With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Athena is not a goddess.
text_B: Pyridostigmine is medication used to treat myasthenia gravis .. myasthenia gravis. myasthenia gravis. It is also used together with atropine to end the effects of neuromuscular blocking medication of the non-depolarizing type .. atropine. atropine. neuromuscular blocking medication. neuromuscular blocking medication. non-depolarizing. non-depolarizing. It is typically given by mouth but can also be used by injection .. The effects generally begin within 45 minutes and last up to 6 hours .. Common side effects include nausea , diarrhea , frequent urination , and abdominal pain .. More severe side effects include low blood pressure , weakness , and allergic reactions .. low blood pressure. low blood pressure. allergic reactions. allergic reactions. It is unclear if use in pregnancy is safe for the baby .. pregnancy. pregnancy. Pyridostigmine is an acetylcholinesterase inhibitor in the cholinergic family of medications .. acetylcholinesterase inhibitor. acetylcholinesterase inhibitor. cholinergic. cholinergic. acetylcholinesterase. acetylcholinesterase. It works by blocking the action of acetylcholinesterase and therefore increases the levels of acetylcholine .. acetylcholinesterase. acetylcholinesterase. acetylcholine. acetylcholine. Pyridostigmine was patented in 1945 and came into medical use in 1955 .. It is on the World Health Organization 's List of Essential Medicines , the most effective and safe medicines needed in a health system .. health system. health system. Pyridostigmine is available as a generic medication .. generic medication. generic medication. The wholesale cost in the developing world is about 7.17 to 65.93 USD a month .. developing world. developing world. In the United States it costs about 25 to 50 USD per month .
not_related.