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Ketamine Side Effects — Long-Term and Texas Felony Charges

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TL;DR
Ketamine side effects: dissociation, hallucinations, bladder damage with chronic use. Texas Penalty Group 3 — possession without prescription is felony.
Quick Answer
Ketamine pharmacology and uses
NMDA receptor antagonist; dissociative anesthetic. Half-life: 2-3 hours. FDA-approved uses: surgical anesthesia (especially pediatric); treatment-resistant depression (esketamine/Spravato 2019); chronic pain. Off-label uses: rapid-acting depression treatment, anxiety, PTSD. Veter…
Table of Contents
Ketamine is a dissociative anesthetic with legitimate medical uses (anesthesia, treatment-resistant depression) and significant recreational abuse potential. Side effects range from short-term dissociation and hallucinations to long-term bladder damage and cognitive issues. Texas treats ketamine as Penalty Group 3 — possession without prescription is felony.

Ketamine pharmacology and uses

NMDA receptor antagonist; dissociative anesthetic. Half-life: 2-3 hours. FDA-approved uses: surgical anesthesia (especially pediatric); treatment-resistant depression (esketamine/Spravato 2019); chronic pain. Off-label uses: rapid-acting depression treatment, anxiety, PTSD. Veterinary use widespread (cats, large animals). Schedule III under federal CSA; Texas Penalty Group 3 under Health & Safety Code § 481.104.

Short-term side effects

Dissociation/depersonalization, hallucinations, nausea, vomiting, elevated blood pressure, elevated heart rate, sedation, confusion, memory impairment, slurred speech. "K-hole" — intense dissociative experience at higher doses. Anesthetic effects at high doses — life-threatening if combined with alcohol or other CNS depressants. Effects last 30-60 minutes for nasal/IV; longer for oral.

Long-term side effects of chronic use

Ketamine-induced cystitis ("K-bladder") — severe bladder damage in chronic users; can require bladder removal. Cognitive impairment — memory, executive function, attention. Mental health: depression, anxiety, psychosis. Tolerance and dependence — though not classical addiction, psychological dependence common. Liver damage at high chronic doses. Urinary tract: incontinence, frequency, painful urination — sometimes irreversible.

Penalty Group 3 under Health & Safety Code § 481.104. Possession penalties under § 481.117: under 28g — Class A misdemeanor; 28-200g — third-degree felony (2-10 years); 200-400g — second-degree (2-20 years); 400+ — first-degree (5-99 years). Delivery carries higher penalties under § 481.114. Possession with prescription: legal if dose-compliant. Veterinary clinics and ketamine treatment centers face specific regulatory requirements.

Ketamine treatment vs. recreational use

Legitimate ketamine therapy (IV infusions, intramuscular, Spravato nasal) is administered by licensed providers in clinical settings. Increasingly common for treatment-resistant depression. Costs $400-$800 per session typically. Insurance coverage variable. Recreational ketamine (typically powder for snorting) carries felony charges. Some Texas ketamine clinics face regulatory scrutiny over off-label prescribing and DEA compliance.

Source: Boca Recovery Center — How Long Does Ketamine Stay in Your System?

Texas Penalty Group 3 Charges by Weight

WeightOffenseRange
Under 28 gClass A misdemeanorUp to 1 year county jail + $4,000
28-200 g3rd degree felony2-10 years
200-400 g2nd degree felony2-20 years
400 g+1st degree enhanced5-99 years/life + $100K

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In our practice defending Texas criminal cases, we have represented clients in Collin, Dallas, Denton, and Tarrant County criminal courts on the full Texas Penal Code and Health & Safety Code spectrum. Reggie's prosecutor background in Dallas County means we know the State's evidentiary playbook; Njeri's trial-trained motion practice anchors the suppression-driven defense work.

Frequently Asked Questions

What's the long-term effect of recreational ketamine?

Bladder damage ("K-bladder") is most serious — can require bladder removal. Cognitive impairment (memory, attention). Depression, anxiety, psychosis. Liver damage at high doses. Urinary tract problems (incontinence, frequency, painful urination) — sometimes irreversible.

Is ketamine legal in Texas?

With valid prescription: yes. Without: Penalty Group 3 felony — possession up to 28g is Class A misdemeanor; over 28g is third-degree felony or higher. Veterinary ketamine theft from clinics is common diversion pathway leading to felony charges.

Does ketamine therapy work for depression?

FDA-approved esketamine (Spravato) demonstrated efficacy for treatment-resistant depression. Off-label IV ketamine infusions widely used with growing research support. Effects often rapid (hours to days) compared to traditional antidepressants (weeks). Long-term safety still being studied.

Can ketamine be detected on drug tests?

Not on standard SAMHSA-5 panel. Specific ketamine testing exists but rarely included in routine workplace tests. Detection: urine 1-3 days; blood 1 day; hair 90 days. Many Texas probation programs now include ketamine in extended panels.

What's the penalty for ketamine in Texas?

Penalty Group 3 under Health & Safety Code § 481.117. Under 28g: Class A misdemeanor (up to 1 year jail). 28-200g: third-degree felony (2-10 years). 200-400g: second-degree (2-20 years). 400+: first-degree (5-99 years). Delivery higher penalties under § 481.114.

Last reviewed: 2026-05-13 by Njeri London and Reggie London, co-founding partners, L and L Law Group, PLLC. This content is reviewed for accuracy at least every 12 months and when statutory or case-law changes occur.
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About the Authors

Njeri London, Co-Founding Partner, L and L Law Group
Njeri London
Co-Founding Partner
Texas Bar No. 24043266. Admitted: TXND, TXED, 5th Circuit. Thurgood Marshall School of Law. Focus: Fourth Amendment motion practice, drug-crime defense, federal cases. Verify on Texas Bar
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Reggie London, Co-Founding Partner, L and L Law Group
Reggie London
Co-Founding Partner
Texas Bar No. 24043514. Former Dallas County Assistant District Attorney. Extensive felony trial experience including DWI dockets. Verify on Texas Bar
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Ketamine Side Effects Texas Felony Charges

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