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| Strength | Pack Size | Qty | |
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Strength
DS 800mg/160mg
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Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.
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A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Bactrim (trimethoprim/sulfamethoxazole) is an antibiotic that is prescribed to treat susceptible infections.
Bactrim is available in tablets to be taken by mouth; each tablet contains 80 mg trimethoprim and 400 mg sulfamethoxazole.
| Fact Table | |
| Formula | C10H11N3O3S (Sulfamethoxazole), C14H18N4O3 (Trimethoprim) |
| License | US FDA, EMA, Health Canada |
| Bioavailability | Sulfamethoxazole: ~85%; Trimethoprim: ~90–100% |
| Legal status | Prescription only (Rx) |
| Chemical Name | Sulfamethoxazole: 4-amino-N-(5-methylisoxazol-3-yl)benzenesulfonamide |
| Elimination half-life | Sulfamethoxazole: ~10 hours |
| Dosage (Strength) | Single strength: 400 mg SMX / 80 mg TMP |
| Pregnancy | Avoid in 1st and 3rd trimester – Risk of neural tube defects and kernicterus |
| Brands | Bactrim, Septra, Co-trimoxazole, Sulfatrim, generics |
| Protein binding | SMX: ~70%; TMP: ~45% |
| PubChem CID | 5329 (SMX), 5578 (TMP) |
| MedlinePlus | a684026 |
| ChEBI | CHEBI:9240 (SMX), CHEBI:45924 (TMP) |
| ATC code | J01EE01 |
| DrugBank | DB01015 (SMX), DB00440 (TMP) |
| KEGG | D02368 (SMX), D00433 (TMP) |
| Routes of administration | Oral, Intravenous (IV) |
Bactrim should be taken as your doctor prescribes. Speak with your doctor or pharmacist about any questions or concerns. The full course of treatment needs to be completed, regardless of improvement of symptoms.
Your doctor will tell you how much medication you should take and for how long, depending on the infection being treated and your health conditions.
The active ingredients contained in Bactrim are trimethoprim and sulfamethoxazole.
Bactrim should not be taken by patients with any of the following:
Some, but not all, Bactrim side effects include anorexia, vomiting, vertigo, seizure, rash, hives, abnormal white blood cell counts, sulfite sensitivity, and abnormal electrolyte levels. If you develop troublesome or persistent side effects, immediately speak to your doctor.
You can buy Bactrim right here.
Bactrim. Medscape. Accessed September 28, 2023.
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