Pipotiazine (Piportil): Why This Depot Phenothiazine Left Pharmacies and What Telehealth Can Still Do

Last updated: August 24, 2026

Pipotiazine is a first-generation phenothiazine antipsychotic. The long-acting form, pipotiazine palmitate, sold as Piportil and Piportil L4, was given as an intramuscular depot for maintenance care in chronic, non-agitated schizophrenia. Clinicians used it for decades. In March 2015 a global shortage of the active ingredient forced a worldwide withdrawal, and every remaining patient had to switch.

Klarity does not prescribe pipotiazine. The molecule is not a U.S. telehealth medicine. If you are looking up this name because an old record lists Piportil, or because a family member used a depot abroad, a licensed clinician can still review symptoms, history, and current options. Coverage varies by plan. Verify benefits before you book.

See conditions Klarity treats · Learn about online anxiety treatment

What is pipotiazine?

DrugBank DB01621 lists pipotiazine as an antipsychotic for chronic, non-agitated schizophrenia. The generic name is pipotiazine. Brand names include Piportil. The depot salt is pipotiazine palmitate (UNII 4Q3H01QRMI, CAS 37517-26-3). The parent compound UNII is L903J9JPYV and the CAS number is 39860-99-6. PubChem compound ID is 62867.

DrugBank groups it with other phenothiazines. Relative to some cousins, it looks less sedating and has a weaker pull toward hypotension or potentiation of CNS depressants and anesthetics. The trade-off is a high rate of extrapyramidal reactions. Overdose signs include severe extrapyramidal symptoms, hypotension, lethargy, and sedation.

The Canadian product monograph for Piportil L4 (Health Canada PDF, October 31, 2011) describes pipotiazine palmitate as the palmitic ester of a piperidine phenothiazine with antipsychotic properties and weak sedative activity. Esterification is what stretches the duration. Onset usually appears within 2 to 3 days after injection. Effects on psychotic symptoms become significant within one week. Improvement often lasts 3 to 6 weeks, and many patients stay controlled on one injection every 4 weeks. Individual response varies, so supervision stays required.

Klarity’s network includes 2,000+ licensed providers. A visit can cover current symptoms and whether a different, available medicine or therapy path makes sense. It cannot restart Piportil.

How did the depot work, and what doses did labels use?

Piportil L4 was an intramuscular solution in sesame oil at 25 mg/mL and 50 mg/mL (1 mL and 2 mL ampoules). Sanofi-Aventis marketed it in Canada from December 31, 1980. DrugBank records the 50 mg/mL presentation through March 30, 2017 and the 25 mg/mL presentation through August 17, 2016.

The Health Canada monograph dosing section is historic, not a current U.S. order:

• An initial dose of 50 mg to 100 mg may be given. Clinicians often started lower, especially after age 50.
• If needed, the dose could rise by 25 mg every 2 or 3 weeks.
• Adequate control was frequently possible with 75 to 150 mg every 4 weeks.
• Some patients needed only 25 to 50 mg every 4 weeks. Others needed up to 250 mg.

Mustafa’s 2017 naturalistic switch study in Northamptonshire (Ther Adv Psychopharmacol, PMC5228718) recorded real-world monthly doses from 50 to 200 mg (mean 92.4 mg). Fifteen of 17 patients received the injection every four weeks; two received it every two weeks.

This is a clinic injection in oil, not a home tablet and not something a video visit can administer.

Why did Piportil leave the market?

Mustafa’s paper is direct: in March 2015, pipotiazine palmitate depot was globally withdrawn because of a shortage of its active ingredient. The product had been available for more than four decades. Haddad and colleagues advised individual switch decisions, discussion of nonadherence risk, and vigilance for relapse for at least 12 months after the change.

In Northamptonshire (population nearly 700,000), 17 patients who were stable on the depot had to stop because of the withdrawal. All 17 had a documented history of nonadherence with oral treatment. Fourteen switched to another long-acting injectable. Three chose an oral alternative; those three later stopped the oral medicine and were hospitalized. Among patients who completed a year after the switch, mean hospitalization rose five-fold. The author’s conclusion: switching away from this depot was linked with clear deterioration when patients moved to oral medicine; most who stayed on another depot kept stability.

That is a UK service snapshot, not a U.S. trial. It still explains why families still search “pipotiazine” and “Piportil depot” years later.

Safety signals that still matter on old records

The Canadian monograph lists class phenothiazine risks that apply whenever this name appears in a chart:

• Extrapyramidal reactions (tremor, rigidity, akathisia, dystonia, dyskinesia, oculogyric crises) often in the first days after an injection, and at a higher rate than some other phenothiazines.
• Tardive dyskinesia with long-term use; lowest effective dose and periodic review.
• Neuroleptic malignant syndrome: hyperthermia, muscle rigidity, and autonomic instability. Stop the drug and treat as an emergency.
• Contraindications in the consumer leaflet include phenothiazine allergy, circulatory collapse or coma (especially from alcohol or drugs), severe depression, liver disease, blood disorders, kidney problems, pheochromocytoma, severe heart or vessel disease, brain damage, and high doses of sedating drugs. Not for children. Not for elderly patients with dementia.
• Overdose treatment is supportive. For severe hypotension the monograph specifies IV norepinephrine or phenylephrine, not epinephrine.

Phenothiazines as a class carry a LiverTox caution for drug-induced liver injury (NCBI Bookshelf NBK548793). That is a class note, not a unique pipotiazine trial.

If someone is in crisis now, call or text 988. Telehealth is the wrong channel for NMS, severe rigidity, or sudden collapse.

Is pipotiazine available in the United States?

DrugBank marks the record as approved, withdrawn, and (separately) vet-approved in its status flags, and the only finished products it lists are Canadian Piportil L4 intramuscular solutions that have end dates. The 2015 global withdrawal for ingredient shortage is the practical answer for patients: this depot is not something a U.S. pharmacy fills, and it is not a Klarity prescription.

Other first-generation names you may see on the same old list (promazine, mesoridazine, acetophenazine, triflupromazine, piperacetazine) have their own histories. Do not assume any of them can be substituted by brand memory. A clinician who practices today will start from current FDA-available options and your present symptoms.

What can telehealth still do?

HHS maintains a public telehealth hub at Telehealth.HHS.gov on what virtual care can cover, including behavioral health. A video visit can:

• Take a history of psychosis, mood, anxiety, sleep, and prior depots or orals.
• Screen for depression and anxiety that often travel with psychotic-spectrum illness.
• Discuss currently available oral medicines when clinically appropriate.
• Help you plan in-person follow-up if a long-acting injectable is still the right route. Those injections happen in a clinic, not on a laptop.

Insurance may cover a portion of a telehealth evaluation. It often does not. Prior authorization is common for antipsychotics. Confirm your plan before you book. Do not treat a blog as a coverage promise.

Check online anxiety treatment if worry, restlessness, or tension is the main problem today. For a broader condition map, use Klarity’s condition pages.

Frequently asked questions

What is Piportil used for?

Historic labels used pipotiazine palmitate in adults for symptoms of chronic schizophrenia without agitation. That is the DrugBank summary and the Canadian consumer leaflet. It is not a first-line U.S. product in 2026.

Is pipotiazine the same as pipothiazine?

You will see both spellings in older papers (for example Imlah 1975 in the monograph bibliography). They refer to the same phenothiazine. The palmitate ester is the depot.

Why did my relative have to switch in 2015?

Manufacturing ran out of active ingredient. Clinics worldwide stopped new and ongoing Piportil courses. Mustafa’s service switched remaining patients to other depots or, in a few cases, orals.

Can Klarity give a depot injection?

No. Depot antipsychotics require in-person administration and monitoring. Klarity’s telehealth visits are for evaluation and for medicines that fit a remote model.

Does insurance cover a visit to talk about an old antipsychotic?

It may. Benefits vary by employer plan, Medicaid, and Medicare Advantage. Ask the plan what it pays for an outpatient telehealth mental health visit, and whether a specific medicine would need prior authorization.

When to get urgent help

Go to emergency care for high fever with muscle stiffness, sudden confusion, fainting, chest pain, or thoughts of self-harm. Call or text 988 for a mental health crisis. This article is education, not a diagnosis or a prescription.

Explore conditions · Online anxiety treatment

Disclaimer: Coverage and formulary status vary by plan and change over time. Verify benefits with your insurer before you book. Klarity does not guarantee that any medicine, including historic products named here, is available or covered. This page does not replace licensed medical advice.