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Valtrex Patient Information including If I Miss a Dose
In this Article
- What is valacyclovir (Valtrex)?
- What are the possible side effects of valacyclovir (Valtrex)?
- What is the most important information I should know about valacyclovir (Valtrex)?
- What should I discuss with my healthcare provider before taking valacyclovir (Valtrex)?
- How should I take valacyclovir (Valtrex)?
- What happens if I miss a dose (Valtrex)?
- What happens if I overdose (Valtrex)?
- What should I avoid while taking valacyclovir (Valtrex)?
- What other drugs will affect valacyclovir (Valtrex)?
- Where can I get more information?
What happens if I miss a dose (Valtrex)?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Valtrex)?
Seek emergency medical attention if you think you have used too much of this medicine.
Overdose symptoms may include urinating less than usual or not at all.
What should I avoid while taking valacyclovir (Valtrex)?
Valacyclovir will not prevent the spread of genital herpes. Herpes infections are contagious and you can infect other people even while you are taking with valacyclovir.
Avoid sexual intercourse or use a latex condom to prevent spreading the virus to others. Avoid letting infected areas come into contact with other people. Avoid touching an infected area and then touching your eyes. Wash your hands frequently to prevent passing the infection to others.
What other drugs will affect valacyclovir (Valtrex)?
Valacyclovir can be harmful to the kidneys, and these effects are increased when it is used together with other medicines that can harm the kidneys. Before taking valacyclovir, tell your doctor if you are also using:
- lithium (Eskalith, Lithobid);
- methotrexate (Rheumatrex, Trexal);
- pain or arthritis medicines such as aspirin (Anacin, Excedrin), acetaminophen (Tylenol), diclofenac (Voltaren), etodolac (Lodine), ibuprofen (Advil, Motrin), indomethacin (Indocin), naproxen (Aleve, Naprosyn), and others;
- medicines used to treat ulcerative colitis, such as mesalamine (Pentasa) or sulfasalazine (Azulfidine);
- medicines used to prevent organ transplant rejection, such as sirolimus (Rapamune) or tacrolimus (Prograf);
- IV antibiotics such as amphotericin B (Fungizone, AmBisome, Amphotec, Abelcet), amikacin (Amikin), bacitracin (Baci-IM), capreomycin (Capastat), gentamicin (Garamycin), kanamycin (Kantrex), streptomycin, or vancomycin (Vancocin, Vancoled);
- antiviral medicines such as adefovir (Hepsera), cidofovir (Vistide), or foscarnet (Foscavir); or
- cancer medicine such as aldesleukin (Proleukin), carmustine (BiCNU, Gliadel), cisplatin (Platinol), ifosfamide (Ifex), oxaliplatin (Eloxatin), plicamycin (Mithracin), streptozocin (Zanosar), or tretinoin (Vesanoid).
This list is not complete and there may be other drugs that can interact with valacyclovir. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about valacyclovir.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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Additional Valtrex Information
- Valtrex Drug Interactions Center: valacyclovir oral
- Valtrex Side Effects Center
- Valtrex Overview including Precautions
- Valtrex FDA Approved Prescribing Information including Dosage
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