Loniten Overdose

If you believe you may have overdosed on Loniten (minoxidil oral), seek medical attention immediately. Taking too much of this drug may cause symptoms such as headaches, a fast heart rate, and dizziness. Treatment options may include administering activated charcoal, pumping the stomach, or providing supportive care to treat the symptoms that result from the overdose.

Can You Take Too Much Loniten?

Loniten® (minoxidil oral) is a prescription medication used in the treatment of severe high blood pressure. As with most medications, it is possible to take too much Loniten.
 
The specific effects of an overdose can vary, depending on a number of factors, including the Loniten dosage and whether it was taken with any other medications or substances.
 

Effects of an Overdose

It is not known what exactly to expect from an overdose with Loniten. Based on the known side effects of the medication and a few reported cases of overdose, symptoms may include:
 
  • Headaches
  • A fast heart rate (tachycardia)
  • Severe low blood pressure (hypotension)
  • Irregular heart beat (arrhythmia)
  • Dizziness or lightheadedness.
 

Treating a Loniten Overdose

If the overdose was recent, a healthcare provider may administer activated charcoal or "pump the stomach" to reduce the amount of the medication that is absorbed into the bloodstream.
 
 
Treatment will also involve supportive care, which consists of treating the symptoms that occur as a result of the overdose. Examples of supportive care for a Loniten overdose include:
 
  • Intravenous (IV) fluids
  • Close monitoring of blood pressure
  • Medications to treat low blood pressure.
 
It is important that you seek medical attention immediately if you believe that you or someone else may have overdosed on Loniten.
Written by/reviewed by: Susan Lakey, PharmD, MPH
Last reviewed by: Kristi Monson, PharmD
 
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