Differential effects of clonidine, haloperidol, diazepam and tryptophan depletion on focused attention and attentional search.
Clinical TrialRandomized Controlled Trial
Names both Clonidine and L-Tryptophan in its title.
Supplement × Prescription·Evidence index
PubMed indexes 4 records that name Clonidine and L-Tryptophan together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.
Every statement below is attributed to a named, dated, linked source.
This page lists published research relevant to Clonidine and L-Tryptophan. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
Names both Clonidine and L-Tryptophan in its title.
Names both Clonidine and L-Tryptophan in its title.
“The increase in enzyme activity appears to be mediated indirectly since it was abolished when brain catecholamine levels were depleted by pretreatment with 6-hydroxydopamine 8 days prior to clonidine treatment. The kinetic properties of tryptophan hydroxylase prepared 25 and 90 min after clonidine administration indicate that the initial increase and subsequent decrease in enzyme activity seen under these conditions may be due to changes in apparent Vmax of the enzyme.”
Names both Clonidine and L-Tryptophan in its title.
“No mean differences in WBTRP levels were observed after chronic clonidine treatment. These findings are discussed in light of a proposed intermediary role of 5HT systems in the mode of action of clonidine in the treatment of Tourette's disorder.”
Names both Clonidine and L-Tryptophan in its title.
Search-based evidence indexes have real limits, and it is worth being explicit about them:
NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Clonidine, L-Tryptophan, and several hundred other substances.
The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.