Substances
4F-EPH
4f-eph4-feph
A more potent and longer lasting analogue of Ethylphenidate.
Harm potential
moderately addictive with a high potential for abuse
Source: PsychonautWiki
Dosage
This dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.
oral
light: 5-10mg
common: 10-15mg
strong: 15-30mg
Source: PsychonautWiki
View dosage charts in the KnowDrugs app
Effects
- stimulation of the central nervous system (CNS)
- dehydration
- Appetite suppression
- increased heart rate
- teeth grinding
- thought acceleration
- analysis enhancement
- Wakefulness
- Focus enhancement
- motivation enhancement
- Cognitive euphoria
- Cognitive fatigue
- increased music appreciation
- Anxiety
- depression
- irritability
- Motivation suppression
- Thought deceleration
- Increased blood pressure
- pupil dilation
- Stamina enhancement
- vasoconstriction
- Nasal damage
- Increased libido
- Decreased libido
Source: Tripsit.me
Interactions
View all interactions in the KnowDrugs app
Tolerance
full
develops with prolonged and repeated use
half
3 - 7 days
zero
1 - 2 weeks
Source: PsychonautWiki
