- Claritin-D 24 Hour containing Loratadine and Pseudoephedrine Sulfate
- Clavulin-125F
- Clavulin-250
- Clavulin-250F
- Clavulin-500F
- Clean & Clear Persagel 10
- Clean & Clear Persagel 5
- Clear Away
- Clear By Design 2.5 Gel
- Clear Eyes Lubricating Eye Redness Reliever
- Clear by Design Medicated Cleansing Pads
- Clearasil Adult Care Medicated Blemish Cream
- Clearasil Adult Care Medicated Blemish Stick
- Clearasil BP Plus 5 Lotion
- Clearasil BP Plus Skin Tone Cream
- Clearasil Clearstick Maximum Strength Topical Solution
- Clearasil Clearstick Regular Strength Topical Solution
- Clearasil Double Textured Pads Maximum Strength
- Clearasil Double Textured Pads Regular Strength
- Clearasil Maximum Strength Medicated Anti-Acne 10 Tinted Cream
- Clearasil Maximum Strength Medicated Anti-Acne 10 Vanishing Cream
- Clearasil Maximum Strength Medicated Anti-Acne 10 Vanishing Lotion
- Clearasil Medicated Deep Cleanser Topical Solution
- Clearplex 10
- Clearplex 5
- Clemastine
- Cleocin
- Cleocin Injection
- Cleocin Pediatric
- Cleocin T Gel
- Cleocin T Lotion
- Cleocin T Topical Solution
- Climacteron
- Climara
| - Climara Pro containing Estradiol, Levonorgestrel/24 hours (4.4 mg and
- Clinacort
- Clinalog
- Clinda-Derm
- Clindamycin
- Clindamycin Phosphate Injection
- Clindamycin and Benzoyl Peroxide Topical
- Clindesse
- Clindex
- Clinoril
- Clinoxide
- Clioquinol
- Clioquinol Topical
- Clioquinol and Hydrocortisone
- Clipoxide
- Clobetasol
- Cloderm
- Clodronate
- Clofarabine
- Clofazimine
- Clofibrate
- Clolar
- Clomid
- Clomiphene
- Clomipramine
- Clonapam
- Clonazepam
- Clonidine
- Clonidine Tablets and Skin Patches
- Clonidine and Chlorthalidone
- Clopidogrel
- ClorazeCaps
- ClorazeTabs
| - Clorazepate
- Clotrimaderm
- Clotrimaderm Cream
- Clotrimazole
- Clotrimazole and Betamethasone
- Cloxapen
- Clozapine
- Clozaril
- Co-Apap
- Co-Gesic
- Co-Gesic containing Acetaminophen and Hydrocodone Bitartrate
- Co-Lav
- Co-Tuss V
- Co-trimoxazole Injection
- Co-trimoxazole Oral
- CoActifed
- CoActifed Expectorant
- CoLyte
- Coal Tar
- Cobex
- Cobolin-M
- Codeine Oral
- Codeprex
- Codimal PH Syrup containing Codeine Phosphate, Phenylephrine Hydrochloride, and Pyrilamine Maleate
- Cofatrim Forte
- Cogentin
- Cognex
- Col-Probenecid
- ColBenemid
- Colace
- Colazal
- Coldrine
- Colesevelam
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