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Doctor insights on: Zofran Dosages

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I took 4mg of Zofran (ondansetron) around 2 am. Then took 6 mg around 7 am for naseau. Is this dose OK for adult 120lb?

I took 4mg of Zofran (ondansetron) around 2 am. Then took 6 mg around 7 am for naseau. Is this dose OK for adult 120lb?

Yes, it is OK: The recommended adult oral dosage of Zofran (ondansetron) is 24 mg given as three 8-mg tablets or 4-8 mg 3X/day as needed. Not to exceed 24mg in 24 hours. It is always prudent to discuss side effects and risks with your physician. Good luck. ...Read more

Dr. James Henning
402 doctors shared insights

Ondansetron (Definition)

Ondansetron is a nausea and vomiting agent which is a ...Read more


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Taking Zofran (ondansetron) odt for nausea. Doc said i could double 4mg tablets. I took 2 tablets 4 hours ago is it okay take another dose?

Maybe: In general, zofran (ondansetron) is made for short-term usage, and if it has not gotten your symptoms under control yet, adding more is unlikely to help. If, however, it was helping and has worn off, taking one additional tablet would be okay. Again, in the short-term. Keep in mind zofran (ondansetron) is an opiate relative, which means if you have a drug or alcohol history or a family history, it is not your best choice. ...Read more

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Is Zofran (ondansetron) 4mg safe if you have a healthy heart? How long after stopping the drug (i took one dose) does the risk for cardiac issues cease?

Ondansetron: Zofran (ondansetron) in doses greater than 16 mg at a time has been implicated in prolonging the qt interval. This effect would last for a few hours while the drug was in the system. A single 4 mg dose does not carry this risk. ...Read more

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I have a cough, bad nausea and fever. My doc gave me Zofran (ondansetron) 4mg 3x day. 4 isn't enough anymore can I double the dose or is that not safe?

I have a cough, bad nausea and fever. My doc gave me Zofran (ondansetron) 4mg 3x day. 4 isn't enough anymore can I double the dose or is that not safe?

Need doctor's advice: Never alter the total dose, duration, frequency of daily use, nor start/stop a prescription drug without your doctor's advice. There is room to adjust zofran (ondansetron) here, but what are you treating? More importantly, what condition has worsened in you that warrants more zofran (ondansetron)? Ask your doctor to find the cause, not just treat your symptoms. ...Read more

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Esrd pt was just discharged from long hospital stay, receiving high dose dilaudid & Zofran (ondansetron) which were d/c'd abruptly. Now acute wd sx. Help w/ mgmt?

See Previous Answer: You basically have three options: resume opiates and taper gradually to minimize withdrawal. Use subutex (buprenorphine) as a replacement opiate which has less withdrawal issues. Use meds which block withdrawal symptoms like clonidine. The problem with the last option is that it can drastidcally lower your BP which might make your dialysis management difficult. ...Read more

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8 weeks pregnant with third baby with extreme vomiting. Have zofran (ondansetron) 8 mg. what's the correct dose to take for pregnancy? exhausted all other options

8 weeks pregnant with third baby with extreme vomiting. Have zofran (ondansetron) 8 mg. what's the correct dose to take for pregnancy? exhausted all other options

Talk to your OB: Zofran (ondansetron) is dosed one every 12-24 hours but if your vomiting is that severe talk to your OB. Adequate nutrition is absolutely essential for a healthy baby and mom and at times hyperalimentation can be necessary. You also want to be sure that there isn't something else going on causing the nausea. Hope this helps and you are feeling better soon. ...Read more

Dr. John Landi
309 doctors shared insights

Zofran (Definition)

Zofran is a nausea and vomiting agent which is a ...Read more