Headaches - Acetaminophen
Acetaminophen and aspirin have some properties that are alike and others that differ. Acetaminophen, also known as paracetamol, is an analgesic. Aspirin is also an analgesic, pain reliever. Both aspirin and acetaminophen have been used in the treatment of headaches since the 19th century.
Aspirin works by interfering with the action of a type of natural hormone called prostaglandins. These biochemicals come into play during inflammation, such as occurs during injury. Hit your thumb with a hammer and the swelling starts. Prostaglandins stimulate signals through nerve cells that we perceive as pain, and stimulate the swelling. That swelling is the body's reaction to increase blood supply and surround damaged tissue.
But acetaminophen is not an NSAID (Non-Steroidal Anti-Inflammatory Drug) like aspirin or ibuprofen. Consequently, it does not reduce pain from conditions caused by inflammation, as aspirin will. Yet, unlike ibuprofen, it's safe to use during all stages of pregnancy. Ibuprofen is particularly to be avoided in the third trimester.
Acetaminophen has another advantage over aspirin in some cases. In certain diseases, such as Reye's syndrome, acetaminophen can be taken safely. Aspirin is unsafe for those afflicted. It also has many fewer side effects for a wide variety of people.
At proper dosages, acetaminophen doesn't irritate the stomach lining as aspirin can. It also does not carry the same risk of kidney damage as its pharmacological cousin. Aspirin thins the blood, which accounts in part for its use as a heart attack preventative. But clotting can be useful if one is subject to nose bleeds or gets cut. Acetaminophen does not interfere with clotting.
The reasons lie in the similarities and differences between the two closely related compounds. Aspirin interferes with prostaglandin production by inhibiting an enzyme called COX. Though acetaminophens don't reduce those inflammation hormones, it does, paradoxically, inhibit the COX enzymes used to produce them.
On the other hand, there is some risk associated with acetaminophen when taken at improperly high dosages. Daily use can lead to so-called rebound headaches, and at high enough dosages can cause liver damage and even death. Such risks are low, but are increased by, for example, taking it in conjunction with alcohol.
Some more common side effects to watch out for include bloody or black, tarry stools, skin rash and sore throat (not present before beginning treatment). In rare cases, lip ulcers or white spots in the mouth have been reported.
Acetaminophen is a drug and you should always follow the directions and safety instructions. It is usually thought to be safe to take with other over-the-counter pain control medicines. Excedrin for example combines acetaminophen, caffeine, and aspirin. You must always remember to follow label instructions and consult a doctor if you experience a lingering fever or headache.
Often, migraines occur more frequently when there is a combination of these triggers.
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Fortunately, they are rarely severe enough to cause vomiting or excessive sensitivity to light and sound, as migraines can. The compound in ibuprofen can be passed through the blood stream into the fetus. One piece of evidence is the much higher incidence among women than men, roughly 17% as opposed to 6% according to one study. They also last longer, which is important for those many who have symptoms that can last for days. In more severe cases, the treatment options become muddier.
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