From the FDA Drug Label
The recommended dosage of VALTREX for treatment of herpes zoster is 1 gram 3 times daily for 7 days The most effective analgesic medication for herpes zoster (shingles) is not specified in the provided drug labels, as they pertain to the antiviral medication valacyclovir, not analgesics.
From the Research
For shingles pain, the most effective analgesic medication is gabapentin, which should be started at 300 mg daily and gradually increased to 300-600 mg three times daily, as it has been shown to be effective in reducing neuropathic pain in patients with herpes zoster 3. The management of herpes zoster and post-herpetic neuralgia requires a combination approach, including antiviral medications, pain management, and topical options.
- Antiviral medications like valacyclovir (1,000 mg three times daily) or famciclovir (500 mg three times daily) should be started within 72 hours of rash appearance and continued for 7-10 days to reduce viral replication and associated pain 4, 5.
- For pain management, start with acetaminophen (up to 3,000 mg daily in divided doses) or NSAIDs like ibuprofen (400-600 mg every 6 hours) 6, 3.
- If pain persists, gabapentin or pregabalin can help with nerve pain, with gabapentin being the preferred option due to its efficacy in reducing neuropathic pain 3.
- Topical options include lidocaine patches (5%) applied to painful areas for up to 12 hours daily or capsaicin cream 6, 3. These medications work by either reducing inflammation, blocking pain signals, or interfering with nerve transmission.
- Cool compresses and loose clothing can provide additional comfort while the medications take effect. It is essential to note that the new zoster vaccine has been shown to be effective in reducing the incidence of herpes zoster and post-herpetic neuralgia, and early initiation of gabapentin or amitriptyline after the onset of herpes zoster is suggested for patients at high risk of developing post-herpetic neuralgia 3.