Compare · Medications

Accutane vs Clindamycin

Accutane: A high-dose oral vitamin A drug for severe or scarring acne. It is the only acne treatment that can produce lasting remission after a fixed course. Clindamycin: A prescription antibiotic lotion, gel or foam for inflamed acne. It should never be used on its own, because bacteria become resistant to it quickly.

Reviewed by Dr. Schwarz, Board-Certified Dermatologist
A white blister pack photographed flat on a white background, holding eight white oblong capsules in two rows of four under clear domes. ACCUTANE is printed in blue capitals on the empty left half of the foil.A white metal tube lying at an angle on a white background, white ribbed cap to the left, labeled Clindamycin in black lettering with a teal swoosh curving beneath the word.
Which one?At a glanceWhat it treatsDiagramsHow you take itResultsSide effectsSafetyCostWhen you stopQuestions

Which one is right for you?

Choose Accutane if…

Choose for severe, scarring or stubborn acne that keeps coming back after other treatments. It is the only acne medicine that can give lasting remission after one course.

  • Nodules or cysts, or acne leaving scars
  • Antibiotics and creams have not held it
  • You can commit to monthly visits and blood tests

Choose Clindamycin if…

Choose for red, inflamed acne as a short-term partner to benzoyl peroxide or a retinoid — never on its own.

  • Inflamed spots rather than blackheads
  • You'll pair it with benzoyl peroxide
  • You want something that rarely irritates
Alternatives, not combined

Can you take them together?

Topical clindamycin is usually stopped when Accutane starts, as isotretinoin makes it unnecessary. Clindamycin may be used for milder acne before or after a course.

At a glance

● Accutane
● Clindamycin
Type
Oral retinoid (isotretinoin)
Topical antibiotic
What it does
Shrinks oil glands and stops pores clogging
Reduces acne bacteria and inflammation
Best for
Severe or scarring acne
Inflamed acne, always with benzoyl peroxide
Prescription
Yes, through the iPLEDGE program
Yes
Form
Capsule
Lotion, gel, solution or foam, 1%
How often
Once or twice daily with a fatty meal
Once or twice daily
Course length
5–8 months
Up to about 3 months
Time to results
Steady clearing from about week 4
2–6 weeks
Main side effect
Dry lips and skin
Mild dryness
Blood tests
Liver and cholesterol
None
Pregnancy
Never
Generally considered OK
Cost
Moderate; generic available
Low; generic available

What it treats

Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.

Evidence level
Accutane
Clindamycin
Strong evidenceMost established uses
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

Clears severe and stubborn acne.
Visible sebum shine and natural pores on the nose and cheek.

Oily Skin

Sharply reduces oil.
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

Reduces inflamed spots with benzoyl peroxide.
Moderate evidenceSome supportive research
Redness and fine superficial vessels across a light-skinned cheek and nose.

Rosacea

Low doses help stubborn bumps.
An inflamed lump in the armpit on fair skin. The skin over it is swollen, shiny and red, with a pair of small blackhead-like openings in the skin beside it.

Hidradenitis Suppurativa

Helps mild disease.
The back of the neck and upper back on fair skin, covered in small red bumps of even size, each one at a hair opening, several with a pinpoint of yellow-white pus.

Folliculitis

Clears bacterial bumps.
Little evidence
An inflamed lump in the armpit on fair skin. The skin over it is swollen, shiny and red, with a pair of small blackhead-like openings in the skin beside it.

Hidradenitis Suppurativa

Usually not helpful.
dark keratin plugs in dilated pores on the nose and adjacent left cheek, with the face turned to the person’s right on light skin.

Blackheads

Doesn't unclog pores.
Not effective
Acne scarring on light skin. Small sharply cut pits and broad shallow dips across a cheek, several sitting inside faint flat pink marks, with no active spots.

Acne Scarring

Doesn't treat existing scars.
—
Can make it worse
Extreme close-up of light skin in an active eczema flare, too close to tell which part of the body it is. Blotchy pink-red inflammation covers the whole frame with no clear edge, with small raised bumps, fine dry scale and a few fresh scratch marks.

Eczema

Severe dryness can trigger flares.
Shoulders and upper back on fair skin, covered in a sheet of many small pink-red bumps, all of them the same size and packed close together.

Fungal Acne

Antibiotics can let yeast overgrow.
How it works

Accutane

Isotretinoin mechanism diagram. Reduces pore clogging: Helps normalize cell buildup inside follicles. Reduces acne bacteria: Less oil makes follicles less favorable for C. acnes. Makes less oil: Shrinks oil glands and reduces their oil output. Calms inflammation: Dampens immune responses involved in acne.
Open full-size diagram
Diagram explanation and sources

Reduces pore clogging: Helps normalize cell buildup inside follicles. Reduces acne bacteria: Less oil makes follicles less favorable for C. acnes. Makes less oil: Shrinks oil glands and reduces their oil output. Calms inflammation: Dampens immune responses involved in acne.

Oral isotretinoin mechanism overview. Reduced C. acnes is an indirect effect of a changed follicular environment, not antibiotic action. The complete mechanism is not known. Gland outline is conceptual, not a measured size reduction or permanent cure.

Source 1 · Source 2 · Source 3 · Source 4

Clindamycin

Clindamycin. Helps reduce acne bacteria and inflamed spots. 1. Slows acne bacteria: Blocks the 50S ribosome that bacteria use to make proteins. 2. Limits bacterial growth: Susceptible C. acnes has less ability to multiply. 3. Reduces inflamed spots: Red bumps and pimples can gradually improve.
Open full-size diagram
Diagram explanation and sources

Slows acne bacteria: Blocks the 50S ribosome that bacteria use to make proteins. Limits bacterial growth: Susceptible C. acnes has less ability to multiply. Reduces inflamed spots: Red bumps and pimples can gradually improve.

Bacterial protein-synthesis inhibition is established. The complete acne mechanism and the contribution of individual antibacterial and anti-inflammatory effects are not fully defined. This does not imply direct exfoliation, oil-gland shrinkage, or treatment of resistant bacteria.

Source 1

How you take it

Treatment plan

Dose is set by body weight, and the total across the whole course matters more than any single day.

Starting dose: Often about 0.5 mg/kg a day, sometimes lower to ease into the side effects. Not the target.
Going up: Usually raised after the first month or two if blood tests and side effects allow, commonly to about 1 mg/kg a day.
Usual dose: About 0.5 to 1 mg/kg daily for most of the course.
Total course: Judged by cumulative dose, usually about 120 to 150 mg/kg of body weight. Reaching that total is what cuts relapse. Most people need five to eight months.

When to Apply: Once or twice a day depending on the product, a thin layer over the whole area, not single spots. With a retinoid at night, clindamycin goes in the morning.

How to Start: Full strength from day one. No ramp-up, because it rarely irritates.

If It Irritates: Uncommon. Mild dryness settles with a moisturizer. Redness or itch that builds over days can be a reaction to the base — stop and ask.

If It’s Not Working: No higher dose. It belongs alongside benzoyl peroxide or a retinoid, so the next move is a partner drug, not more of this one.

When to take it

With a fatty meal, unless you have the formulation made to work without food. Absorption of standard capsules roughly doubles with fat, so an empty stomach lowers your dose. Splitting the daily amount into two doses with meals is common.

Not covered in this guide yet
If you miss a dose

Take it with your next meal if it is the same day, otherwise skip it. Do not double up. The total over months is what counts, and the missed dose moves to the end of the course.

Not covered in this guide yet
Monitoring

Liver enzymes and triglycerides are checked before you start and again during the course, usually in the early months and after a dose increase. Cholesterol and triglycerides commonly rise, then settle afterwards.

Anyone who can become pregnant is enrolled in iPLEDGE, a federal safety program requiring two forms of contraception or documented abstinence, a pregnancy test before starting, monthly tests during, and pickup inside set time windows. Miss a window and that month starts again.

Nobody stays on this drug. The course ends, and the effect on the oil gland lasts, so most people need nothing more than a topical retinoid. A smaller group needs a second course.

No blood tests. Monitoring is clinical — at eight to twelve weeks, has the inflamed acne improved.

Not a drug to stay on for years. Bacterial resistance builds with use, which is why a course that worked once may not work again. Stop once acne is controlled and hold the result with a retinoid and benzoyl peroxide.

When you’ll see results

Approximate windows, not promises.

● Accutane
● Clindamycin
Weeks 1 to 4

Weeks 1 to 4Dry lips first, almost always. Skin dries. Acne may flare.

Weeks 4 to 12

Weeks 4 to 12Steady clearing. Dryness peaks and stays.

Months 4 to 6

Months 4 to 6Most people are clear or nearly clear.

After the course

After the courseSkin keeps improving for a few months, and dryness clears within weeks to a couple of months.

Weeks 1 to 2

Weeks 1 to 2Little visible change.

Weeks 2 to 6

Weeks 2 to 6Red bumps get less sore and less frequent. Blackheads do not change; it does not act on them.

After 12 weeks

After 12 weeksIf inflamed spots still appear at the same rate, resistance or another diagnosis is likely.

Side effects

Sorted by what to do about them.

Accutane

Clindamycin

Common
Common
  • Dry, cracked lips (almost everyone)
  • Dry skin, eyes and nose; nosebleeds
  • Acne may flare in the first month
Common
  • Mild dryness
  • Stinging from alcohol solutions
Tell your doctor
Tell your doctor
  • Low mood, anxiety or feeling not yourself
  • Joint or muscle aches that limit exercise
  • Trouble seeing at night
Tell your doctor
  • Redness or itch that builds over days
Stop and get care
Stop and get care
  • Severe headache with blurred vision
  • Severe stomach pain or yellowing skin
  • Thoughts of self-harm
Stop and get care
  • Watery or bloody diarrhea, cramps or fever

Safety and who should avoid it

Pregnancy
Never
Causes severe birth defects. Anyone who can become pregnant is enrolled in iPLEDGE: two forms of contraception or documented abstinence, and monthly pregnancy tests.
OK
Topical clindamycin is generally considered acceptable.
Breastfeeding
Avoid
Not recommended.
OK
Keep it off the nipple area.
Children
Teens OK
Commonly used from about age 12.
12 and older
Approved from age 12.
Monitoring
Required
Liver enzymes and triglycerides before starting and during the course, plus monthly visits.
None
Review at 8–12 weeks.
Key interactions
Check
Tetracycline antibiotics (raised pressure around the brain) and vitamin A supplements.
Check
Never use alone; avoid erythromycin at the same time.
Other cautions
Discuss
Tell your doctor about any history of depression or mood problems.
Use care
History of colitis or inflammatory bowel disease; allergy to clindamycin or lincomycin.

Cost and getting it

Getting it and cost

Generic isotretinoin is moderately priced; the formulations that absorb without food cost much more. The real obstacle is not cost but iPLEDGE, with monthly appointments and pickup windows to plan travel and work around.

Generic 1% solution and gel are cheap and widely stocked. Combinations with benzoyl peroxide are moderately priced, some generic. The triple combination with a retinoid is brand only and needs prior authorization.

When you stop

Comes back?
Most stay clear or much improved. About one in five needs a second course, more likely with early-teen onset, very oily skin, hormonal acne, or stopping short of the target dose.
With a retinoid or benzoyl peroxide in place, results hold. Used alone, acne returns within weeks.
Taper needed?
No. There is no withdrawal and no taper — the course ends once you reach the target total dose.
No.
After the last dose
Dryness clears over weeks to a couple of months, and skin often keeps improving for three to six months. Pregnancy precautions continue for one month after the last capsule.
Keep the partner treatment going.

Common questions

Accutane:Does isotretinoin cause depression?

The label warns about mood changes and some people report them. Large studies have not shown that isotretinoin causes depression, and severe acne itself is strongly linked to low mood. Mood is asked about at every visit, and any change should be reported.

Accutane:Does it cause inflammatory bowel disease?

The concern came from case reports, and larger studies have not shown a clear causal link. Severe abdominal pain or bloody diarrhea still needs assessment.

Accutane:Why do I need pregnancy tests if I am not sexually active?

iPLEDGE applies the same rules to everyone who can become pregnant. A program rule, not a judgement about you.

Accutane:Will one course be enough?

For most people, yes. About one in five needs a second, and stopping short of the cumulative target is the most avoidable reason.

Accutane:Can I drink on it?

Occasional drinking is usually fine. Heavy drinking adds to the liver and triglyceride effects already being monitored.

Accutane:Why did my acne get worse at the start?

An early flare is common in the first few weeks, especially with more severe acne. It is managed, not a reason to stop.

Clindamycin:Why can't I just use clindamycin on its own?

The bacteria adapt within months, and it does nothing to the clog that starts the spot. Benzoyl peroxide alongside prevents most of the resistance.

Clindamycin:It worked last year and does nothing now. Why?

The expected pattern after repeated solo courses. Resistant bacteria are already there when you restart.

Clindamycin:Is a topical antibiotic safer than tablets?

Less reaches the body, so side effects are milder. Resistance still develops, and rare bowel effects are reported.

Clindamycin:Can I use it with a retinoid?

Yes. Antibiotic in the morning, retinoid at night.

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