Evidence-based health information for research and educational purposes only.
Brain Health & Nootropics
Educational research reference. This page was restored from the structured compound dataset included with this site export. Protocol examples are context for review and are not medical advice.

At a glance

Route(s)

Subcutaneous

Target

Enkephalinase

Timing window

As Needed / Morning

Regulatory status

unapproved or compounded peptide with fda safety risk flag

Protocol context

Standard Protocol

TimeframeDose / exposureNotes
Weeks 1-4250mcg to 500mcg dailyAdministered in the morning to lower baseline anxiety, or as-needed for acute stress.

Alternative: Sleep Aid

TimeframeDose / exposureNotes
As Needed500mcg pre-bedHelps calm a racing mind to facilitate sleep onset without acting as a direct sedative.

Protocol logic

Nootropic protocols are state-dependent: sleep, anxiety, stimulants, psychiatric history, and route can change the response. The logic is morning-biased, low-entry dosing, and stopping if arousal or mood destabilizes. Entry context: target (Enkephalinase); route Subcutaneous; timing As Needed / Morning. Unapproved or source-dataset dosing tables are hypotheses, not recommendations. FDA/safety flags lower confidence and raise the evidence bar for any claimed benefit.

Side effects / cautions listed in dataset

  • Mild fatigue and sedation at high doses: the most commonly reported adverse effect; dose-dependent; occurs primarily at doses above 500mcg; characterized by a calm, slightly sleepy state that is usually welcome in evening use but problematic for daytime productivity at excessive doses.
  • Mild dizziness: uncommon; related to the brief cardiovascular effects of enkephalin potentiation.
  • Mild headache: uncommon; transient; reported in a small subset of users in the initial days of a cycle.
  • Reduced motivation in some subjects: enkephalin potentiation produces profound emotional calm that, in a minority of subjects, blunts goal-directed drive and ambition; resolve with dose reduction.
  • Emotional blunting at high doses: excessive enkephalin tone can produce emotional flatness; this is the upper-dose limit signal that warrants dose reduction.
  • Nasal irritation with intranasal formulations: mild; not applicable to subcutaneous administration.
  • No withdrawal syndrome: Selank has no physical dependence liability; cessation does not produce rebound anxiety, insomnia, or other withdrawal phenomena that characterize benzodiazepine discontinuation.
  • No cognitive impairment: unlike benzodiazepines, Selank does not impair memory formation, reaction time, or processing speed at anxiolytic doses; the opposite is typically observed.
  • No respiratory depression: GABA-independent mechanism means Selank carries no overdose risk from respiratory suppression.

Contraindications / risk flags listed in dataset

  • Known hypersensitivity to Selank, tuftsin-derived peptides, or formulation excipients.
  • Concurrent use with opioid analgesics: Selank increases endogenous enkephalin tone via enkephalinase inhibition; in subjects already on opioid agonists, the additive mu/delta opioid receptor activity theoretically potentiates opioid effects and may complicate analgesic dosing.
  • Concurrent use with benzodiazepines or barbiturates: while Selank does not act on GABA-A receptors, overlapping CNS depressant effects in highly anxiolytic-saturated subjects may produce excessive sedation; use with caution.
  • Active severe depressive episode with psychomotor retardation: while Selank has mood-stabilizing properties, its primary anxiolytic action without stimulant properties could theoretically deepen motivational suppression in severely retarded depression; monitor carefully.
  • Pregnancy: no clinical safety data.
  • Breastfeeding: no safety data.
  • Pediatric use: not established.
  • Narcolepsy or hypersomnia: Selank's enkephalin-potentiating activity could worsen daytime sleepiness in subjects with pre-existing hypersomnia disorders.

Related compounds

Sources bundled with this entry