Tab atarax and tab folitrax can be given same time
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atarax hydroxyzine folitrax methotrexate drug interaction
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https://www.medsafe.govt.nz/profs/PUArticles/March2024/Inter…
Here is a clear, clinically relevant answer:
Tab Atarax (Hydroxyzine) + Tab Folitrax (Methotrexate) - Can They Be Given Together?
Yes, they can generally be given together - there is no major direct pharmacokinetic or pharmacodynamic interaction between hydroxyzine and methotrexate. However, there are specific cautions to keep in mind.
What Each Drug Does
| Drug | Generic | Class | Common Use |
|---|---|---|---|
| Tab Atarax | Hydroxyzine | First-gen H1 antihistamine / anxiolytic | Pruritus, anxiety, sedation |
| Tab Folitrax | Methotrexate | DMARD / folate antagonist | RA, psoriasis, inflammatory arthritis |
No Direct Interaction
Hydroxyzine does not appear in the standard interaction tables for methotrexate. The major drugs to avoid or use with caution with methotrexate are:
- NSAIDs / aspirin / salicylates - reduce renal clearance and displace MTX from protein binding, raising plasma levels and toxicity risk
- Co-trimoxazole / trimethoprim - additive folate antagonism leading to severe myelosuppression
- Probenecid, loop diuretics, ciprofloxacin - reduce renal tubular secretion of MTX
- Hepatotoxins (azathioprine, alcohol, leflunomide, retinoids) - additive hepatotoxicity
Hydroxyzine does not fall into any of these categories.
Practical Cautions When Combining
-
Sedation overlap: If the patient is on methotrexate for RA/psoriasis and is also taking other CNS-active medications, hydroxyzine adds sedation. This is pharmacodynamic and dose-dependent, not dangerous at standard doses, but should be noted - as per Kaplan & Sadock's Comprehensive Textbook of Psychiatry.
-
Hepatic load: Both drugs undergo hepatic processing. Hydroxyzine is metabolised in the liver. Methotrexate already carries a risk of hepatotoxicity, especially with long-term use. Routine liver function monitoring (which is standard for all MTX patients) should continue. No additional liver risk from hydroxyzine specifically has been documented, but avoid adding unnecessary hepatotoxic drugs alongside MTX.
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Anticholinergic effects of hydroxyzine: Dry mouth, constipation, urinary retention - especially in elderly patients. MTX does not amplify these, but the patient's overall anticholinergic burden should be considered.
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Context of use: If Atarax is being given for pruritus in a rheumatology patient (a common scenario - MTX-related skin dryness or allergic itch), this combination is very reasonable and widely practiced.
Bottom Line
Tab Atarax + Tab Folitrax = Safe to co-prescribe. No clinically significant direct interaction exists. Monitor for additive sedation and continue routine liver function tests as per standard MTX monitoring protocol. The combination is common in rheumatology and dermatology practice.
- Medsafe NZ, Interacting safely with low-dose methotrexate (March 2024)
- Katzung's Basic and Clinical Pharmacology, 16th Edition
- Kaplan & Sadock's Comprehensive Textbook of Psychiatry
It’s for sebburic dermatitis
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methotrexate seborrheic dermatitis treatment rationale evidence
Good context gathered. Here's the updated answer:
Atarax + Folitrax for Seborrheic Dermatitis - Clarified Answer
Is Methotrexate (Folitrax) Used in Seborrheic Dermatitis?
This is an important question - methotrexate is not a standard first-line or second-line treatment for seborrheic dermatitis. The typical treatment ladder for seborrheic dermatitis is:
| Line | Treatment |
|---|---|
| 1st | Antifungal shampoos/creams (ketoconazole 2%, ciclopirox, zinc pyrithione, selenium sulfide) |
| 2nd | Topical corticosteroids (mild - hydrocortisone on face, stronger on scalp) |
| 3rd | Topical calcineurin inhibitors (tacrolimus, pimecrolimus) |
| Special cases | Phototherapy (NB-UVB) for severe/refractory disease |
Methotrexate does not appear in standard guidelines for seborrheic dermatitis. It is established for psoriasis, atopic dermatitis, and sebopsoriasis (overlap between seborrhoeic dermatitis and psoriasis) - but not for typical seborrheic dermatitis.
Exception: If the diagnosis is actually sebopsoriasis (a psoriasis-seborrheic dermatitis overlap), methotrexate becomes more appropriate.
Is Hydroxyzine (Atarax) Useful in Seborrheic Dermatitis?
Seborrheic dermatitis does not typically cause significant pruritus compared to atopic dermatitis or urticaria. Hydroxyzine is an H1 antihistamine most useful for:
- Histamine-driven itch (urticaria, eczema, allergic dermatitis)
- Anxiety
- Sedation
In seborrheic dermatitis, the itch mechanism is more irritant/inflammatory than histamine-driven, so antihistamines like hydroxyzine have limited efficacy for the itch of seborrheic dermatitis.
Bottom Line for This Specific Case
- The combination is safe - Atarax and Folitrax have no direct interaction.
- However, the use of Folitrax (methotrexate) for seborrheic dermatitis should be re-evaluated - it is not a standard indication. Consider whether the diagnosis may actually be sebopsoriasis or a refractory inflammatory dermatosis.
- Atarax has limited benefit for seborrheic dermatitis itch specifically, as the itch is not primarily histamine-mediated.
If the patient truly has severe/refractory seborrheic dermatitis not responding to standard antifungals and topical steroids, it is worth reconsidering the diagnosis or consulting a dermatologist before continuing methotrexate.
- Fitzpatrick's Dermatology, Seborrheic Dermatitis chapter
- MTX indications in skin disease - PMC review (2024)
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