November 23, 2014
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Mylan-Valacyclovir

(valacyclovir)

DIN (Drug Identification Number)

02351579 MYLAN-VALACYCLOVIR 500MG TABLET
02351560 MYLAN-VALACYCLOVIR 1000MG TABLET

What side effects are possible with Mylan-Valacyclovir?

Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.

The side effects listed below are not experienced by everyone who takes this medication. If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor.

The following side effects have been reported by at least 1% of people taking this medication. Many of these side effects can be managed, and some may go away on their own over time.

Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.

  • abdominal pain
  • constipation
  • diarrhea
  • dizziness
  • dry mouth
  • flu-like symptoms
  • gas
  • headache
  • heartburn
  • itching
  • joint pain
  • muscle aches
  • nausea
  • skin rash
  • trouble sleeping
  • weakness

Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not seek medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

  • confusion
  • depression
  • fast heartbeat
  • hallucination
  • pain in the side between the ribs and hip or kidney area of the back
  • signs of bleeding (e.g., unusual bruising or bleeding, bleeding gums, unexplained nosebleeds)
  • signs of decreased kidney function (e.g., decreased urine production, loss of appetite, nausea)
  • unusual bleeding or bruising

Stop taking the medication and seek immediate medical attention if any of the following occur:

  • signs of a serious allergic reaction (e.g., abdominal cramps, difficulty breathing, nausea and vomiting, swelling of the face and throat)
  • signs of a severe skin reaction (e.g., a rash combined with fever or discomfort, a rash covering a large area of the body, a rash that spreads quickly, blistering, peeling)
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication.



Are there any other precautions or warnings for Mylan-Valacyclovir?

Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.

Genital herpes: To reduce the risk of spreading the virus, wash your hands immediately after touching your skin sores. You should avoid intimate contact when live lesions are visible on your skin. The herpes virus can still be spread even when you do not have blisters or sores.

Immunosuppression (weak immune system): People who have a weakened immune system should only use valacyclovir if the benefits outweigh the risks. If you have had an organ transplant, are infected with HIV, or otherwise have a weak immune system, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.

Kidney disease: Valacyclovir may cause decreased kidney function or kidney failure. People with kidney disease may need a lower dose of this medication. If you have reduced kidney function or kidney disease, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.

If you experience signs of decreased kidney function, such as decreased urine production, nausea, fatigue, or muscle twitches or cramps, contact your doctor as soon as possible.

Safer sex: Valacyclovir, when taken in appropriate doses each day, can reduce the risk of passing on genital herpes to sexual partners. It should be used in combination with safer sex practices such as using condoms and dental dams. If you have any questions about practicing safer sex, speak to your doctor.

Systemic infection: The safety and effectiveness of using valacyclovir to treat herpes zoster infection that is inside the body has not been established. This is not an accepted use for this medication.

Pregnancy: Although valacyclovir does not appear to increase the risk of harm to an unborn baby, the safety of valacyclovir use during pregnancy has not been established. This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.

Breast-feeding: This medication passes into breast milk. If you are a breast-feeding mother and are taking valacyclovir, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.

Children: The safety and effectiveness of using this medication have not been established for children.

Seniors: Seniors are more likely to have decreased kidney function than younger adults. A decreased dose of valacyclovir may be required. It is important for seniors to drink enough water while taking this medication, to remain well-hydrated.

What other drugs could interact with Mylan-Valacyclovir?

There may be an interaction between valacyclovir and any of the following:

  • cyclosporine
  • tacrolimus
  • zoster vaccine

If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:

  • stop taking one of the medications,
  • change one of the medications to another,
  • change how you are taking one or both of the medications, or
  • leave everything as is.

An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.

Medications other than those listed above may interact with this medication. Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications that you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.

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