Common clinical indications

• Adjunct treatment of severe allergic reactions (including anaphylaxis) after epinephrine
• Treatment of dystonic reactions (including phenothiazine toxicity)
• Short-term sleep aid
• Topical relief of pruritic skin conditions (limited use)

Related drugs in this category

• Azelastine · Azelastine
• Carbinoxamine · Carbinoxamine
• Cetirizine ± Pseudoephedrine · Cetirizine (with or without pseudoephedrine)
• Chlorpheniramine Maleate · Chlorpheniramine Maleate
• Cyproheptadine · Cyproheptadine
• Hydroxyzine · Hydroxyzine
• Loratadine · Loratadine
• Olopatadine · Olopatadine

Frequently asked questions

What is Diphenhydramine used for?

Diphenhydramine (Diphenhydramine) is listed in YMed Atlas under Antihistamine. Indications, dosing, and safety information on this page summarize curated references—always confirm with current labeling, formularies, and local protocols.

How do I adjust dosing for renal impairment or special populations?

Review the dosing sections and references for this monograph. Many agents require renal or hepatic adjustment; pediatric, pregnancy, and lactation considerations are clinician-specific. This interface is educational and does not replace individualized prescribing decisions.

Is this medical advice?

No. YMed Atlas drug pages support learning and quick reference. They are not a substitute for clinical judgment, pharmacist review, or formal interaction checking with a complete medication list.