Diclegis
Diclegis

1.56
Diclegis is a delayed-release oral medication explicitly indicated for the treatment of nausea and vomiting associated with pregnancy.


Availability
In Stock
Delivery
Airmail (14-21 days) | EMS trackable (5-9 days)
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Product Sheet

Active Ingredient(s)
Doxylamine Succinate, Pyridoxine
Reference Brand
Diclegis
Product Origin
Generic Alternative
Reference Manufacturer
Duchesnay
Product Form
Delayed-release tablet
Regulatory Classification
Rx
Primary Category
Women's Health
Product Category
Antihistamine, Vitamin B6
Pharmacological Class
Antiemetic
Clinical Indications
Morning sickness (nausea and vomiting of pregnancy)
Manufacturer Description
Diclegis is a delayed-release oral medication explicitly indicated for the treatment of nausea and vomiting associated with pregnancy.
Mechanism of Action
The combination of doxylamine, an antihistamine, and pyridoxine, a vitamin B6 analog, acts centrally on the vestibular and vomiting centers of the brain to suppress nausea signaling.
Route of Administration
Oral
Onset Time
1–2 hours
Duration
8 hours
Contraindications
Hypersensitivity
Severe Adverse Events
Severe sedation
Common Side Effects
Drowsiness
Uncommon Side Effects
Dry mouth
Drug Interactions
Alcohol, Sedatives
Pregnancy Safety Warnings
Used for nausea of pregnancy; consult your professional.
Storage Guidelines
Store at room temperature.
Related Products
Ondansetron, Ginger extracts

Diclegis FAQ

Can Diclegis be taken with other antihistamines?

Combining Diclegis with additional antihistamines (e.g., diphenhydramine) can increase sedation and impair alertness. If an extra antihistamine is needed, discuss dose adjustments with a clinician to avoid excessive drowsiness.

Is it safe to travel by air while taking Diclegis?

Air travel is generally safe, but the cabin environment may exacerbate fatigue. Carry the medication in your carry-on, stay hydrated, and avoid alcohol, which can heighten sedative effects.

How does Diclegis differ from over-the-counter vitamin B6 alone?

Vitamin B6 alone may alleviate mild nausea, but the addition of doxylamine provides a stronger anti-nausea effect through histamine blockade. Clinical studies have shown the combination to be more effective for moderate NVP than vitamin B6 alone.

What should I do if I experience severe drowsiness after the first dose?

If sedation interferes with daily activities, consider taking the tablet at bedtime only, or discuss a lower initial dose with your provider. Do not increase the dose without professional advice.

Are there visible differences between Diclegis tablets from different manufacturers?

In Hong Kong, Diclegis is marketed under a single brand name and tablet imprint. Generic versions, if available, may have distinct markings; always verify the imprint code with your pharmacist.

Can Diclegis cause birth defects?

Extensive pregnancy safety data show no increased risk of major congenital anomalies when Diclegis is used as prescribed. It is classified as low-risk for teratogenicity.

Is it necessary to take Diclegis with food?

Diclegis can be taken with or without food. Some patients find taking it with a light snack reduces stomach discomfort, but food does not significantly alter absorption.

How long can I safely stay on Diclegis during pregnancy?

The medication may be used throughout the first and second trimesters as needed. Discuss continuation into the third trimester with your obstetrician, as safety data beyond 28 weeks are limited.

What should I do with unused tablets after delivery?

Dispose of any remaining Diclegis tablets according to local pharmacy-take-back programs or follow the Hong Kong Department of Health’s instructions for safe medication disposal. Do not keep them for future pregnancies without consulting a clinician.

Will taking Diclegis affect my newborn’s breastfeeding?

Small amounts of doxylamine and pyridoxine pass into breast milk, but studies suggest minimal impact on the infant. Nonetheless, mothers should monitor the infant for excessive sleepiness and discuss any concerns with a lactation specialist.

What is Doxylamine Succinate and Pyridoxine Hydrochloride?

Targeting cellular pathways associated with nausea and vomiting during pregnancy, this combination serves as a primary pharmacological option for expectant individuals. This active compound consists of two distinct components: doxylamine, an antihistamine, and pyridoxine, a form of vitamin B6. These substances act in unison to manage symptoms that may otherwise impact daily function and nutrition. Individuals often encounter this formulation under various names, including the specific preparation recognized as Diclegis, which is intended for delayed release to provide consistent relief.

The chemical interaction between these two elements helps address sensory triggers and gastric signals that lead to persistent morning sickness. Scientific literature classifies this pairing as a standard approach for managing pregnancy-related nausea that proves unresponsive to conservative dietary changes. By utilizing both a sedative-like antihistamine and a vitamin supplement, the body manages internal neurological signals redirected from the gut.

Clinical formulations of this API are generally developed to prioritize both the individual and the developing fetus. The technology used in these medications often focuses on the timing of symptom onset, which is why the release mechanism is specifically engineered to target nighttime and morning periods. Consistency in administration is generally noted as a factor in maintaining stable systemic levels of the compound.

Formulations and Variations

The substance is typically presented as a controlled-release tablet designed to pass through the digestive tract and release therapy over several hours. In the Hong Kong market, patients may encounter this API in specific concentrations that align with local regulatory standards for safety and efficacy. While branded versions provide a specific delivery mechanism, generic variations may also be available, offering similar active benefits through varying secondary ingredients or excipients.

It remains standard practice for pharmacy professionals to ensure the specific formulation matches the intended release profile. Whether selecting an internationally recognized brand or a locally approved equivalent, the therapeutic intent remains oriented toward sustained symptomatic management throughout the day and night.

Primary Therapeutic Applications

  • Pregnancy-Related Nausea: This formulation is specifically indicated for the management of nausea and vomiting in individuals who are pregnant.
  • Persistent Morning Sickness: It functions to address recurring symptoms that occur throughout the day, not limited strictly to the morning hours.
  • Dietary-Resistant Symptoms: Healthcare providers often suggest this combination when changes to eating habits or smaller, more frequent meals do not sufficiently address stomach-related distress.
  • Weight Maintenance Support: By reducing the severity of vomiting, the API assists in maintaining adequate nutritional intake during critical transitional periods.

Biological Action

This combination addresses discomfort by dampening the body's sensitivity to signals that trigger the vomiting reflex. Doxylamine works primarily by blocking histamine receptors in the brain, which effectively reduces the urge to vomit and often induces a calming or mildly sedating effect. This helps the individual rest, which in turn benefits the management of physical symptoms.

Pyridoxine is added to the formulation to support essential bodily functions involved in metabolism. While the precise way B6 assists in reducing nausea is not fully understood, it is hypothesized that its presence aids in the processing of neurotransmitters that affect gut motility. Together, the two components create a dual-pathway approach that stabilizes the physical response to physiological changes during pregnancy.

Safety Profile

Common Reactions

Users may experience periods of drowsiness or lethargy, a byproduct of the antihistamine component. Some individuals might also report dry mouth or feelings of dizziness when transitioning from a resting position to standing.

Serious Reactions

Immediate medical attention is necessary if an individual experiences signs of an allergic reaction, such as swelling of the face, severe skin rashes, or difficulty breathing. Unusual heart palpitations or significant confusion should also be addressed as urgent concerns.

Contraindications

This combination is generally avoided by those with known sensitivities to doxylamine, pyridoxine, or any other ingredients found in the specific tablet. Additionally, individuals taking medication for depression or anxiety, particularly monoamine oxidase inhibitors, should avoid use as these may intensify certain physiological responses.

Interaction Awareness

Alcohol can significantly increase the sedating effects of this compound. Furthermore, other substances that cause sleepiness, such as cough remedies or sleep aids containing antihistamines, may create an additive effect. Always refer to the specific medication insert for a full list of potential drug-drug interactions relevant to your current regimen.

Usage Context and Considerations

Storage should occur in a cool, dry environment, away from direct light and out of the reach of children. The duration of therapy depends on the persistence of symptoms and is typically discussed during check-ups to assess if a tapering-off period is appropriate. Some individuals may only require the compound during the first trimester, while others might notice the need for continued support into the second. For detailed usage, dosing, and administration, refer to the specific medication's clinical information.

Glossary

Antihistamine
A pharmaceutical class that blocks the action of histamine, a natural substance in the body that can cause various physical symptoms.
Controlled-release
A mechanism that regulates the speed at which the active compound is absorbed into the bloodstream to provide continuous effect.
Contraindication
A specific condition or clinical circumstance that suggests a particular medicine should not be utilized because it may be harmful.
Pyridoxine
A water-soluble form of Vitamin B6 that plays a essential role in the body's metabolic processes and neurological health.

Clinical Disclosure

This document provides a general educational overview regarding the active ingredient found in Diclegis and is not a substitute for professional medical advice. Please be aware that individual medications vary significantly in their specific strength, delivery system, and intended use. The information presented herein does not constitute a clinical recommendation or liability for health outcomes. Always consult your specific medication packaging and a licensed healthcare professional to evaluate your unique medical circumstances.

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