Fosphenytoin to phenytoin dose conversion

Common Questions and Answers about Fosphenytoin to phenytoin dose conversion

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Avatar f tn Folic acid supplementation in folate-deficient patients with epilepsy changes the pharmacokinetics of phenytoin, usually leading to lower serum phenytoin concentrations and possible seizure breakthrough..." It however says that initiation of Folic acid and phenytoin together is beneficial. Since you can't go back and start all over again, you can take a small dose. It has been observed that as los as 1mg dose can perturb phenytoin’s levels, You may take doses lower than 1mg/day.
1291453 tn?1272143404 You should tell your doctor if you experience any of these symptoms while taking phenytoin, so that your blood level of phenytoin can be measured and your dose reduced if necessary. " Also, he has had a major surgery, and will need time to recover. However, any changes need to be reported to the doctor.
Avatar f tn Yet if I need to take an antibiotic I must avoid the mycin class. Mycins effect the metabolism of Phenytoin in the liver, slowing the elimination of it significantly. If I take a mycin class antibiotic, I may overdose on the amount of Phenytoin that I have been taking daily for years, simply based on this interaction. The Supplements you take may have similar effects on other supplements or medications. Be well.
Avatar f tn I am going to ask my Dr to increase my T4 meds to 137 mcg to bring my TSH down , as I am having some symptoms of hypo : fatique, irritability, constipation etc. I know that it would be possible to add T3 to my meds, but I would rather try to fix the conversion problem if I can. Does anyone have info, or experience with this situation. Thank you.
Avatar n tn My doctor reduced me to the above dose and its going terribly. The conversion for the fent for that dose is 50 to 75Mcg. My dr said to try changing the patch every 2 instead of every 3. My insurance won’t pay for this non-standard dose. Idk what to do. I’m in constant pain, sweating crazy - i’m in a nightmare.
5268376 tn?1406179712 For instance, I take Phenytoin for seizures, look at the list of drugs that can increase Phenytoin concentrations, sometimes to serious levels: "Drugs that may increase phenytoin serum levels, include: acute alcohol intake, amiodarone, anti-epileptic agents (ethosuximide, felbamate, oxcarbazepine, methsuximide, topiramate), azoles (fluconazole, ketoconazole, itraconazole, voriconazole), capecitabine, chloramphenicol, chlordiazepoxide, cimetidine, diazepam, disulfiram, estrogens, fluorou
Avatar m tn In other words, do talk to her doctor about her dose, but check your assumptions about cause and effect before suggesting a change.
Avatar f tn Dear Jayashree, Phenytoin is used to prevent seizures.It can be continued for long term.Decision regarding continuation of phenytoin depends on MRI finding,initial indication for which it was started and seizure frequency.Consult the neurologist who has started this,he can decide wether to contiue or to stop it.
Avatar f tn I am getting ready to convert to Armor from Synthroid. Any suggestions about easy conversion without major side effects like weight gain, hair loss, tremors, or arrythmias? Don't want to go hypo, and don't want to be hyper. I have been on Synthroid due to RAI for years and have had every bad side effect their is. The Endo's always made my dose to high and went just by the numbers. That kicked me into heart arrythmias, diah, tremors for years.
Avatar m tn You could try a slightly higher dose of T4 med; you may have to get your FT4 level up higher, in order to get your FT3 to follow.
Avatar n tn The water in this municipality is horrible tasting and smells to me like pesticide. I use a water filter attached to the faucet.....neither my cats of dog drink unfiltered water. Last night...used up my last filter....AHHHHH! It's an Emergency!!! Gotta go to Store...dehydrating as I type.............. ps Have yet to read article...doesn't sound good. From a biblical standpoint...this is par for the course.....and the bottom line is "SIN".
Avatar m tn m cold, I developed very severe mood swings that go from very mad to very sad. I started to grow facial hair on my chin, and most recently developed reddish purple marks on my stomach which resemble stretch marks but change shape over time and fade then more appear.
640719 tn?1277140030 However, bear in mind that the two are not really equivalent since T3 and T4 are very different. The chart only offers a place to start, and your starting dose should take that into account along with other factors, like your typical drug tolerance and the fact that T3 sometimes takes a little getting used to. So, your overall dose will be a little on the low side, but I don't think it's an unreasonable place to start.
Avatar n tn Conversions from one opiate to another are typically done reducing the new opiate dose by 20-30% for cross tolerance. Converting from fentanyl back to oral pain meds is a difficult conversion, and may require adjustments by your doctor. Do not adjust the dosage on your own or take more than you are currently prescribed without your doctors permission and guidance.
Avatar n tn Combining fluoxetine or paroxetine with phenytoin can also lead to increased phenytoin side effects and reduce blood levels of paroxetine. You really need to discuss the potential drug interactions with your own doctor.
Avatar n tn That advice makes absolutely no sense whatsoever. There is no reason for an epileptic to avoid medications prescribed by his or her physician, either by brand name or generic form. There is no difference except for an advertising campaign.
Avatar f tn 1 when thyroid dose at 100 mcg Synthroid-only Had to go out side of my medical system to get more thyroid] Estimated average glucose 108 (85-126) [within an hour after breakfast] Hgb 1AC 5.4 (4.6-6.0) WBC 3.0 (3.5-12.5) Red blood count 4.15 (3.60-5.70) Hgb 12.9 (11.5-15.0) Hct 39.7 (34.0-46.0) MCV 96 (80-100) RDW, RBC 12.5 (12.0-16.5) Platelets 113 (140-400) Neutraphils % automated count 54 (41-81) Lymphocytes % automated 34 (13-46) Monos 10 (4-12) Eosinophils 2 (0-4) Neutraphils 1.
1646889 tn?1301481228 It is possible to have a conversion problem, that is my issue, so my MD just took me off of Synthroid and put me on Armour three weeks ago, There is a math formula using your levels and reference ranges to determine if you have a conversion problem. If you want to post Free T3 and Free T4 with the reference ranges, I can figure it out and let you know.
603838 tn?1238534975 I have been on a beta blocker (metoprolol) for about 8 years now and I also take Gabapentin to level out my moods. I have read that both of these meds can interfere with conversion of T4 to T3.
1021784 tn?1306363011 m tired of taking the 4x/day 1mg Ativan because with the 2nd dose I either at times have to take late ( 30min - 1hr) or skip the dose. One day I even skipped 2 doses in the same day ( the 2nd and 3rd dose ). I'm planning on asking the pdoc Thursday if he has time to see me about taking Xanax XR instead of the Ativan. But I don't know a good conversion or if the shift will affect my seizure threshold. Any help? Ideas? Thanks, Andy...
Avatar m tn My current Armour dose is 90mcg on day and 120mcg the next, a pattern. My newest Endo wants me to switch to 125 of Tirosint and 25 of cytomel. I am scared to switch. Shouldn't she have put me on a higher dose of Tirosent - looks like the conversion chart would equal 150 of Tirosint, or did she knock it down because she is adding 25 of cytomel? Has anyone lost weight on Tirosint and cytomel? Feel less tired.
Avatar f tn 20mcgs of dupe is not enough to cover 40mgs of methadone. Also, the partial agonist affect of dupe leaves some people feeling odd anyway, so taking too little is adding to that affect. From what I have studied, 1mg bupe is a closer dose to an equivalent.