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Doctor insights on: Famciclovir Allergy In Children

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What is the definition or description of: Famvir (famciclovir) allergy?

What is the definition or description of: Famvir (famciclovir) allergy?

Famvir Allergy: Allergic reactions occur when your body produces antibodies to substances /allergens that are often harmless to other people. Reactions may severe or mild. Famvir (famciclovir) is an antiviral medication. Anaphylactic reactions, seizures, Stevens-Johnson syndrome, angioedema, vasculitis, toxic epidermal necrolysis, renal failure & erythema multiforme have occurred. ...Read more

Dr. John Chiu
2,638 Doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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Is famciclovir an alternative for acyclovir?

Is famciclovir an alternative for acyclovir?

Yes: Same spectrum of activity, but different dose and dosing schedule. ...Read more

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Is famvir (famciclovir) effective for cold sores?

Is famvir (famciclovir) effective for cold sores?

Yes: If taken at first sign of outbreak at adaquate dosing (1500mgm as single dose) should be sufficient. ...Read more

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Acyclovir and famvir, (famciclovir) can I take both?

Acyclovir and famvir, (famciclovir) can I take both?

Pointless: They're almost the same medication, so there would be no point. Take one or the other. ...Read more

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What are side effects to look for when starting famciclovir for cold sores?

Blood dyscrasia/CNS: But why use this for cold sores given the risk:benefit ratio?, unless, perhaps, one can start tx before the eruption emerges. ...Read more

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Can I cut famciclovir in half?

Can I cut famciclovir in half?

Not advised: This is not advised unless you discuss this with the physician prescribing the medication. ...Read more

Dr. Alan Ali Dr. Ali
3 doctors agreed:
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Worried about the medicine famvir (famciclovir)?

Dr. Alan Ali Dr. Ali
3 doctors agreed:
Worried about the medicine famvir (famciclovir)?

Famvir (famciclovir): Is medicine for herpes zoster. Side-effects are headache, nausea, vomiting, diarrhea, itching, painful menstruation. ...Read more

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What's an alternative to famvir (famciclovir) 500mg?

What's an alternative to famvir (famciclovir) 500mg?

Antivirals: Both Acyclovir (zovirax) and valacyclovir (valtrex) are similar in effect against some herpes viruses. ...Read more

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Famvir (famciclovir). Is this an antibiotic?

Antiviral: Famvir (famciclovir) is an antiviral medication most commonly used to treat herpes virus. ...Read more

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Will famciclovir (famvir) affect blood sugar?

Will famciclovir (famvir) affect blood sugar?

No: Blood sugar fluctuation is not a common effect of famvir, (famciclovir) however, any kind of infection can interfere with glucose regulation. ...Read more

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Is it ok to cut famciclovir in half to swallow?

Is it ok to cut famciclovir in half to swallow?

Perhaps: In that the tablets of Famciclovir are not scored, it is not the original intention of the producers that this medication be broken in half. There is a film-coating that overs the tablet helping to shield the medication taste. Nonetheless, your local pharmacist is always the best reference to ask medication questions such as this. ...Read more

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Does famciclovir help prevent the actual spread of herpes?

Yes: Yes, drugs that treat or prevent herpes (acyclovir, valacycovir, and famciclovir) also reduce the likelihood that it will be transmitted to others. ...Read more

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Diarrhea. Famvir (famciclovir) side effects or false alarm?

Maybe: Famvir (famciclovir) will cause diarrhea in 5-10% of people who take it. ...Read more

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Been on famciclovir 250mg for 4 days. Still open sores and "moving" er?

Varicella-zoster: Famciclovir may or may not shorten the duration of lesions due to this recurring viral infection, and new lesions may appear despite therapy. Would recommend that you invest in the vaccine for this as soon as the acute episode you are describing resolves. That may help limit both the frequency and severity of recurrences. Sorry this is happening and hope you are better soon. ...Read more

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Which is best for herpes: acyclovir, famciclovir, or valacyclovir?

Which is best for herpes: acyclovir, famciclovir, or valacyclovir?

All can work: All can work. Some experts feel the newer agents and especially valcyclovir are better, but each can help. The choice depends on several factors - how often someone wants to or can take the med, for example. The main issue is usually cost and whether one or the other is covered by insurance. If not coverage, Acyclovir is much cheaper. ...Read more

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Can you drink alcohol whiled taking famvir famciclovir for shingles?

In moderation: No interactions are listed between Famvir (famciclovir) and ethanol (drinking alcohol) but moderation is always wise. Famvir (famciclovir) can cause nausea & vomiting by itself. ...Read more

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What are the indications for famciclovir?

What are the indications for famciclovir?

Herpes infections: The indications for using Famciclovir include: treatment of herpes zoster (shingles), herpes simplex virus 2 (genital herpes), herpes labialis (cold sores) in immunocompetent patients, for the suppression of recurring episodes of herpes simplex virus 2, etc... However, doctors may use the anti-viral for other infections if there is good reason to believe it is helpful. ...Read more

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I've been prescribed famciclovir 3 times a day. How many hours should be between each time I take the medicine?

Doesn't matter: Roughly every 8 hours, but it doesn't really matter. Take a dose at bedtime, when you wake up, and about half way between those times. It won't matter if some doses are 1-2 hours early or late. ...Read more

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Doctor says I have a mild case of shingles. Pain on saturday then diagnosis on thursday with2 (now 3) bumps on left side. Would I be ok w/o famvir (famciclovir)?

Herpes Zoster: Famvir (famciclovir) is approved for treating herpes zoster (shingles). Whether you take it or not is best addressed w/your doc. However, if you don't take it, you run a greater risk of post-herpetic neuralgia, which is very painful. ...Read more

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About to get breast surgery and I take famvir, (famciclovir) will this effect anything?

About to get breast surgery and I take famvir, (famciclovir) will this effect anything?

Depends: 113 Years???? Famciclovir is taken for viral infection like herpes if you have active acute disease, your doctor must get medical clearance clear for surgery, some will have low WBC count then prone to infections, If breast procedure is not urgent ideal to wait till the treatment (s) is completed. ...Read more

Dr. Marvin Ott
41 Doctors shared insights

Famciclovir (Definition)

Famciclovir is a herpes viruses agent which is a kind of anti-viral ...Read more


Dr. Andrew Berry
41 Doctors shared insights

Famvir (Definition)

Famvir is a herpes viruses agent which is a kind of anti-viral ...Read more