Biotech is not a medicine — it is the name of a South African generic manufacturer, Biotech Laboratories. “Biotech” on a box tells you who made the tablets, not what they contain. The active ingredient, printed elsewhere on the label, is the part that matters.
What is Biotech?
Biotech Laboratories is a generic pharmaceutical manufacturer, and its name appears as a suffix on a wide range of unrelated medicines. The South African Medicine Price Registry lists products including:
| Product | Schedule | Active ingredient | Treats |
|---|---|---|---|
| Co-Trimoxazole 480 / 960 Biotech | S4 | Sulfamethoxazole + trimethoprim | Infections; HIV-related prevention |
| Doxycycline Biotech | S4 | Doxycycline 100 mg | Infections, acne, tick-bite fever |
| Metformin 500 / 850 Biotech | S3 | Metformin | Type 2 diabetes |
| Losartan Biotech 50 | S3 | Losartan | High blood pressure |
| Losartan Comp Biotech | S3 | Losartan + hydrochlorothiazide | High blood pressure |
Those five treat completely different things. An antibiotic, a diabetes medicine and two blood pressure medicines share nothing but the manufacturer’s name.
Why generic names look like this. When a medicine’s patent expires, other companies may make it. Regulators require the generic name — the actual active ingredient — to appear prominently, and manufacturers add their own name to distinguish their version. So “Metformin 500 Biotech” reads as [ingredient] [strength] [manufacturer].
Generic medicines are held to the same standards as originals. SAHPRA requires them to contain the same active ingredient at the same strength and to be bioequivalent — delivering the same amount into the bloodstream at the same rate. They cost less because the manufacturer did not fund the original research, not because they are inferior.
“Biotech 400” — a phrase people search for — could be any 400 mg product from this manufacturer. Only the label tells you which.
What is Biotech commonly used for?
There is no single answer, because Biotech is not one medicine. What your tablets treat depends entirely on the active ingredient.
How to find out, in order of speed:
Read the box. The active ingredient and strength are printed on it, usually just above or below the brand name in smaller type. That is the useful information.
Read the dispensing label. The pharmacy label on the box carries the medicine name and directions.
Look at the leaflet inside. Every registered medicine includes a patient information leaflet naming the ingredient and what it is for.
Ask the pharmacist. Free, immediate, and exactly what they are there for.
Phone the pharmacy that dispensed it if the packaging is gone. They hold the record.
The commonest reason people end up here is generic substitution. Your prescription says one thing, the pharmacy dispenses an equivalent generic, and this month’s box looks nothing like last month’s. This is normal, legal and usually saves you money. If it worries you, ask the pharmacist to confirm it is the same medicine — they will, in seconds.
Do not take a tablet you cannot identify, and do not take someone else’s because the box says the same manufacturer.
How Biotech fits into this medicine category
Biotech products span many categories. Those on the registry include:
| Category | Biotech product | Guide |
|---|---|---|
| Antibiotics | Co-trimoxazole, doxycycline | Metronidazole, Azrotrin |
| Diabetes | Metformin | Metformin guides |
| Blood pressure | Losartan, losartan + hydrochlorothiazide | Blood pressure guides |
| Mental health | Trazodone | Trazodone guide |
The manufacturer name is not a clinical category. Grouping medicines by who made them tells you nothing about what they do — which is precisely why the active ingredient is what to look for.
See the antibiotics and antimicrobials hub.
What to check before using Biotech
Identify the active ingredient first. Everything else follows from it.
Once you know what it is:
- Read the leaflet for that specific medicine.
- Check it against everything else you take. This cannot be done without knowing the ingredient.
- Confirm it was prescribed for you, not for someone else. Doses are set for a particular person, weight, kidney function and combination of medicines.
- Check the expiry date.
- Ask the pharmacist about the specific cautions for that ingredient — an antibiotic, a diabetes medicine and a blood pressure medicine have completely different ones.
If your generic has changed and something feels different, tell your pharmacist or doctor. Bioequivalence is required and generally holds, but for a few narrow-margin medicines — anti-epileptics, warfarin, thyroid medicine, lithium — staying on one manufacturer is sometimes preferred, and that is worth raising rather than assuming.
Be especially careful if you take heart or blood pressure medicines, blood thinners, diabetes medicines, epilepsy medicines, antidepressants or antiretrovirals — these are where an unexpected duplication or interaction does most harm.
Possible cautions and when to ask a pharmacist or doctor
The cautions depend entirely on the ingredient. Broadly, for the Biotech products on the registry:
- Co-trimoxazole — tell your doctor about any sulfa allergy, and stop and seek advice the same day for any rash. It is associated with rare but severe skin reactions.
- Doxycycline — take it upright with plenty of water and stay upright afterwards; it can irritate the oesophagus. It increases sun sensitivity.
- Metformin — stop temporarily if you become dehydrated from vomiting, diarrhoea or fever, and contact your doctor.
- Losartan — tell your doctor if you become pregnant; it is not used in pregnancy. Kidney function and potassium are monitored.
Get emergency help, whatever the medicine, for:
- Swelling of the face, lips or tongue, or difficulty breathing.
- A widespread rash, particularly with blistering, peeling, mouth sores or fever.
- Severe abdominal pain, vomiting blood, or black tarry stools.
- Chest pain, fainting, or a seizure.
- Any suspected overdose, even if the person seems well. Take the packaging.
Ask a pharmacist if you cannot identify a medicine, if your generic has changed and you are unsure, or if you want to know what a specific product treats. See a doctor if you have taken something you cannot identify and feel unwell, or if you take several medicines and would like them reviewed together — a medicines review is worth asking for and often finds duplications.
Related medicine guides
Frequently asked questions
What are Biotech pills used for? There is no single answer. Biotech Laboratories is a manufacturer, and its name appears on many unrelated medicines — antibiotics, diabetes tablets, blood pressure tablets and others. Read the active ingredient on the box.
What is Biotech 400 used for? It could be any 400 mg product from that manufacturer. Only the label tells you which — check it, or ask a pharmacist.
Is Biotech a medicine? No. It is a generic pharmaceutical manufacturer.
Are generic medicines as good as the original? Yes. SAHPRA requires the same active ingredient at the same strength and proven bioequivalence. They cost less because the manufacturer did not fund the original research.
My tablets look different this month. Why? Usually generic substitution — the same medicine from a different manufacturer. Ask the pharmacist to confirm; they can do it in seconds.
Does it matter which manufacturer I get? Usually not. For a few narrow-margin medicines — anti-epileptics, warfarin, thyroid medicine, lithium — staying with one manufacturer is sometimes preferred. Raise it if you are on one of those.
How do I find out what my Biotech tablets treat? Read the active ingredient on the box or the dispensing label, check the leaflet inside, or ask the pharmacist. If the packaging is gone, phone the pharmacy that dispensed it.