Buy Synalar
Synalar

22
A potent steroid treatment used for short periods to calm stubborn, inflamed skin conditions.


Category
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

Alternative/Local Brand
Synalar
Active Ingredient(s)
Fluocinolone Acetonide
Primary Category
Skin Inflammation Relief
Therapeutic Class
Dermatologicals, Corticosteroids, dermatological preparations, Corticosteroids, potent (group III)
Pharmacological Class
Potent Corticosteroid
Indications
Eczema, Psoriasis, Dermatitis, Severe insect bites
Contraindications
Skin infections (viral, bacterial, or fungal), Acne, Rosacea, Perioral dermatitis
Minor Side Effects
Stinging, Burning sensation
Moderate Side Effects
Skin thinning, Stretch marks, Changes in skin pigment, Increased hair growth
Serious Side Effects
Blurred vision, Severe skin rash, Slowing of growth in children (rare)
Dosage Forms
Cream, Ointment, Gel, Lotion
Administration Route
Topical
Mechanism of Action
This steroid cream reduces the action of chemicals in the body that cause inflammation. When applied to the skin, it reduces redness, swelling, and itching associated with varied inflammatory skin conditions.
Prescription Status
Rx
Manufacturer
Thornton & Ross
Patient Summary
A potent steroid treatment used for short periods to calm stubborn, inflamed skin conditions.
Onset Time
1-2 days
Duration
Several hours per application
Storage Instructions
Store at room temperature; do not freeze
Drug Interactions
Other topical steroids, Oral steroids
Age Restrictions
Suitable for infants, children, and adults (under medical supervision)
Pregnancy Use
Use with caution; only if prescribed by a doctor.
Alternative Drugs
Betnovate, Eumovate, Hydrocortisone

What is Synalar?

Synalar is a topical dermatologic preparation marketed as a tube containing 0.025 % fluocinolone acetonide. Fluocinolone acetonide is a synthetic corticosteroid that belongs to the class of medium-potency topical steroids. In Hong Kong, Synalar is available by prescription only and is regulated by the Hong Kong Department of Health. The tube formulation is designed for easy application to inflamed or pruritic skin areas.

How Synalar Works in the Body

Fluocinolone acetonide exerts its anti-inflammatory effect by binding to intracellular glucocorticoid receptors. Once activated, the receptor complex translocates to the nucleus and modulates gene transcription. This results in:

  • Suppression of pro-inflammatory cytokines (e.g., interleukin-1, tumor necrosis factor-α)
  • Inhibition of the migration of immune cells to the skin surface
  • Reduction of vascular permeability, which diminishes edema and erythema

Because the medication is applied directly to the skin, the systemic absorption is limited, allowing the drug to act locally while minimizing whole-body exposure. The onset of action is typically observed within a few hours, with peak anti-inflammatory effects occurring after several days of consistent use.

Conditions Treated by Synalar

Synalar is approved in Hong Kong for the topical treatment of several inflammatory skin disorders, including:

  • Atopic dermatitis (eczema) when other emollients are insufficient
  • Psoriasis vulgaris limited to mild-to-moderate plaques
  • Seborrheic dermatitis of the scalp or face
  • Discrete inflammatory rashes such as contact dermatitis

The medication is intended for adult patients and older children who can apply the tube accurately. For pediatric use, a healthcare professional should assess the appropriate potency and duration.

Patient Suitability and Contraindications

Who Should Use Synalar?

  • Individuals with confirmed inflammatory dermatoses listed above
  • Patients who have not responded adequately to non-steroidal moisturizers or barrier creams

Absolute Contraindications

  • Known hypersensitivity to fluocinolone acetonide, any corticosteroid, or any excipient in the tube
  • Untreated fungal, bacterial, or viral skin infections (e.g., tinea, impetigo, herpes simplex)

Relative Contraindications

  • Pregnancy (especially the first trimester) - discuss risk-benefit with a healthcare provider
  • Breastfeeding - topical exposure may be minimal, but caution is advised
  • Areas of thin skin (e.g., face, genital region) where prolonged use can increase the risk of atrophy

Special Populations

  • Elderly: Skin becomes more fragile; use the lowest effective amount and limit treatment duration.
  • Patients with hepatic or renal impairment: No dosage adjustment is required for topical use, but systemic absorption should be monitored if large body surface areas are treated.

If you fall into any of the categories above, consult your prescriber before initiating therapy.

Safety Profile: Side Effects and Interactions

Common Side Effects

  • Mild burning or stinging at the application site
  • Transient itching or dryness
  • Slight skin discoloration (hyper- or hypopigmentation) that usually resolves after discontinuation

Serious Adverse Events

  • Skin atrophy (thinning) with prolonged or excessive use
  • Telangiectasia (visible small blood vessels) on treated skin
  • Secondary bacterial, fungal, or viral infections due to local immunosuppression

If any of these occur, stop using Synalar and seek medical advice promptly.

Drug Interactions

  • Systemic corticosteroids: Concomitant use may increase the risk of systemic steroid effects (e.g., adrenal suppression).
  • Topical calcineurin inhibitors (e.g., tacrolimus): Use sequentially rather than simultaneously to avoid antagonistic effects.
  • Antiviral or antifungal creams: Apply these agents at least 30 minutes apart from Synalar to reduce interaction risk.

Food and Lifestyle Interactions

  • No known food interactions.
  • Avoid covering treated areas with occlusive dressings (e.g., plastic wraps) unless instructed, as this can enhance systemic absorption.
  • Sun protection is recommended; prolonged UV exposure may increase skin thinning risk.

Patients should inform their healthcare provider of all prescribed, over-the-counter, and herbal products they are using.

How to Take Synalar

  • Standard Application: Apply a thin film of the tube contents to the affected area once daily, preferably in the evening.
  • Frequency Adjustment: In more severe inflammation, a prescriber may allow a second daily application (morning and evening).
  • Area Coverage: Do not exceed the total surface area recommended by your clinician (typically no more than 10 % of body surface area for continuous use).
  • Special Populations: For facial or intertriginous regions, limit application to once daily and use the smallest amount needed.
  • Missed Dose: Apply the missed dose as soon as you remember, unless it is close to the time of the next scheduled dose; do not double the dose.
  • Overdose: Excessive application may lead to systemic corticosteroid effects such as fluid retention, increased blood pressure, or adrenal suppression. Seek emergency care if symptoms develop.
  • Discontinuation: Do not stop abruptly after long-term use. A gradual taper (e.g., every 3-5 days reduce the area of application) helps avoid rebound inflammation or withdrawal dermatitis.

Because the tube contains a fixed concentration of 0.025 %, dosage statements refer to the amount of product applied rather than milligram strengths.

Monitoring and Follow-Up

  • Clinical Review: Re-evaluate skin response after 2 weeks of therapy. If improvement is insufficient, the prescriber may adjust the treatment plan.
  • Skin Inspection: Examine treated areas for signs of atrophy, telangiectasia, or secondary infection during each visit.
  • Laboratory Tests: Routine labs are not required for short-term topical use; however, long-term extensive application may warrant cortisol level assessment to rule out systemic absorption.

Regular follow-up with a dermatologist or primary care provider ensures optimal therapeutic outcomes and early detection of adverse effects.

Storage and Handling

  • Store the Synalar tube at room temperature, preferably between 15 °C - 30 °C (59 °F - 86 °F).
  • Keep the tube tightly closed and protect it from direct sunlight and moisture.
  • Do not freeze.
  • Discard any product that has changed color, become cloudy, or is past the expiration date printed on the packaging.
  • Keep out of reach of children; store in a safe, locked cabinet if possible.

If you need to travel with Synalar, keep the tube in a carry-on bag to avoid temperature extremes in checked luggage.

Medication-Specific Glossary

Corticosteroid
A class of steroid hormones that reduce inflammation by suppressing immune responses; fluocinolone acetonide is a synthetic example used topically.
Potency
The strength of a topical steroid in producing anti-inflammatory effects; fluocinolone acetonide in Synalar is considered medium potency.
Skin Atrophy
Thinning of the epidermis and dermis that can occur with prolonged high-potency steroid use, manifesting as fragile skin.
Adverse Reaction
Any unintended, harmful response to a medication, ranging from mild irritation to serious systemic effects.
Rebound Dermatitis
Worsening of skin inflammation after abrupt discontinuation of a potent topical steroid.

Medical Disclaimer

This article provides educational information about Synalar and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.

Synalar FAQ

Can I use Synalar on my face?

Synalar can be applied to facial skin, but the area should be limited and the frequency reduced (often once daily). Because the facial skin is thinner, prolonged use increases the risk of atrophy and discoloration. Follow your prescriber’s instructions and discontinue if irritation develops.

How long should I keep using Synalar for eczema flare-ups?

Typical treatment courses last 2-4 weeks, with reassessment after the first two weeks. If the rash improves, the prescriber may advise tapering the amount or frequency to maintain control while minimizing side-effects.

Is Synalar safe for pregnant women?

Fluocinolone acetonide is classified as a Category C medication in many regions, indicating that risk cannot be ruled out. Pregnant patients should discuss potential benefits and risks with their healthcare provider before using Synalar.

Will Synalar interact with my oral antihistamine?

Topical fluocinolone acetonide has minimal systemic absorption, so significant interaction with oral antihistamines is unlikely. However, inform your prescriber of all medications you are taking.

Can I apply sunscreen over Synalar?

Yes. After the steroid has been absorbed (typically a few minutes after application), you can safely apply a broad-spectrum sunscreen to protect treated skin from UV-induced damage.

What should I do if I notice a fungal infection under the treated area?

Stop using Synalar immediately and contact your healthcare provider. Antifungal therapy may be required before re-initiating any corticosteroid treatment.

Is Synalar covered by Hong Kong’s public health insurance?

Coverage depends on the specific public or private insurance plan. Check with your insurer or the Hospital Authority for reimbursement information.

How does Synolar compare to other topical steroids like betamethasone?

Fluocinolone acetonide (Synalar) is a medium-potency steroid, whereas betamethasone can be medium to high potency depending on formulation. Choice of agent is guided by the severity of the condition, body surface area treated, and patient-specific risk factors.

Can I store Synalar in the bathroom cabinet?

Yes, provided the cabinet stays at a stable room temperature and does not experience high humidity or direct heat from showers. Avoid storing near the sink where steam may accumulate.

What is the best way to clean the tube tip after use?

Wipe the tip with a clean tissue or cotton swab and replace the cap securely. This prevents contamination and maintains dosage accuracy for subsequent applications.

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