“HP553” is a marking stamped on a tablet, not the name of a medicine. Tablet imprints are not a reliable way to identify what you have. Take the tablet to a pharmacist, who can identify it properly — this matters especially if you think it may be an HIV medicine.
What is Hp553?
People search for “HP553” because they have a tablet marked that way and want to know what it is. That marking is an imprint code applied by a manufacturer, not a product name, and this page cannot tell you what your specific tablet contains.
Here is why identifying a tablet by its markings is genuinely unreliable:
- Imprint codes are not globally unique. Different manufacturers in different countries reuse similar codes.
- Colours and shapes vary between batches and between generic versions of the same medicine.
- Online imprint databases are mostly American and often do not cover South African generics at all.
- A tablet out of its original packaging loses the expiry date, the batch number and the storage information along with its identity.
Take it to a pharmacist. They can identify a tablet properly, using the packaging if you still have it, and they can tell you what it is in a couple of minutes at no cost. That is the reliable answer, and it is far better than a guess.
Searches for this code frequently pair it with HIV treatment, which is why the next section matters.
What is Hp553 commonly used for?
No use is asserted here, because the tablet has not been identified.
If you believe this may be an antiretroviral (HIV) medicine, identifying it correctly is more important than with almost any other class of medicine, for three reasons:
Adherence depends on knowing what you have. HIV treatment works when taken every day without gaps. If you are uncertain which tablet is which — after a clinic switch, a change of generic supplier, or a change in packaging — that uncertainty itself threatens adherence.
Taking the wrong combination causes resistance. Antiretrovirals are prescribed as specific combinations. Taking one or two agents alone, or an unintended duplicate, lets the virus develop resistance to those medicines. Resistance is generally permanent and narrows your future treatment options.
Generic substitution is normal and not a cause for alarm. If your tablets look different from last month, that usually means a different manufacturer supplied the same medicine. Confirm it with the pharmacy rather than stopping — and never stop HIV treatment because a tablet looks unfamiliar.
If you take HIV medicine and are unsure about a tablet, contact your clinic or pharmacy today. They will confirm it, and this is a routine question they are asked often.
More generally: never take a tablet you cannot identify, and never take one prescribed for someone else. If a child may have swallowed an unidentified tablet, take them and the tablet to an emergency department immediately rather than waiting for symptoms.
How Hp553 fits into this medicine category
A tablet marked with an unknown code could belong to any group. The realistic possibilities are wide:
| Group | Examples on this site |
|---|---|
| HIV antiretrovirals | Duotemtric, Acriptega |
| Antibiotics | Amoxicillin, co-trimoxazole |
| Painkillers | Paracetamol, ibuprofen |
| Blood pressure medicines | Amlodipine, enalapril |
| Mental health medicines | Amitriptyline, clobazam |
That spread is precisely the point: a marking narrows nothing usefully. See the general medicines hub.
What to check before using Hp553
Do not take it. That is the whole of the advice until it has been identified.
Take it to a pharmacist, with the packaging if you have it, or a clear photograph of both sides of the tablet if you do not.
If it is your own prescribed medicine and you have simply lost track of which is which, ask your pharmacy to label a pill organiser for you, or to print a list matching each tablet to its purpose. Pharmacies do this routinely, and it solves the problem permanently.
If it came from anyone other than a pharmacy, treat it as unidentified regardless of what you were told it is. Medicines sold outside pharmacies — online, informally, or passed on by someone else — are frequently not what they are claimed to be, and this is a documented and serious problem.
Speak to a pharmacist or doctor if:
- You take HIV medicine and are unsure about any tablet — contact your clinic promptly.
- You take several medicines and cannot tell them apart.
- A child or anyone else may have swallowed it — go to an emergency department immediately.
- You have been given tablets by someone else, however well-meant.
- Your usual medicine looks different from before.
Possible cautions and when to ask a pharmacist or doctor
Never take an unidentified tablet, and never take medicine prescribed for another person. Doses are set for an individual, and a medicine that is safe for one person can be dangerous for another.
Do not stop prescribed treatment because a tablet looks unfamiliar. Generic substitution changes appearance regularly. Confirm with the pharmacy and keep taking it in the meantime unless told otherwise — this matters most for HIV medicine, tuberculosis treatment, epilepsy medicines and blood thinners, where interruptions cause real harm.
Keep medicines in their original packaging where possible. The label carries the name, strength, expiry and instructions, and losing it creates exactly this problem.
Store medicines out of reach of children, and dispose of anything unidentified or expired by returning it to a pharmacy rather than putting it in a bin.
Seek immediate medical attention if a tablet has been swallowed by someone it was not prescribed for, particularly a child — go to an emergency department with the tablet and any packaging. Also seek urgent care for difficulty breathing, facial swelling, severe drowsiness or confusion, chest pain or palpitations after taking any unidentified medicine.
Contact your clinic or pharmacy promptly if you take HIV or TB treatment and are uncertain about any tablet.
Related medicine guides
Frequently asked questions
What is a tablet marked HP553? That is an imprint code, not a medicine name, and it cannot be identified reliably from the marking alone. Take the tablet to a pharmacist.
Is HP553 an HIV medicine? This page does not assert what it is. Searches for the code are often linked with HIV treatment, which is exactly why you should confirm it with your clinic or pharmacy rather than assume.
Why can I not just look up the imprint online? Imprint codes are not globally unique, most databases cover American products, and South African generics are often absent. A pharmacist is faster and reliable.
My HIV tablets look different this month. Should I stop? No. Different appearance usually means a different manufacturer supplied the same medicine. Confirm with the pharmacy and keep taking them.
Someone gave me these tablets. Can I take them? No. Never take medicine prescribed for another person, and never take a tablet you cannot identify.
A child may have swallowed one. What should I do? Go to an emergency department immediately with the tablet and any packaging. Do not wait to see whether symptoms develop.