How Long Does Zofran-8mg Remain In The Body?

Posted on Mon, 11 May 2015

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Mon, 11 May 2015 Answered on

Mon, 1 Jun 2015 Last reviewed on

Question : How long does 8mg Zofran stay in system? I only took one , but it is affecting my anxiety.

Answered by Dr. Vivek Chail (44 minutes later)

Brief Answer:
More than 97 percent is out of the system after 18 hours

Detailed Answer:
Hi XXXX,
Thanks for writing in to us.

I have read through your query in detail.
Please find my observations below.

1. Zofran contains ondansetron which is given to control vomiting tendency.

2. It should be taken carefully if you have any liver problem.

3. In a person of your age and gender the half elimination time of Zofran 8 mg is 3.5 hours. Therefore in about 18 hours, more than 97 percent will be out of your system.

Hope this answers your question. Please feel free to correct any oversight in my interpretation of your problems and discuss them in detail as per your requirements.

Hope your query is answered.
Do write back if you have any doubts.

Regards,
Dr.Vivek

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Vivek Chail (4 minutes later)

Would it be ok to quit taking it if i only took one pill? I did not fill my prescription.

Answered by Dr. Vivek Chail (10 minutes later)

Brief Answer:
Taking one pill usually does not provide any treatment benefit

Detailed Answer:
Hi XXXX,
Thanks for writing in to us.

1. Ondansetron contains substances that can affect your anxiety. If you have been given this medicine by your psychiatrist then please discuss your symptoms in detail.

2. Medicines like ondansetron help in treatment of anxiety. Taking one pill in not enough and it should be taken for a longer duration to get treatment benefit.

3. However if you are not feeling comfortable after taking a single pill then please consult your doctor and then proceed to fill your prescription if required.

Hope your query is answered.
Do write back if you have any doubts.

Regards,
Dr.Vivek

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Vivek Chail (6 minutes later)

Oh . I know for certain i don't want continue taking them. I never started on my prescription. I only wanted to know is it safe for me , health wise, to do this

Answered by Dr. Vivek Chail (9 minutes later)

Brief Answer:
It is safe and will be completely out of your system by tomorrow

Detailed Answer:
Hi XXXX,
Thanks for writing back with an update.

1. Taking a single 8 mg ondansetron will have no adverse effect on your system.

2. By tomorrow it will be completely out of your system.

3. It is completely safe health wise if you dont want to take any more medicine after taking a single pill

Hope your query is answered.
Do write back if you have any doubts.

Regards,
Dr.Vivek

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar