Summary
(R)-Modafinil (also known as Armodafinil and by the brand names Nuvigil, Artvigil, and Waklert) is a eugeroic substance of the benzhydryl class. Armodafinil is the enantiopure formulation of modafinil (brand name Provigil). As opposed to the racemic formulation, which contains a 50/50 mix of both the (S) and (R) enantiomers, armodafinil consists of just the (R)-enantiomer of modafinil.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 40-100mg | 100-200mg | 200-300mg | 300mg+ |
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 20-60 min | 1-2.5 hrs | 4-7 hrs | 2-5 hrs | 7.3-15.5 hrs |
Effect Profile
20 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 20 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong stimulation, focus, and anxiety/jitters with mild euphoria
Tolerance
Tolerance Decay
Users report some loss of effect with continuous daily use over weeks; spacing doses (e.g., weekends off) may slow tolerance. Empirical, anecdotal data only; no robust human PK/PD tolerance studies specific to armodafinil. Prioritise sleep hygiene to reduce compensatory dose escalation.
Cross-Tolerances
Effects
Aggregated from 20 Erowid experience reports