Amoxicillin can make you feel weird by disrupting your gut bacteria, causing digestive issues like nausea, diarrhea, and cramps, and triggering fatigue as your body fights the infection and medication effects. Some people experience mild allergic-type reactions, such as rashes or joint pain, while more serious (but rare) allergic reactions involve breathing issues or swelling, requiring immediate medical help. The "weird" feelings often stem from your body adjusting to the antibiotic killing off bad bacteria, affecting good gut bacteria, or your immune system working hard.
Common side effects of amoxicillin include gastrointestinal symptoms such as nausea, vomiting, diarrhea, and stomach upset. Some people who take amoxicillin may develop lightheadedness or dizziness.
Amoxicillin may cause diarrhea, and in some cases it can be severe. It may occur 2 months or more after you stop taking this medicine. Do not take any medicine or give medicine to your child to treat diarrhea without first checking with your doctor. Diarrhea medicines may make the diarrhea worse or make it last longer.
While fatigue is not the most common side effect of antibiotics such as amoxicillin, cephalexin or azithromycin, some people do notice extra sleepiness, sluggishness or a general sense of low energy while taking these medications.
Amoxicillin (Amoxil) is a prescription antibiotic commonly used to treat bacterial infections of the ears, skin, and more. It comes as a capsule, tablet, and oral suspension. Most kids and adults taking amoxicillin take one dose 2 or 3 times per day for 5 to 10 days at a time.
Amoxicillin is an antibiotic commonly prescribed for pregnant women who have bacterial infections. Use of amoxicillin during pregnancy and while breastfeeding is generally safe, but in some cases, rare side effects can occur.
Amoxicillin starts fighting bacteria in your body soon after you take it. However, it needs some time before it starts to make a difference. You may begin to feel better after 2 to 3 days of taking the medication. But it may take longer to feel fully back to normal.
The most common amoxicillin side effects are nausea, vomiting, and diarrhea. These usually go away after you finish taking the medication. Contact your healthcare professional (HCP) right away if you experience any serious side effects, such as severe diarrhea or symptoms of an allergic reaction.
Dizziness is listed as a side effect of amoxicillin in Lexicomp, but this does not mean the amoxicillin is causing the dizziness. You can certainly change the antibiotic and see if the dizziness dissipates. As always, a medical consult is a good idea to address medical-related concerns.
Antibiotics can have side effects such as diarrhoea and feeling sick. These side effects are usually mild and should pass once you finish your course of treatment. If you get any additional side effects, contact your GP or the doctor in charge of your care for advice.
9 Amoxicillin is generally not known to cause fatigue or drowsiness. However, it is more likely that fatigue is related to the infection being treated, rather than the antibiotic itself. While fatigue is a rare side effect of amoxicillin, it's not typically associated with this drug.
Amoxicillin: Up to 8% of people experience diarrhea, while about 1% each experience nausea or vomiting. Constipation is not listed as a side effect of amoxicillin. 5. Augmentin (amoxicillin/clavulanate): Up to 34% of people experience diarrhea, up to 3% experience nausea, and up to 8% have vomiting as a side effect.
Dosage and strength
The usual dose of amoxicillin capsules is 250mg to 500mg, taken 3 times a day. The dose may be lower for children. Amoxicillin liquid is available in 2 strengths containing either 125mg in 5ml or 250mg in 5ml.
Mechanisms supporting BL-related neurological adverse events have been previously described in several studies and reviews and reported clinical manifestations were confusion, vigilance disorders, shaking or myoclonus, a decreased level of consciousness, and epilepsy [2,10,11].
Delayed allergic reactions can happen around 7 to 12 days after taking amoxicillin capsules. The allergic reaction is usually a mild skin rash, but you may also have a high temperature, joint pain and swollen glands, particularly in the armpit. Around 1 in 10 people have an allergic reaction to amoxicillin.
Antibiotics: The good and the bad
But they are not without side effects. Among them are depression and anxiety, occasionally lasting for months. Antibiotics kill bacteria, but they are indiscriminate when it comes to targeting. Not only do they kill pathogens, but they kill beneficial gut bacteria as well.
Amoxicillin is not known to commonly cause tiredness or fatigue in most people, but some individuals do report feeling more tired than usual while taking it. This tiredness is often mild and temporary, and is more likely a result of your body fighting off infection rather than a direct effect of the antibiotic itself.
In rare cases, especially with injectable antibiotics, Anaphylactic reaction - A severe form of allergic reaction that is life-threatening can occur. Reach out to emergency if any of these symptoms develop: Feeling dizzy or fainting. Difficulty in breathing.
Absorption: Amoxicillin exhibits stability in the presence of gastric acid and is rapidly absorbed after oral administration, with average peak blood levels typically reached within 1 to 2 hours.
Central Nervous System: Reversible hyperactivity, agitation, anxiety, insomnia, confusion, convulsions, behavioral changes, and/or dizziness have been reported rarely. Renal: Crystalluria has also been reported.
Although an amoxicillin rash usually resolves in a week, it can last up to two weeks. A rash caused by amoxicillin usually shows up within the first few days of taking the medication, but it's possible to have a delayed amoxicillin rash or reaction.
Cautions with other medicines
Some side effects can be serious. If you experience any of these symptoms, stop taking amoxicillin and call your doctor immediately or get emergency medical treatment:
Amoxicillin typically stays in your system for 8 to 12 hours after your most recent dose. It's possible to continue experiencing some effects of amoxicillin after you stop taking the drug, especially during this 8-hour to 12-hour period.