol is used together with rest and physical therapy to treat injuries and other painful musculoskeletal conditions. Carisoprodol may also be used for other purposes not listed in this medication guide. 

Carisoprodol side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop using carisoprodol and call your doctor at once if you have any of these serious side effects: 

• paralysis (loss of feeling); 
• extreme weakness or lack of coordination; 
• feeling light-headed, fainting; 
• fast heartbeat; 
• seizure (convulsions); 
• vision loss; or 
• agitation, confusion. 

Less serious side effects may include: 

• drowsiness, dizziness, tremor; 
• headache; 
• depression, feeling irritable; 
• blurred vision; 
• sleep problems (insomnia); or 
• nausea, vomiting, hiccups, upset stomach. 

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088. 

According to usahealthstore.com: 

Carisoprodol 

SOMA (carisoprodol) Tablets are available as 250 mg and 350 mg round, white tablets. Carisoprodol is a white, crystalline powder, having a mild, characteristic odor and a bitter taste. It is slightly soluble in water; freely soluble in alcohol, in chloroform, and in acetone; and its solubility is practically independent of pH. Carisoprodol is present as a racemic mixture. Chemically, carisoprodol is N-isopropyl-2-methyl-2-propyl-1,3-propanediol dicarbamate and the molecular formula is C12H24N2O4 , with a molecular weight of 260.33. The structural formula is:
  

carisoprodol  

Other ingredients in the SOMA drug product include alginic acid, magnesium stearate, potassium sorbate, starch, and tribasic calcium phosphate.  

This medication is used to treat pain and discomfort from muscle injuries such as strains, sprains, and spasms. It is usually used along with rest, physical therapy, and other treatments (e.g., anti-inflammatory medication).  

Carisoprodol is called a centrally acting muscle relaxant. It works on the nerves to relieve muscle pain. It may also relieve pain by calming your nervous system.