Alternative Medications for Itching

First-Line Alternatives

The American College of Allergy, Asthma, and Immunology recommends second-generation antihistamines like cetirizine (10mg daily) as the preferred alternative to hydroxyzine for treating itching, offering similar efficacy with significantly less sedation and cognitive impairment 1, 2
Loratadine 10mg daily is effective for pruritus with minimal central nervous system effects 2
Fexofenadine 180mg daily offers relief of itching symptoms with negligible sedation 2
Moderate-potency topical corticosteroids (mometasone furoate 0.1% or betamethasone valerate 0.1%) are recommended for localized itching 2
Emollients and lotions containing urea or polidocanol are used for soothing effect and preventing skin dryness 2
Menthol creams are used for widespread itching, though efficacy may be limited 2, 3

Gabapentin (900-3600mg daily) is particularly effective for neuropathic itching 2
Pregabalin (25-150mg daily) is an alternative to gabapentin with a similar mechanism 2
Doxepin, a tricyclic antidepressant with potent antihistamine properties, is used for pruritus 2
SSRIs such as paroxetine or sertraline are effective for certain types of pruritus 2
For cholestatic itching, Ursodeoxycholic acid (UDCA) at 10-15 mg/kg per day is recommended 3
For hepatic pruritus, Rifampicin is used as first-line treatment 2
For uremic pruritus, Capsaicin cream or topical calcipotriol are used 2

Second-generation antihistamines have less sedation and cognitive impairment compared to first-generation antihistamines like hydroxyzine 1
Elderly patients should avoid first-generation antihistamines due to the risk of cognitive impairment; second-generation options are preferred 1, 2
In pregnancy, second-generation antihistamines may be safer than hydroxyzine, which is contraindicated in early pregnancy 1
Dose adjustments are necessary for many antihistamines in patients with renal impairment 1
In liver disease, hydroxyzine should be avoided and alternatives used with caution 1

Long-term use of sedating antihistamines in elderly patients may increase the risk of dementia 2
Gabapentin should not be used in hepatic pruritus despite efficacy in other forms of pruritus 2
Antihistamines alone may be insufficient for complex pruritus cases requiring combination therapy 2

The treatment algorithm recommends starting with a non-sedating second-generation antihistamine (cetirizine, loratadine, or fexofenadine) for daytime relief 1, 2
If nighttime itching is problematic, consider a low-dose first-generation antihistamine (diphenhydramine 25-50mg) for bedtime only 2
For inadequate response, consider increasing the antihistamine dose, adding H2 antihistamines, or switching to alternative treatments like gabapentin or doxepin 2
For specific causes of pruritus, use targeted therapies (UDCA for cholestatic itching, rifampicin for hepatic pruritus) 2, 3