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clindamycin hydrochloride

Clindamycin Hydrochloride is a lincosamide antibacterial used to treat Acne Vulgaris, Actinomycetales Infections, Bacteroides Infections, Pneumocystis Pneumonia.

Lincosamide Antibacterial · by Chartwell Molecular

Generic of Cleocin Hydrochloride

Not yet rated· sourced from the FDA label
Rated against independent regulatory sources·Last updated June 7, 2026·How we rate
Verified againstopenFDANIH DailyMedRxClass
$0.18 /g
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Key facts

Active ingredient
Clindamycin Hydrochloride
Form
Capsule
Strength
Clindamycin Hydrochloride EQ 150MG Base · Clindamycin Hydrochloride EQ 300MG Base · Clindamycin Hydrochloride EQ 75MG Base
Type
Prescription (Rx)
Brand or generic
Generic
Half-life
about 2.4 hours (how long it stays in your system)
What the pharmacy pays
~$0.18 per gm — not your price
FDA application
ANDA065243

What is Clindamycin Hydrochloride?

From the FDA label:Clindamycin hydrochloride is the hydrated hydrochloride salt of clindamycin. Clindamycin is a semisynthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent compound lincomycin. Clindamycin Hydrochloride Capsules, USP contain clindamycin hydrochloride equivalent to 75 mg, 150 mg, or 300 mg of clindamycin. Inactive ingredients: 75 mg - lactose monohydrate, corn starch, magnesium stearate, talc, D&C Yellow No. 10, FD&C Green No. 3, and gelatin; 150 mg - lactose monohydrate, corn starch, magnesium stearate, talc, D&C Yellow No. 10, FD&C Green No. 3, D&C Red No. 33, FD&C Blue No. 1, titanium dioxide, and gelatin; 300 mg - lactose monohydrate, corn starch, magnesium stearate, talc, D&C Red No. 33, FD&C Blue No. 1, FD&C Green No. 3, titanium dioxide, and gelatin. The capsule imprinting ink contains: shellac glaze in ethanol, ferrosoferric oxide, propylene glycol, FD&C Blue #2, FD&C Red #40, D&C Yellow #10 and FD&C Blue #1. The structural formula is represented below: The chemical name for clindamycin hydrochloride is Methyl 7-chloro-6,7,8-trideoxy-6-(1-methyl- trans -4-propyl-L-2-pyrrolidinecarboxamido)-1-thio-L- threo -α-D- galacto -octopyranoside monohydrochloride. image description

How to use

If significant diarrhea occurs during therapy, this antibiotic should be discontinued (see BOXED WARNING ). Adults : Serious infections - 150 to 300 mg every 6 hours. More severe infections - 300 to 450 mg every 6 hours. Pediatric Patients (for children who are able to swallow capsules) : Serious infections - 8 to 16 mg/kg/day (4 to 8 mg/lb/day) divided into three or four equal doses. More severe infections - 16 to 20 mg/kg/day (8 to 10 mg/lb/day) divided into three or four equal doses. Clindamycin should be dosed based on total body weight regardless of obesity. To avoid the possibility of esophageal irritation, clindamycin HCl capsules should be taken with a full glass of water. Clindamycin HCl capsules are not suitable for children who are unable to swallow them whole. The capsules do not provide exact mg/kg doses therefore it may be necessary to use the clindamycin palmitate oral solution in some cases. Serious infections due to anaerobic bacteria are usually treated with clindamycin injection. However, in clinically appropriate circumstances, the physician may elect to initiate treatment or continue treatment with clindamycin HCl capsules. In cases of β-hemolytic streptococcal infections, treatment should continue for at least 10 days.

Side effects

The following reactions have been reported with the use of clindamycin. Infections and Infestations : Clostridioides difficile colitis Gastrointestinal : Abdominal pain, pseudomembranous colitis, esophagitis, nausea, vomiting, and diarrhea (see BOXED WARNING ). The onset of pseudomembranous colitis symptoms may occur during or after antibacterial treatment (see BOXED WARNING ). Esophageal ulcer has been reported. An unpleasant or metallic taste has been reported after oral administration. Hypersensitivity Reactions : Generalized mild to moderate morbilliform-like (maculopapular) skin rashes are the most frequently reported adverse reactions. Vesiculobullous rashes, as well as urticaria, have been observed during drug therapy. Severe skin reactions such as Toxic Epidermal Necrolysis, some with fatal outcome, have been reported (see WARNINGS ). Cases of Acute Generalized Exanthematous Pustulosis (AGEP), erythema multiforme, some resembling Stevens-Johnson syndrome, anaphylactic shock, anaphylactic reaction and hypersensitivity have also been reported. Skin and Mucous Membranes : Pruritus, vaginitis, angioedema and rare instances of exfoliative dermatitis have been reported (See Hypersensitivity Reactions ). Liver : Jaundice and abnormalities in liver function tests have been observed during clindamycin therapy. Renal : Acute kidney injury (see WARNINGS ). Hematopoietic :…

FDA Boxed Warning (the FDA’s most serious warning)

Boxed (black-box) warning — from the FDA label

Clostridioides difficile- associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including clindamycin HCl and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon, leading to overgrowth of C. difficile . Because clindamycin HCl therapy has been associated with severe colitis which may end fatally, it should be reserved for serious infections where less toxic antimicrobial agents are inappropriate, as described in the INDICATIONS AND USAGE section. It should not be used in patients with nonbacterial infections such as most upper respiratory tract infections. C. difficile produces toxins A and B, which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated.

Warnings

Important safety information

See BOXED WARNING Clostridioides difficile- Associated Diarrhea Clostridioides difficile- associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including clindamycin hydrochloride capsules, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon, leading to overgrowth of C. difficile . C. difficile produces toxins A and B, which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated. Anaphylactic and Severe Hypersensitivity Reactions Anaphylactic shock and anaphylactic reactions have been reported (see ADVERSE REACTIONS ). Severe hypersensitivity reactions, including severe skin reactions such as toxic epidermal necrolysis (TEN), drug reaction with eosinophilia and systemic symptoms (DRESS), and Stevens-Johnson syndrome (SJS), some with fatal outcome, have been reported (see ADVERSE REACTIONS ). In case of such an anaphylactic or severe hypersensitivity reaction, discontinue treatment permanently and institute appropriate therapy. A careful inquiry should be made concerning previous sensitivities to drugs and other allergens. Nephrotoxicity Clindamycin is potentially nephrotoxic and cases with acute kidney injury have been reported. Consider monitoring of renal function particularly in patients with pre-existing renal dysfunction or those taking concomitant nephrotoxic drugs. In case of acute kidney injury, discontinue clindamycin HCl when no other etiology is identified. Usage in Meningitis - Since clindamycin does not diffuse adequately into the cerebrospinal fluid, the drug should not be used in the treatment of meningitis.

Who should not take Clindamycin Hydrochloride

Clindamycin HCl is contraindicated in individuals with a history of hypersensitivity to preparations containing clindamycin or lincomycin.

Overdose — what happens if you take too much

Significant mortality was observed in mice at an intravenous dose of 855 mg/kg and in rats at an oral or subcutaneous dose of approximately 2,618 mg/kg. In the mice, convulsions and depression were observed. Hemodialysis and peritoneal dialysis are not effective in removing clindamycin from the serum.

U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.

How long does Clindamycin Hydrochloride stay in your body?

The elimination half-life of clindamycin hydrochloride is about 2.4 hours — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. The label gives an average biological (elimination) half-life of 2.4 hours for oral clindamycin hydrochloride, the active form. It runs slightly longer in older adults (about 4.0 hours, range 3.4–5.1, vs 3.2 hours, range 2.1–4.2, in younger adults) and is increased slightly in people with markedly reduced kidney or liver function. Clindamycin palmitate (oral pediatric solution) and clindamycin phosphate (injection) are inactive prodrugs that are hydrolyzed in the body to this same active clindamycin. Half-life reflects how fast the drug leaves the blood, not how long a drug test can detect it.

This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: CLEOCIN HYDROCHLORIDE (clindamycin hydrochloride) capsule — FDA label, DailyMed.

Drug class

How this class works, per Clindamycin - StatPearls - NCBI Bookshelf.

May treat (source: NIH RxClass)

Dosage forms

Capsule

The forms currently marketed in the U.S., per the FDA National Drug Code Directory.

Ways to save

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Frequently asked questions

What does Clindamycin Hydrochloride treat?
Clindamycin Hydrochloride (Clindamycin Hydrochloride) may be used to treat acne vulgaris, actinomycetales infections, bacteroides infections, pneumocystis pneumonia, staphylococcal infections, streptococcal infections, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
How does Clindamycin Hydrochloride work?
Clindamycin Hydrochloride is a lincosamide antibacterial. Lincosamides such as clindamycin attach to the bacterial ribosome, the cell's protein-building machine, and stop it from linking amino acids together. Because the bacteria can no longer make the proteins they need, their growth is halted or, depending on the organism and dose, they are killed.
How much does Clindamycin Hydrochloride cost?
Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $0.18 per gm, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.
Is there a coupon or discount for Clindamycin Hydrochloride?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Clindamycin Hydrochloride. To pay less, Clindamycin Hydrochloride is already a generic — usually the lowest-cost version — so the main levers are comparing cash prices between pharmacies and using a pharmacy discount-card service. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
Who makes Clindamycin Hydrochloride?
Clindamycin Hydrochloride is marketed by Chartwell Molecular. You can see Chartwell Molecular's full profile, rating, and other products on pharmaranks.
Is Clindamycin Hydrochloride a brand-name or generic drug?
Clindamycin Hydrochloride is a generic medication; its active ingredient is Clindamycin Hydrochloride. Generics contain the same active ingredient as the brand-name original and are usually lower cost.
Is Clindamycin Hydrochloride available over the counter?
No. Clindamycin Hydrochloride is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
What forms does Clindamycin Hydrochloride come in?
Clindamycin Hydrochloride is currently marketed as capsule, per the FDA's National Drug Code Directory.
What class of drug is Clindamycin Hydrochloride?
Clindamycin Hydrochloride is classified as lincosamide antibacterial, per the FDA's Established Pharmacologic Class.
Is Clindamycin Hydrochloride FDA-registered?
Clindamycin Hydrochloride is on record with the U.S. FDA under application number ANDA065243. You can verify this on its official FDA label.
Is Clindamycin Hydrochloride safe?
There's no single safe-or-not verdict, and we don't yet have a composite recall-safety score for Clindamycin Hydrochloride. Review its FDA-label side effects and warnings below, and always consult a licensed professional.
What are the side effects of Clindamycin Hydrochloride?
Clindamycin Hydrochloride's side effects are taken directly from its FDA label. From the label: The following reactions have been reported with the use of clindamycin. Infections and Infestations : Clostridioides difficile colitis Gastrointestinal : Abdominal pain, pseudomembranous colitis, esophagitis, nausea, vomiting, and diarrhea (see BOXED WARNING ).… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.

Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.

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