Who Writes & Reviews?
Every article is created by a U.S.-licensed professional with an active NPI number. No commercial influence on editorial decisions.
3-Step Editorial Process
- Draft: A licensed writer (MD/PharmD/DVM) researches FDA, NIH, peer-reviewed journals and writes the first draft.
- Medical Review: A second NPI-verified expert checks dosages, interactions, and guidelines; adds clinical context.
- Fact-Check & Update: Statistics, prices, and legal status are cross-verified against primary sources; article is dated and scheduled for quarterly review.
Sources We Use
- FDA (Drugs@FDA, Orange Book)
- NIH PubMed (peer-reviewed RCTs, meta-analyses)
- DEA Scheduling & Federal Register
- Clinical Practice Guidelines (AASM, APA)
- Official Price Databases (Medicaid, GoodRx API)
Update Frequency
- Quarterly review of all core pages (dosage, prices, legal status).
- Immediate update within 72 h for urgent changes (new FDA label, recall, price drop >20 %).
- Public changelog below shows what and when was changed.
Public Changelog
15 Sep 2025 – Added armodafinil ↔ modafinil potency ratio (1.33) after new PK study.
02 Jul 2025 – Clarified DEA Schedule IV personal import 90-day rule (CBP Form 6059B).
Fact-Checking Standards
- Every percentage or price is traced to primary source (PDF or .gov dataset).
- Two independent experts confirm clinical statements.
- We disclose when data is missing or conflicting.
- Sources are linked at the bottom of every page.
No Commercial Influence
Authors and reviewers have no financial ties to pharmacy or supplement brands. Affiliate commissions do not affect ranking, wording, or conclusions. See full Affiliate Disclosure.
Contact Editorial Team
Found a mistake? Want to suggest a topic? Email: [email protected] (reply within 48 h).
Frequently Asked Questions
Who writes the content on ProvigilGuide?
Articles are written by US-licensed MDs, PharmDs, or DVMs with active NPI numbers and verified diplomas.
How is medical information fact-checked?
Each article is cross-referenced with FDA, NIH, peer-reviewed journals, and clinical guidelines. Statistics are double-checked against primary sources.
How often is content updated?
Core pages are reviewed quarterly; urgent updates (new FDA label, price change) are published within 72 hours.