Here are the standard doses of Valtrex for adults and children:. These dosages are only general guidelines. If your doctor prescribes Valtrex differently, then you should follow their instructions.
Valtrex is most effective when started as soon as symptoms begin, so see your doctor immediately if you have symptoms. If you miss a dose of Valtrex, you should take the next dose as soon as possible. Look for the expiration date on the prescription label to see how long your particular version of Valtrex is good for.
Expired medications can be less effective and risky to take. Some medications are also sensitive to heat, so be sure to store Valtrex at room temperature. This helps your kidneys process it more efficiently. Even though it starts working right away, it may take several days for you to notice a difference in your symptoms. Acyclovir brand name Zovirax is another antiviral drug that can be used to treat herpes virus and varicella-zoster virus infections. You can compare the medications here.
Skip to main content Search for a topic or drug. Valtrex side effects and interactions, and how to avoid them. Top Reads in Drug Info. Can you mix Trintellix and alcohol? Does hydroxyzine for anxiety work? Do coffee and Zoloft mix? Treating heartburn during pregnancy Oct. If you are using the oral suspension, use a specially marked measuring spoon or other device to measure each dose accurately.
The average household teaspoon may not hold the right amount of liquid. Drink extra fluids so you will pass more urine while you are using this medicine. This will keep your kidneys working well and help prevent kidney problems. To help clear up your infection, keep taking valacyclovir for the full time of treatment, even if your symptoms begin to clear up after a few days.
Do not miss any doses. However, do not use this medicine more often or for a longer time than your doctor ordered. The dose of this medicine will be different for different patients.
Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine.
Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.
Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. If you or your child's symptoms do not improve within a few days, or if they become worse, check with your doctor. The areas affected by genital herpes, chickenpox, or shingles should be kept as clean and dry as possible. Also, wear loose-fitting clothing to avoid irritating the sores blisters. It is important to remember that this medicine will not keep you from spreading herpes to others.
Herpes infection of the genitals can be caught from or spread to your partner during any sexual activity. Even though you may get herpes if your partner has no symptoms, the infection is more likely to be spread if sores are present. This is true until the sores are completely healed and the scabs have fallen off. Therefore, it is best to avoid any sexual activity if either you or your sexual partner has any symptoms of herpes.
Source partners were followed for recurrences of genital herpes; 89 were enrolled in a substudy of HSV-2 mucosal shedding. Both partners were counseled on safer sex and were offered condoms at each visit. The predefined primary end point was the reduction in transmission of symptomatic genital herpes. Results: Clinically symptomatic HSV-2 infection developed in 4 of susceptible partners who were given valacyclovir, as compared with 16 of who were given placebo hazard ratio, 0.
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