PROFESSOR McTAVISH’S WORLD-RENOWNED PHARMACEUTICAL WISDOM — TRUSTED SINCE THE HARRISON ADMINISTRATION
Presenting to the Discerning Practitioner
Cletus McTavish’s
Online Compendium of Pharmaceutical & Homeopathic Remedies
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✦ Cures Positively Satisfaction Guaranteed* World Renowned Secret Formula 4,200+ Entries
Compiled by Prof. Cletus McTavish, H.D. (Hon.) · O.A. · F.R.H.S. (Hon.) · Ozark Apothecary Society (Suspended 1923, Reinstated 1924)
4,200+Entries~340 online; rest in print
14 Vol.Print VolumesVol. VII out of print
Est. 1887EstablishedCletus’s own claim; unverified
© 2023CopyrightOwnership, not accuracy
Featured Botanical Preparations
Curated by Cletus from the Ozark highlands and greater Tulsa metropolitan area
Valerian Root
Valeriana officinalis · Group IX · Nervine Class
For nervous exhaustion and sleeplessness. Cletus recommends a generous tablespoon before correspondence with creditors.
✦ Positively Cures: Melancholy & Existential Dread ✦
Passionflower
Passiflora incarnata · Group IX · Botanick Class
For calming excessive passions. Cletus prescribes it liberally following disputes with the Ozark Apothecary Society.
✦ Positively Cures: Excessive Passion & General Ardour ✦
Willow Bark
Salix alba · Group III-B · Analgesick Botanick
Much like aspirin, but more rustic and, in Cletus’s view, spiritually superior. He does not mention the relationship to aspirin unprompted.
✦ Positively Cures: Pain, Inflammation & Aches of Philosophical Origin ✦
From the Compendium
With Testimonials from Satisfied Patrons Received by Post
Notice: The online Compendium contains ~340 of 4,200+ entries. Entries marked Unverified † have not been reviewed since 2009. Homeopathick entries verified by Cletus personally. Browse the full Compendium →

I consulted the Compendium when my physician could not identify my ailment. Cletus’s index led me to Feverfew and Horse Chestnut. I am no worse than before.

— Mrs. E.P., Abilene, Texas  (received one complimentary volume)

The McTavish system is refreshingly unconstrained by what my colleagues call “evidence.” As a practitioner of thirty years, I value that in a reference.

— Dr. Horatio G., M.D. (retired)  (license status unverified)

I administered McTavish’s Nervine Elixir to my husband following a dispute about household accounts. He became very calm. I am not certain whether this is the desired outcome.

— Mrs. F.T., Tulsa, Oklahoma Territory  (letter undated)
★ FEATURED PREPARATION · PROF. McTAVISH RECOMMENDS ★
McTavish’s Compound Nervine Elixir
Elixirum Nervinum Compositum McTavishii
WORLD RENOWNED NERVINE RESTORER
For nervous exhaustion, excessive thinking, and the general sense of unease pervading modern life. Proprietary ingredients. Take one tablespoon before bed or at the first sign of a creditor.
⚠ Not evaluated by any regulatory body. Cletus stands by it personally, which he considers sufficient.

Recent Updates

Feb 29, 2023
Appendix III partially revised. Next update: “spring of next year.”
March 2022
Zinc sulfate gargle added; classification pending.
2019
Vol. XI available. Office hrs: Tuesdays, weather permitting.
Forum
Community forum — domain expired 2018
Drug Checker
Interactive checker — page not found
McTavish-Approved References
Reviewed and deemed “probably fine” — defer to Cletus where contradictions arise
ReferenceTypePublisher / AuthorityBest ForMcTavish’s Assessment
DailyMed (NIH)ClinicalU.S. National Library of MedicineFDA-approved drug labeling, package inserts“Reliable. Dry. Cletus approves.”
Drugs.comClinicalIndependent drug information serviceGeneral drug information, interactions, side effects“Comprehensive. Does not mention Cletus.”
MicromedexClinicalMerative (formerly IBM Watson Health)Evidence-based clinical drug reference“Thorough. Institutional. No humour.”
LexicompClinicalWolters KluwerDrug monographs, interactions, dosing“A fine resource. No entries for Oil of Oregano, which Cletus finds suspicious.”
FDA.govRegulatoryU.S. Food & Drug AdministrationDrug approvals, safety alerts, recalls“Government. Cletus has a complicated relationship with it.”
AHFS Drug InfoClinicalAmerican Society of Health-System PharmacistsAuthoritative drug monographs“Thorough and authoritative. Cletus finds it intimidating.”
ISMP via ECRISafetyInstitute for Safe Medication PracticesMedication safety, error prevention“Very cautious. Cletus finds them exhausting.”
EpocratesClinicalathenahealthPoint-of-care clinical decision support“Fast and practical. Cletus respects efficiency.”

† Links verified as of 2021. McTavish regrets any changes since that time.

McTavish-Approved References

Reviewed and deemed “probably fine” — defer to Cletus where contradictions arise

The following external resources have been reviewed by Cletus and deemed suitable for consultation. Any information that contradicts the McTavish Compendium should be set aside in deference to Cletus, who has been doing this since the Harrison Administration.

Safety & Professional Resources

Approved with reservations. Cletus finds them “overly cautious.”

ISMP via ECRIMedication safety EpocratesClinical decisions
Note from Cletus: This Compendium is © 2023 yet was last updated February 29 of that year — which, as the observant reader may note, did not exist.

Contact the McTavish Office

Response times range from prompt to geological

Send a Dispatch to Cletus

Electronic correspondence, reviewed at Cletus’s earliest convenience. Expected response: 18–36 months.

Postal Correspondence

Cletus McTavish
P.O. Box 1887, General Delivery
Hill Country, Texas (vicinity)


Response time: 18–36 months
Preferred method: Telegram
Office hours: Tuesdays, 10am–noon, weather and disposition permitting

Electronic Correspondence

cletusmc@aol.com (bouncing since 2017)

A new address has been “under consideration” since 2020.

Cletus does not use social media, having found it “injurious to the bile.”

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