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Will taking benadryl affect a drug test?

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How does Benadryl affect a drug test? Drug testing does not look for Benadryl. The Benadryl can cause a false positive, but when the confirmatory test is done, it will be shown that there is no true positive present, assuming that there are no other drugs in your system. So, once the screening and confirmatory tests are done, the Benadryl will not come up.

What are the long-term effects of using diphenhydramine?

Common long-term side effects of prolonged diphenhydramine use include:

  • Dependence. For some, diphenhydramine can cause addictive effects when engaging in long-term use of the substance.
  • Circulation. Those who use diphenhydramine for extended periods can experience low blood pressure, which can result in heart palpitations.
  • Mental challenges.
  • Physical problems.

Can Benadryl cause a false positive for meth? Benadryl, which is commonly taken for allergic reactions, could lead to a false positive for Benzodiazepines or PCP. Claritin, which is commonly taken by millions for seasonal allergies contains the active ingredient Loratadine, which could lead to false positives for drugs such as methamphetamine or Ecstasy.

What can cause false positive for barbiturates? The most common medicine to cause a false positive test for barbiturates are anti-inflammatory medicines, such as ibuprofen or naproxen. It also has been reported with Dilantin.