Long-term treatment with Protonix may make it harder for your body to absorb vitamin B-12, resulting in a deficiency of this vitamin. In long-term rodent studies, pantoprazole was carcinogenic and caused rare types of gastrointestinal tumors. The relevance of these findings to tumor development in humans is unknown.ur Protonix Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
(In general terms, tax records should be kept for a minimum of three to seven years.) The usual time period for the IRS to assess additional tax after a return is filed is three years.axpayers must keep records supporting items shown on their federal tax returns as long as needed for administration of tax laws. That means records should be kept until the time period expires to amend a return to claim a refund or tax credit, or when the IRS can assess additional tax.
How long to keep your records. You must keep your records for at least 5 years after the 31 January submission deadline of the relevant tax year. HM Revenue and Customs (HMRC) may check your records to make sure youâre paying the right amount of tax. Example. If you sent your 2013 to 2014 tax return online by 31 January 2015, you must keep your records until at least the end of January 2020. If you send your tax return more than 4 years after the deadline, youâll need to keep your records for 15 months after you send your tax return.