What can i take for lower back pain?

Depends: Many people can use Acetaminophen (tylenol (acetaminophen) and others) unless they have liver problems. Anti-inflammatory meds like Naproxen (aleve), Ibuprofen (many brands) and prescription brands, but can upset the stomach and may not be appropriate for folks with some medical conditions. All meds (over the counter and prescription) can have side effects. Read the package, talk to your doctor or pharmacist.

See doctor: There are many options including muscle relaxers, anti-inglamatory medication and opioids. You need to be seen by a pain specialist.

Depends on cause: There are many different causes of low back pain but in most cases the best answer is to not take something but to do something. I advise seeing a Dr. to evaluate but in most cases physical therapy helps; your Dr. can prescribe that. Seeing a good chiropractor or osteopath often helps, as can acupuncture. If you're deficient in magnesium (common, esp. if spasms) taking magnesium taurate can help.

Management depends..: 46 y/o asks, What can I take for low back pain? Low Back Pain is fairly common as people get older. There are many causes & management depends on cause. Posture sitting/lying down usually the commonest, as pulling/pushing/ lifting heavy weights. Degenerative Joint disorders, Nerve Entrapment,... Best avoid sitting too long w/o stretching. Warm compresses, Mild OTC analgesics, Then see PCP for eval

Varies: Short term episodes of back pain can potentially have a favorable natural history and things like rest, time, medications such as NSAIDs, moist heat can help. If pain not relieved or develop pain or numbness down the leg or any associated bowel or bladder problems, consider being seen.