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Drugs which are past their shelf life can decompose [1] and either be ineffective [2] or even harmful. [2] Standard advice from drug manufacturers and some health organizations is to dispose of drugs after the expiration date printed on the packaging. However, the published expiration date is not an absolute indication that a drug has spoiled.
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But research conducted by the FDA demonstrates that 90 percent of more than 100 drugs—both prescription and over-the-counter—are perfectly good to use even 15 years after the expiration date.
Valaciclovir, also spelled valacyclovir, is an antiviral medication used to treat outbreaks of herpes simplex or herpes zoster (shingles). [2] It is also used to prevent cytomegalovirus following a kidney transplant in high risk cases. [ 2 ]
The expiration date of pharmaceuticals specifies the date the manufacturer guarantees the full potency and safety of a drug. Most medications continue to be effective and safe for a time after the expiration date. A rare exception is a case of renal tubular acidosis purportedly caused by expired tetracycline. [9]
If you are unsure of your medication’s expiration date, you can find it using the batch number on its outer carton and matching it to the list. For example, medication with the batch number ...
2012 (Fixed-dose combo Stribild) 2014 (single pill) 2015 ; Emtricitabine: HIV Gilead Sciences NRTI 2003 Enfuvirtide: HIV Entry inhibitor 2003 Ensitrelvir: COVID-19: Shionogi: 3C-like protease inhibitor Entecavir: HIV NRTI 2005 Etravirine (Intelence) [8] HIV NNRTI 2008 Famciclovir: Herpes Zoster: Guanosine analogue 1994 Fomivirsen: AIDS Anti ...
Valganciclovir, sold under the brand name Valcyte among others, is an antiviral medication used to treat cytomegalovirus (CMV) infection in those with HIV/AIDS or following organ transplant. [3]