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Will it harm you if you take amoxicillin after its expiration date?
Wiki User
∙ 16y ago
It could have a nasty rebound effect. First of all, why do you have any amoxicillin? If it is left over from a previous prescription, it would indicate that you failed to complete the course of the antibiotic the first time, not a good idea. Second, the effectiveness of the amoxicillin may be compromised. It may 'sort of' work until you run out, and then allow the infection to return stronger and more capable of fighting the antibiotic.
It won't do any harm in itself, but it could be weak or ineffective depending on how far past the date it is. If you take a full round of it and it is weakened, the bacteria you are trying to fight may become resistant. It is usually better just to go to the doctor and get a fresh round.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoIt is not a good idea to take the drug after it expired in 2008. When it expired, it means a part of the drug has degraded into inactive compounds (however in the case of some drugs, it can degrade into dangerous compounds).
Amoxicllin that has expired has lost 10% of the compound on the date it was expired. That number will go up depending on how it was stored. If there was moisture (bathroom or kitchen medicine cabinets) or sunlight (leaving in near windows) the drug will break down faster.
This results in a ineffective amoxicillin antibiotic that may not work properly - leading to bacterial resistance developing. Self treatment with antibiotics is also not recommended due to the same reason mentioned above.
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