Melasma Drug Summary

Last updated: 22 January 2026

Acne Treatment Preparations


Drug Available Strength Dosage Remarks
Azelaic acid 
(micronized)
15% gel
20% cream

Apply to affected area 12 hourly x 6 months
Re-evaluate after 4-12 weeks

Adverse Reactions

  • Usually resolve with continued use or by decreasing frequency of application: Skin irritation, pruritus, burning
  • Hypopigmentation, photosensitivity
Special Instructions
  •  Avoid exposure to excessive sunlight or UV radiation
  • Avoid contact with eyes
Mandelic acid 40% solution

Apply a few drops on cleansed face and leave for 10-20 minutes
Wash off with cold water afterwards

Adverse Reactions

  • Irritation, redness
Special Instructions
  • Test on a small area of the skin behind the ear prior to application
  • Avoid contact with eyes
  • Apply sunscreen and avoid sun exposure during use

Emollients, Cleansers & Skin Protectives*


Drug Available Strength Dosage Remarks
Arbutin (Alpha-arbutin) Cream

Apply to affected area 12 hourly

Adverse Reactions

  • Irritant contact dermatitis, erythema, occasional  photosensitivity
  • Paradoxical hyperpigmentation with high concentration
Special Instructions
  •  Use with caution in patients <12 years old
Glycolic acid Cream, peeling liquid, soap

Apply to affected area 12 hourly

Adverse Reactions

  • Irritant contact dermatitis, erythema, occasional photosensitivity
Special Instructions
  • Clean area prior to application and pat dry
  • Avoid contact with eyes and other mucous membranes
Kojic acid  Cream  Apply to affected area 12-24 hourly  Adverse Reactions
  • Irritant contact dermatitis, erythema, occasional photosensitivity
Special Instructions
  • Clean area prior to application and pat dry
  • Use with caution in patients <12 years old
  • Avoid contact with eyes 
Licorice extract  Cream, lotion, serum  Apply to affected area 12 hourly  Adverse Reactions
  • Irritant contact dermatitis, erythema, occasional photosensitivity
Special Instructions
  • Clean area prior to application and pat dry
  • Avoid contact with eyes
Niacinamide
(Nicotinamide) 
Topical cream  Apply to affected area 12 hourly  Adverse Reactions
  • Dry skin, erythema, burning sensation, irritation
Special Instructions
  • Wash face thoroughly prior to application
  • Avoid sun exposure during use
 
Tranexamic acid  Topical gel  Apply to affected area 12 hourly  Adverse Reactions
  • Skin irritation, erythema, pruritus, burning
Special Instructions
  • Use with caution in patients at risk for thrombotic complications
*Combination with other emollients are available. Please see latest MIMS for specific formulations and prescribing information.

Other Dermatologicals


Drug Available Strength Dosage Remarks
Hydroquinone 2% cream, gel
4% cream, gel
5% cream, gel

Apply to affected area 12 hourly

Adverse Reactions

  • Irritant dermatitis, contact dermatitis, mild burning, transient erythema, post-inflammatory pigmentation, ochronosis and nail bleaching
Special Instructions
  • Test for skin sensitivity before using product by applying to small area of unbroken skin (minor redness is not a contraindication, but discontinue if itching, vesicle formation, or excessive inflammatory response occurs)
  • Contraindicated in patients <12 years old
  • Discontinue use if no lightening effect is noted after 2 months of treatment
  • Discontinue if a gradual blue-black darkening of the skin occurs
Procyanidin 
(Pycnogenol)1
24 mg soft-gelatin capsule

24 mg PO 12-24 hourly

Adverse Reactions

  • GI effect (GI upset)
Special Instructions
  • Take with food
Topical Retinoid Preparations   
Tretinoin
(Retinoic acid)
0.025% cream, gel
0.05% cream, gel, lotion
0.1% cream, gel
Apply 24 hourly at bedtime Adverse Reactions
  • Usually resolve with decreasing frequency of application: Stinging, feeling of warmth, erythema, peeling
  • Edema, blistering, crusting of the skin, temporary hypo- or hyperpigmentation, photosensitivity
Special Instructions
  • Start with weaker formulation and increase concentration as tolerated
  • Avoid exposure to excessive sunlight or UV radiation
1Available in combination with vitamins. Please see latest MIMS for specific formulations and prescribing information.

Combination Therapies


Drug Available Strength Dosage Remarks
 Oral
Ascorbic acid/Betacarotene/D-alpha tocopherol/Proanthocyanidins Procyanidin (French Maritime pine bark extract) 24 mg,
Ascorbic acid (vitamin C) 60 mg,
β-carotene (vitamin A as D Salina extract) 6 mg,
d-α tocopheryl acetate 15 IU 
1-2 cap PO 24 hourly 

Adverse Reactions

  • GI upset

Special Instructions

  • Should be taken with food; take after meals
Topical 
Arbutin/Glycolic acid/Kojic acid  Arbutin 5%,
Glycolic acid 10%,
Kojic acid 2% 
Apply 24 hourly to affected areas at night 

Adverse Reactions

  • GI upset

Special Instructions

  • Should be taken with food; take after meals
Hydroquinone/
Glycolic acid
Hydroquinone 2-4%,
Glycolic acid 4%
Hydroquinone 2-4%,
Glycolic acid 10%

Apply 24 hourly during night time to the affected area

Adverse Reactions

  • Hypersensitivity reactions
Special Instructions             
  • Avoid contact with eyes
Hydroquinone/Tretinoin/Fluocinolone acetonide Hydroquinone 4%,
Tretinoin 0.05%,
Fluocinolone acetonide 0.01%

Apply 24 hourly 30 minutes before bedtime on lesions and 0.5 cm of surrounding skin

Adverse Reactions

  • Erythema, desquamation, burning, dryness, pruritus at application site 
Special Instructions           
  • Not to be used with occlusive dressing 
  • Use with caution in patients with Cushing's syndrome, hyperglycemia, glucosuria, visual disturbance (eg cataract, glaucoma, central serous chorioretinopathy)
  • Avoid excessive exposure to sunlight, sunlamp or UV light, weather extremes (eg heat or cold), and application to eyes, nose or mouth angles
Hydroquinone/Tretinoin/Mometasone furoate  Hydroquinone 2%,
Tretinoin 0.025%,
Mometasone furoate 1%
Apply 24 hourly in the evening to the affected area  Adverse Reactions
  • Dry skin, cracked skin around the nose and eyes, erythema
Special Instructions
  • Avoid contact with eyes, mouth, nose angle, thin skin, or mucous membranes
  • Avoid sun exposure during treatment
  • Contraindicated in patients ≤12 years old

Disclaimer

All dosage recommendations are for non-pregnant and non-breastfeeding women, and non-elderly adults with normal renal and hepatic function unless otherwise stated.  
Not all products are available or approved for above use in all countries.  
Products listed in the Drug Summary are based on indications stated in the locally approved product monographs.   
Please refer to local product monographs in Related MIMS Drugs for country-specific prescribing information.  

Related MIMS Drugs