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Doctor insights on: Amoxicillin 400mg 5ml

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What would the dosage be for an adult of amoxicillin 400MG/5ML SUSP 100ML?

What would the dosage be for an adult of amoxicillin 400MG/5ML SUSP 100ML?

Directions on dose: Should have been written on the prescribed medicine or it's box. A dose of 5 ml to 10 ml every 8 hours would be typical. ...Read more

Amoxicillin (Definition)

Amoxicillin is in the penicillin class of antibiotics. All penicillins are distinguished by the presence of a beta-lactam ring, and are known to kill bacteria by inhibiting synthesis (production) ...Read more


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My 29lb daughter was given a dosage of 4ml twice a day of liquid amoxicillin (400mg/5ml). Does it correct? Not overdose? Thank You.

My 29lb daughter was given a dosage of 4ml twice a day of liquid amoxicillin (400mg/5ml). Does it correct? Not overdose? Thank You.

Depends: The dosing for this med is based on both patient weight and what you are treating. For some respiratory or urinary infections the dosage of 50mg/kg/d would be expected. For an otitis media, 90mg/kg could be considered proper. Your dosage is at the lower end of normal for some issues and low for others. ...Read more

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My 42lb son was given a dosage of 6mls twice a day of liquid amoxicillin (400mg/5ml) for strep. Does this seem right? Worried about overdose. Thanks.

Yes: The dose your son was given is correct. Make sure he is staying hydrated and don't forget to get him a new tooth brush in a few days (his old one is likely teeming with strep). Hope he starts feeling better really soon! ...Read more

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My 70lb son was given a dosage of 18. 5mls twice a day of liquid amoxicillin (400mg/5ml) for strep. Does this seem right? Worried about overdose. Than

Seems high: That dose is about 1400 mg per dose which translates into 90 mg/kg per day. This is on the high end of treating resistant strep pneumo for otitis media. Definitely not appropriate dose for strep or pneumonia ...Read more

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My son was prescribed amoxicillin 400mg/5ml, at 9ml twice a day. Is this a normal amount for a 38lbs 4-1/2 yr old boy? So about 720mg x2for 24hr perio

My son was prescribed amoxicillin 400mg/5ml, at 9ml twice a day. Is this a normal amount for a 38lbs 4-1/2 yr old boy? So about 720mg x2for 24hr perio

Yes: Years ago (two decades) the recommended dose would be less, but germ resistance has changed that. Now we dose based on type of problem and weight. The med is concentrated in urine, so we can get by with less for UTI, but for ears/sinuses/etc we give up to 80-90mg/kg/day which is where this dose fits. ...Read more

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My 3 year old son is 32pounds and was given amoxicillin 400mg/5ml 100ml to take 5ml twice a day for strep. Take all&finish. Isn't the dosage too much

My 3 year old son is 32pounds and was given amoxicillin 400mg/5ml 100ml to take 5ml twice a day for strep. Take all&finish. Isn't the dosage too much

No, that dose is: Fine. There is a dosing range depending on the child's weight, which is 40-80 mg/kg/day. He is 14.5 kg, so this dose is 55mg/kg/day, which is perfectly fine. ...Read more

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My son who is 2 yrs old and around 35lbs was prescribed amoxicillin 400mg/5ml 10ml twice a day does that sound accurate? Worried it might be too much?

My son who is 2 yrs old and around 35lbs was prescribed amoxicillin 400mg/5ml 10ml twice a day does that sound accurate? Worried it might be too much?

Not really: The dosing on this and most antibiotics depends on weight AND what you are treating. If it were a UTI or bronchitis where the abx gets into the germ areas easily we can use less, if ear infection we have to use more to get in. The dosing recommended for ear infections is 80-90 mg/kg/day. This would calculate to 716 mg twice a day or 1.78 tsp. Most just round up to 2 because the extra is not a problem ...Read more

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My baby is 20 lbs and doctor prescribed amoxicillin 400mg/5ml 1tsp or 5 ml twice a day. Is that correct?

My baby is 20 lbs and doctor prescribed amoxicillin 400mg/5ml 1tsp or 5 ml twice a day. Is that correct?

Yes..: That is correct for her weight. Usually sounds like a high dose but for some conditions it is necessary to use the maximum dose which is 90 mg/kg and if divided by two this would be the recommended dose. ...Read more

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My 40lbs 5yr old was given a dosage of 10 ml twice a day of liquid amoxicillin (400mg/5ml) for sinus infection Does this seem right? Thanks.

My 40lbs 5yr old was given a dosage of 10 ml twice a day of liquid amoxicillin (400mg/5ml) for sinus infection Does this seem right? Thanks.

Seems high: For a severe sinus infection I would prescribe 45 mg / kg /day divided in 2 doses. Your child is 40 lb which is 18 kg. She should have about 800 mg / day which would be 400 mg twice a day. That would only be 5 cc every 12 hours. Double check with your doctor about this. ...Read more

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My 78 lb daughter was prescribed 5ml of amoxicillin (400mg/5ml) for Strep Throat. Is this the correct dosage?

My 78 lb daughter was prescribed 5ml of amoxicillin (400mg/5ml) for Strep Throat. Is this the correct dosage?

? low dose if once: A day, if twice a day that should be fine, depends on whether it is an immediate vs the extended release form, you want to talk to your doctor / pharmacist for confirmation, best wishes ...Read more

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My 30lb son (2.5 years old) was given a dosage of 7.5ml twice a day of amoxicillin (400mg/5ml) for ear infection. Does this seem right?

My 30lb son (2.5 years old) was given a dosage of 7.5ml twice a day of amoxicillin (400mg/5ml) for ear infection. Does this seem right?

80mg/kg: American Academy of Pediatrics has been advocating an 80 mg/kg/d dose of amoxicillin for many years now. At 400mg/5cc this comes out to 5.5 cc by mouth twice a day. The dose is a little high, even by our standard of rounding. A teaspoon and a half is 7.5 ccc. Your provider seems to have rounded this up, perhaps due to this age notoriously spitting up medicine. Ask her. ...Read more

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9yr old 78lb. Male on amoxicillin 400mg/5ml (10ml bid) for 3 1/2 days so far for infection in mouth. Now has strep. Should this antibiotic cure it?

9yr old 78lb. Male on amoxicillin 400mg/5ml (10ml bid) for 3 1/2 days so far for infection in mouth. Now has strep. Should this antibiotic cure it?

Normally yes: IF on the antibiotic when he acguired Strep I would suspectantibithe infection is resistant to the antibiotic and a new antibiotic should be given. I hope he feels better soon. ...Read more

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My 36lb. 3 1/2 year old son was prescribed amoxicillin 400mg/5ml at a dosage of 8 mls. Twice a day for strep throat. I am concerned that the dosage is?

My 36lb. 3 1/2 year old son was prescribed amoxicillin 400mg/5ml at a dosage of 8 mls. Twice a day for strep throat. I am concerned that the dosage is?

Dosage is fine: More than that can be given in other acute infections, although for a strep throat 5-6 ml /dose would suffice given your son's weight, but the extra 2-3 ml wouldn't be harmful, probably your son's doctor suspected an upper respiratory infection as well such as acute sinusitis. You may want to verify it with your doctor if you're concerned, otherwise continue till the follow up visit, good luck ...Read more

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My 40lbs 5yr old was given a dosage of 12.5 ml twice a day of liquid amoxicillin (400mg/5ml) for ear infection. Is this correct?

Max dose: That is the maximum recommended dose for your child's weight, age and reason for using the medication. If you have any further concerns, please be sure to discuss with treating provider. Hope your child is better soon. Dr R ...Read more

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My 11 yr old son weighs 139 was given amoxicillin (400MG/5ML SUSP 75ML 6.25 ml) by mouth every 12 hours X 10 days. Is this right for an ear infection?

My 11 yr old son weighs 139 was given amoxicillin (400MG/5ML SUSP 75ML 6.25 ml) by mouth every 12 hours X 10 days. Is this right for an ear infection?

Maybe: There is controversy about treatment of middle ear infections with some experts advocating no antibiotic at all. Having said that, at 139 lbs your son should be given an adult dose (875 vs 400mg) if treatment for the infection is intended. However if he has done well with the current dose, then completion of the antibiotic course would be fine. ...Read more

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My 30 lb daughter was given amoxicillin suspension 400mg/5ml for strep throat. Directions on bottle read 7.5ml twice daily. Does this dose seem high?

My 30 lb daughter was given amoxicillin suspension 400mg/5ml for strep throat. Directions on bottle read 7.5ml twice daily. Does this dose seem high?

Depends: I would usually only use 5 ml twice a day unless I was worried that the sinuses or ears were in the process of becoming infected. ...Read more

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My 4 year old son weighs 39lbs and was dx with an ear infection. Amoxicillin dose is 400mg/5ml 9ml twice daily.... Does that dose seem high?

My 4 year old son weighs 39lbs and was dx with an ear infection. Amoxicillin dose is 400mg/5ml 9ml twice daily.... Does that dose seem high?

Amoxil (amoxicillin) dose range: The usual dose of Amoxil (amoxicillin) for active bacterial infection in children is generally dosed at 45-90 mg/kg in two divided doses. Your child's dose is just below the highest recommended amount. ...Read more

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Dr. Philip Miller
1,129 Doctors shared insights

Amoxil (Definition)

Amoxil is a third generation penicillin which is a kind of penincillin type drug (anti-bacterial ...Read more