each medication will also have a daily limit — how many days in a row someone can take this medication before needing to speak to a health-care professional.
“acetaminophen blocks the transmission of pain signals to the brain and it usually lasts for four to six hours,” says dr. nardine nakhla, pharmacist and a spokesperson for advil plus acetaminophen. “the nsaids, which are non-steroidal anti-inflammatories — that’s kind of the umbrella term ibuprofen falls under — works differently. it reduces the production of prostaglandins, which are responsible for pain and inflammation … that usually lasts six to eight hours.
“so you’re combining two mechanisms of action with two different ingredients that have differing length … you get kind of the best of both worlds.”
with guidelines respected, some studies suggest that combining these medications may actually be safer and more effective than other prescription medications.
a 2011 study published in
dermatologic surgery compared the pain reported by patients after they had undergone surgery to treat the skin cancer on their head and neck. after surgery, patients either received 1,000 mg of acetaminophen, 1,000 mg acetaminophen plus 400 mg ibuprofen, or 325 mg acetaminophen plus 30 mg codeine to help with the pain. not only did patients on the acetaminophen and ibuprofen regime report the lowest pain out of all the groups, they also reported significantly less complications than patients on the acetaminophen plus codeine prescription.
what about products with both acetaminophen and ibuprofen?
for some, keeping track of how much of one painkiller was taken and when might be a tall order — especially when you’re in pain — which is where medications that are already combined can be handy, says nakhla.
a 2020 study published in
the clinical journal of pain found that a fixed-dose combination of acetaminophen and ibuprofen is tolerated and effective at pain relief. researchers prescribed 568 patients who had just undergone molar extractions a single dose of either a fixed-dose medication (250mg ibuprofen and 500mg acetaminophen), 250mg ibuprofen, 650 mg acetaminophen, or a placebo.