Sublingual Semaglutide (generic Ozempic®) now available! Get Started
Dashboard
Formulas

Phenobarbital 15 mg Rectal Suppositories

Phenobarbital 15 mg Rectal Suppositories are a solid dosage form designed for insertion into the rectum, where they dissolve or melt to release medication. This formulation is used for the treatment of seizure disorders, including epilepsy, by providing systemic absorption of phenobarbital to help stabilize neuronal activity and prevent seizures.

Want a different strength?
Click the Text Us button below.
To prescribe, you must be a verified prescriber.
To prescribe, you must be in a state where we hold an active out-of-state pharmacy license.
Starting at
Must be E-Prescribed
Get Started
Generate LeafletShow Leaflet
This medication requires a prescription from your doctor
Trusted by 60,357 patients to date.
A group of faces of our past satisfied patients.
A svg symbol of a mortar and pestle with ingredients going in.
Custom made in our compounding labs.
Sliders that show the customization of ingredients.
Personalized treatment for better results.
User with a gear showing the personalization of the formulation.
All strengths and ingredients are tailored to your needs.
This medication is not available at retail pharmacies. It is compounded, and may be more effective at treating you or your patient.
Phenobarbital
Suppository
66fd7b0bdc31c32733aec9f2
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Loading icon rotating.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Dosing Calculator

Get general dosing information for a patient by using this calculator.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Loading icon rotating.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Formula Information

A small arrow pointing down

Phenobarbital 15 mg Rectal Suppositories are a compounded medication designed for patients who require phenobarbital but cannot take it orally. Phenobarbital is a barbiturate that acts as a central nervous system depressant, commonly used as an anticonvulsant to help control seizures in conditions such as epilepsy. The rectal suppository form provides an alternative route of administration, allowing for systemic absorption when oral intake is not possible due to factors like vomiting, loss of consciousness, or difficulty swallowing.

For patients, these suppositories offer a practical means of managing seizure activity, ensuring that the medication is delivered effectively. Upon insertion into the rectum, the suppository dissolves or melts, allowing phenobarbital to be absorbed into the bloodstream to exert its therapeutic effects. This route can be particularly useful during acute seizure episodes or for patients who have challenges with oral medications.

Drug Interactions

A small arrow pointing down

Phenobarbital 15 mg rectal suppositories are used primarily for the management of seizure disorders, including epilepsy, and may also be used for sedation purposes. As a barbiturate, phenobarbital works by depressing the central nervous system, which can help to control seizures and provide a calming effect. However, due to its mechanism of action, phenobarbital can interact with a variety of other medications, potentially altering their effects or increasing the risk of adverse reactions.

One of the most significant interactions occurs with other central nervous system depressants, such as benzodiazepines, opioids, and alcohol. When used concurrently, these substances can enhance the sedative effects of phenobarbital, leading to increased drowsiness, dizziness, and even respiratory depression. Patients should be advised to avoid alcohol and use caution when taking other CNS depressants while using phenobarbital suppositories.

Phenobarbital is also known to induce hepatic enzymes, particularly cytochrome P450 enzymes, which can accelerate the metabolism of various drugs. This can lead to reduced efficacy of medications such as anticoagulants (e.g., warfarin), oral contraceptives, and certain antiretrovirals. Prescribers should monitor therapeutic drug levels and adjust dosages as necessary when phenobarbital is introduced or discontinued in patients taking these medications.

Additionally, phenobarbital may interact with other antiepileptic drugs. For instance, it can decrease the serum levels of phenytoin and valproic acid, potentially compromising seizure control. Conversely, valproic acid can increase phenobarbital levels, raising the risk of toxicity. Regular monitoring of drug levels and clinical response is recommended when these medications are used together.

Patients with a history of porphyria should avoid phenobarbital, as it can exacerbate this condition. Furthermore, phenobarbital may reduce the effectiveness of hormonal contraceptives, so alternative or additional contraceptive measures should be considered to prevent unintended pregnancies.

For patients and prescribers considering the use of phenobarbital 15 mg rectal suppositories, it is crucial to review all current medications, including over-the-counter drugs and supplements, to identify potential interactions. Regular follow-up and communication with healthcare providers are essential to ensure safe and effective use of this medication. If you have any questions or concerns about drug interactions with phenobarbital suppositories, please reach out to us for further assistance.

How Does it Work

A small arrow pointing down

Phenobarbital 15 mg rectal suppositories are a specialized formulation designed to deliver the active medication, phenobarbital, directly into the body through the rectal cavity. This method of administration is particularly beneficial for patients who may have difficulty swallowing oral medications or require rapid absorption of the drug due to specific medical conditions. The suppository is a solid dosage form that, once inserted into the rectum, dissolves or melts at body temperature. This process allows the phenobarbital to be absorbed through the rectal mucosa into the bloodstream, providing systemic effects.

Phenobarbital is a barbiturate that acts as a central nervous system depressant. It is primarily used for its anticonvulsant properties, making it effective in the management of seizure disorders such as epilepsy. By enhancing the activity of gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter in the brain, phenobarbital helps to stabilize neuronal activity and prevent the excessive electrical discharges that characterize seizures. This mechanism of action makes it a valuable option for controlling various types of seizures, including generalized tonic-clonic and partial seizures.

The rectal administration of phenobarbital offers several advantages. It provides an alternative route for patients who are unable to take medications orally due to vomiting, difficulty swallowing, or during episodes of acute seizures when oral administration is not feasible. Additionally, rectal absorption can be more predictable and rapid compared to oral administration, which is particularly important in emergency situations where quick therapeutic effects are desired. The rectal route also bypasses the first-pass metabolism in the liver, potentially leading to more consistent plasma levels of the medication.

For prescribers, it is important to consider the appropriate dosing and frequency of phenobarbital rectal suppositories based on the individual patient's needs and medical history. Monitoring for potential side effects, such as sedation, respiratory depression, and dependence, is crucial, as these are common with barbiturate use. Patients and caregivers should be educated on the correct method of administration to ensure optimal absorption and therapeutic efficacy. It is also essential to store the suppositories properly, typically in a cool place, to maintain their integrity until use.

Patients using phenobarbital rectal suppositories should be aware of the potential side effects and interactions with other medications. They should follow the prescribed dosing regimen closely and report any adverse effects or concerns to their healthcare provider promptly. As with any medication, adherence to the prescribed treatment plan and regular follow-up with the healthcare provider are key to achieving the desired therapeutic outcomes.

If you have any questions or need further information about phenobarbital 15 mg rectal suppositories, please reach out to us at Bayview Pharmacy. Our team of compounding pharmacists is here to assist you with any inquiries or concerns you may have regarding this formulation.

Other Uses

A small arrow pointing down

Phenobarbital 15 mg rectal suppositories are primarily used for the management of seizure disorders, particularly in patients who may have difficulty swallowing oral medications or require rapid absorption. However, beyond its primary indication, this formulation can be considered for other uses under specific circumstances. One potential use is in the management of acute anxiety episodes or agitation, especially in patients who are unable to take oral medications due to nausea, vomiting, or other gastrointestinal issues. The rectal route can provide a more rapid onset of action compared to oral administration, which can be beneficial in acute situations.

Additionally, phenobarbital suppositories may be used in palliative care settings to manage symptoms such as severe anxiety, agitation, or seizures in terminally ill patients. The ease of administration and the ability to bypass the gastrointestinal tract make rectal suppositories a practical option for patients with compromised oral intake or those who are unconscious. In some cases, phenobarbital may also be used as a sedative for preoperative or procedural sedation, particularly in pediatric patients or those with special needs who may not tolerate oral or intravenous administration.

It is important for prescribers to consider the patient's overall health status, potential drug interactions, and the specific clinical scenario when considering phenobarbital rectal suppositories for off-label uses. Patients and caregivers should be educated on the proper administration technique to ensure optimal absorption and effectiveness. As with any medication, monitoring for side effects such as drowsiness, dizziness, or respiratory depression is crucial, especially when used in higher doses or in combination with other central nervous system depressants.

If you have any questions or need further information about the use of phenobarbital 15 mg rectal suppositories, please reach out to us at Bayview Pharmacy. Our team of compounding pharmacists is here to assist you with any inquiries or concerns you may have regarding this formulation.

Frequently Asked Questions

A small arrow pointing down

What is Phenobarbital 15 mg Rectal Suppository used for?

Phenobarbital 15 mg Rectal Suppositories are used to treat certain types of seizures and to relieve anxiety. They may also be used for other conditions as determined by a healthcare provider.

How do I use Phenobarbital 15 mg Rectal Suppositories?

To use Phenobarbital 15 mg Rectal Suppositories, gently insert the suppository into the rectum. It is important to follow the instructions provided by your healthcare provider or pharmacist for proper use.

How does a rectal suppository work?

A rectal suppository is a solid dosage form that is inserted into the rectum, where it dissolves or melts to release medication for local or systemic absorption.

What should I do if I miss a dose?

If you miss a dose of Phenobarbital 15 mg Rectal Suppository, use it as soon as you remember. If it is almost time for your next dose, skip the missed dose and resume your regular dosing schedule. Do not double the dose to catch up.

Are there any side effects associated with Phenobarbital 15 mg Rectal Suppositories?

Possible side effects of Phenobarbital 15 mg Rectal Suppositories include dizziness, drowsiness, headache, nausea, and constipation. If you experience severe side effects or signs of an allergic reaction, seek medical attention immediately.

Can I use Phenobarbital 15 mg Rectal Suppositories if I am pregnant or breastfeeding?

Consult your healthcare provider before using Phenobarbital 15 mg Rectal Suppositories if you are pregnant or breastfeeding, as the medication may have effects on the fetus or nursing infant.

How should I store Phenobarbital 15 mg Rectal Suppositories?

Store Phenobarbital 15 mg Rectal Suppositories at room temperature, away from moisture and heat. Keep them out of reach of children and pets.

Can I use Phenobarbital 15 mg Rectal Suppositories with other medications?

Before using Phenobarbital 15 mg Rectal Suppositories with other medications, consult your healthcare provider or pharmacist to avoid potential drug interactions.

What should I do if I experience an overdose?

If you suspect an overdose of Phenobarbital 15 mg Rectal Suppositories, seek emergency medical attention immediately. Symptoms of overdose may include severe drowsiness, confusion, and difficulty breathing.

Who should not use Phenobarbital 15 mg Rectal Suppositories?

Individuals with a known allergy to phenobarbital or any of the ingredients in the suppository should not use this medication. Additionally, those with certain medical conditions should consult their healthcare provider before use.

Related Formulas

Related Products
Formulas and/or material listed are not to be interpreted as a promise, guarantee or claim of therapeutic efficacy or safety. The information contained herein is not intended to replace or substitute for conventional medical care, or encourage its abandonment. Every patient is unique, and formulas should be adjusted to meet their individual needs.

No compounded medications are reviewed by the FDA for safety or efficacy.