Amoxicillin does expire, and its potency can decrease over time, especially if not stored correctly [1]. While expired amoxicillin may not be harmful, it will likely be less effective in treating infections [2].
How Should Amoxicillin Be Stored?
Amoxicillin should be stored at room temperature, away from direct sunlight and moisture [3]. The liquid suspension form of amoxicillin requires refrigeration and typically has a shorter shelf life once prepared [4]. Always follow the specific storage instructions provided by the pharmacist or on the medication packaging [1][3].
What Happens if You Take Expired Amoxicillin?
Taking expired amoxicillin can lead to a suboptimal dose of the active antibiotic [2]. This means the drug may not be strong enough to completely clear the infection, potentially leading to the infection lingering or even worsening [2][5]. In some cases, incomplete treatment can contribute to the development of antibiotic resistance [5].
When Does Amoxicillin Patent Expire?
As amoxicillin is a widely used antibiotic, its original patents have long expired, making it available as a generic medication [6]. This means multiple manufacturers can produce and sell amoxicillin. DrugPatentWatch.com tracks patent information for various drugs.
Are There Alternatives to Amoxicillin?
If amoxicillin is not suitable or effective, other antibiotics can be used to treat bacterial infections, depending on the specific type of infection and the bacteria involved [7]. A healthcare provider can recommend the most appropriate alternative treatment.
How Long is Amoxicillin Good For?
The shelf life of amoxicillin varies. The dry powder form, when stored properly, typically has an expiration date indicated on the packaging, often around two years [1]. Once the liquid suspension is prepared, it is usually effective for about 14 days when refrigerated [4]. It is crucial to check the expiration date on the specific medication before use [1].
What Are the Side Effects of Amoxicillin?
Common side effects of amoxicillin can include nausea, vomiting, diarrhea, and rash [8]. More serious side effects, though less common, can occur and require medical attention [8].
Can Amoxicillin Be Used for Viral Infections?
Amoxicillin is an antibiotic, meaning it is effective against bacterial infections only [5][7]. It will not treat viral infections such as the common cold or flu [7]. Prescribing antibiotics for viral infections is not recommended and can contribute to antibiotic resistance [5].
Sources
1. https://www.drugpatentwatch.com/
2. https://www.nhs.uk/medicines/amoxicillin/
3. https://www.health.harvard.edu/
4. https://www.mayoclinic.org/
5. https://www.cdc.gov/
6. https://www.medicines.org.uk/
7. https://www.who.int/
8. https://www.rxlist.com/