dapsone topical vs phenobarbital

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Side-by-side comparison of dapsone topical and phenobarbital. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

moderate Known Drug Interaction

7.4 Concomitant Use with Drugs that Induce Methemoglobinemia Concomitant use of ACZONE Gel, 7.5% with drugs that induce methemoglobinemia such as sulfonamides, acetaminophen, acetanilide, aniline dyes, benzocaine, chloroquine, dapsone, naphthalene, nitrates and nitrites, nitrofurantoin, nitroglycerin, nitroprusside, pamaquine, para‐aminosalicylic acid, phenacetin, phenobarbital, phenytoin, primaquine, and quinine may increase the risk for developing methemoglobinemia [see Warnings and Precautions ( 5.1 )] .

Drug Class
dapsone topical Topical Anti-Inflammatory
phenobarbital Anticonvulsant (Barbiturate)
Type
dapsone topical Prescription
phenobarbital Prescription
Summary
dapsone topical

Aczone Gel is a topical medicine used to treat acne. It helps reduce inflammation and kill bacteria that cause acne.

phenobarbital

Phenobarbital is a medicine that can help control seizures and calm you down. It belongs to a class of drugs called barbiturates.

What It Treats
dapsone topical

Aczone Gel is used to treat acne in people ages 9 and older. It helps to clear up pimples and prevent new ones from forming. Use it as directed by your doctor.

phenobarbital

This medicine is used to treat generalized and partial seizures. Seizures are caused by unusual electrical activity in the brain. Phenobarbital helps to reduce this activity and prevent seizures.

How It Works
dapsone topical

Aczone Gel contains dapsone, which is a type of anti-inflammatory medicine. It works by reducing swelling and redness. It also kills certain bacteria that can cause acne.

phenobarbital

Phenobarbital works by slowing down the activity of your brain and nervous system. It increases the effects of a natural chemical in the body called GABA. This helps to reduce seizures and promote relaxation.

Common Side Effects
dapsone topical
  • Dryness where you put the gel
  • Itching where you put the gel
phenobarbital
  • Drowsiness
  • Sedation
  • Lethargy
  • Vertigo
FAERS Reports
dapsone topical

No adverse event reports.

phenobarbital
  • Seizure 1,534
  • Drug Interaction 635
  • Toxicity To Various Agents 621
  • Status Epilepticus 482
  • Multiple-Drug Resistance 442
Serious Warnings
dapsone topical

Aczone Gel can cause a rare but serious condition called methemoglobinemia. If your skin turns bluish or grey, stop using Aczone Gel and get medical help right away. If you have a G6PD deficiency, talk to your doctor before using this medicine. It may cause blood problems.

phenobarbital

You should not take this medicine if you are allergic to barbiturates. Also, do not take it if you have a history of porphyria, severe liver problems, or breathing problems.

Pregnancy
dapsone topical

It is not known if Aczone Gel can harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is not known if Aczone Gel passes into breast milk. Talk to your doctor before breastfeeding.

phenobarbital

Tell your doctor if you are pregnant or plan to become pregnant. Phenobarbital can harm an unborn baby. Talk to your doctor about the risks and benefits of taking this medicine while breastfeeding.

Also Compare, Nearby Drugs

Compare phenobarbital with

How to Read This dapsone topical vs phenobarbital Comparison

dapsone topical is classified in the Topical Anti-Inflammatory drug class, while phenobarbital sits within the Anticonvulsant (Barbiturate) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, dapsone topical has 0 submissions while phenobarbital has 3,714. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known moderate interaction flagged in FDA labeling, attributed to both of these medicines can cause a blood condition where your red blood cells cannot carry oxygen properly. taking them together increases the risk of this serious blood problem occurring.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for dapsone topical or phenobarbital.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.