Isoniazid
Sold as Solonex, Isoniazid viatris, Isoniazid pharma-q, Ukuzid, Isoniazid adco, Isoniazid unimed, Solonex dt, Winthrop-isoniazid, Isoniazid, Inh (isoniazid), Lennon isoniazid, Niazid, Norstan-isoniazid, Fams I.N.H., Niaroq, Isonid, Be-tabs isoniazid
Background
Registration
- Applicants
- 13
- Registrations
- 24
- Schedule source
- Consolidated Schedules 06 July 2026
Applicants and registrations
| Applicant | Brands | Dosages | Registrations | Schedule | Leaflets |
|---|---|---|---|---|---|
| Macleods Pharmaceuticals SA (Pty) Ltd | Solonex, Solonex dt | 100 mg, 300 | 510450.446, 510451.447, 600633 | S4 | None |
| Viatris Healthcare (Pty) Ltd | Isoniazid viatris | 300 mg | 520986 | S4 | None |
| Pharma-q Holdings (Pty) LtdCertificate held by Pharma-q (Pty) Ltd | Isoniazid pharma-q, Niaroq | 100 mg, 300 | 550519, C0194 | S4 | PIPIL |
| Pharma Dynamics (Pty) Ltd | Ukuzid | 100 mg, 300 mg | 570155, 590007 | S4 | PIPIL |
| Adcock ingram limited | Isoniazid adco | 300 mg | 570419 | S4 | None |
| Unimed Healthcare (Pty) Ltd | Isoniazid unimed | 300 mg | 570903 | S4 | PIPIL |
| Sanofi-aventis South Africa (Pty) LtdCancelled | Winthrop-isoniazid, Norstan-isoniazid | 100 mg, 200 mg | A0017, A0809, A809 | S4 | None |
| The Premier Pharmaceutical Co LtdCancelled | Isoniazid | 50 mg, 100 MG, 200 MG | A0306, A0307, A0308 | S4 | None |
| Pharmacare limited û woodmead2 of 4 cancelled | Inh (isoniazid), Lennon isoniazid | 50 mg, 100 mg, 200 mg, 300 mg | A0319, A0320, J0058, J0059 | S4 | None |
| Rolab (Pty) LtdCancelled | Niazid | 200 | A0660 | S4 | None |
| Genpharm Pharmaceuticals (1993) (Pty) LtdCancelled | Fams I.N.H. | 100 mg | B0053 | S4 | None |
| Alliance Pharma (Pty) Ltd | Isonid | 200 | D0185 | S4 | None |
| Ranbaxy Pharmaceutical (Pty) Ltd | Be-tabs isoniazid | 100 | E0108 | S4 | None |
Variants
| Product | Strength and form | Registration | Status | Schedule | Leaflets |
|---|---|---|---|---|---|
| Solonex 100 Each Tablet contains: Isoniazid 100,0 mg | 100 | 510450.44651/20.2.3/0450.446 | Registered | S4 | None |
| Solonex 300 Each Tablet contains: Isoniazid 300,0 mg | 300 | 510451.44751/20.2.3/0451.447 | Registered | S4 | None |
| Isoniazid 300 MG viatris Each Tablet contains; Isoniazid 300,0 mg | 300 mg | 52098652/2.1/0986 | Registered | S4 | None |
| Isoniazid 300 MG pharma-q | 100 mgTablets | 55051955/20.2.3/0519Approved 29 July 2025 | Registered | S4 | PIPIL |
| Ukuzid 300 MG EACH TABLET CONTAINS ISONIAZID 300,0 mg | 300 mgTablet | 57015557/20.2.3/0155Approved 18 April 2023 | Registered | S4 | PIPIL |
| Isoniazid 300 MG adco Each Tablet contains: Isoniazid 300,0 mg | 300 mg | 57041957/20.2.3/0419 | Registered | S4 | None |
| Isoniazid 300 unimed EACH TABLET CONTAINS ISONIAZID 300,0 mg | 300 mgTablet | 57090357/20.2.3/903Approved 1 October 2024 | Registered | S4 | PIPIL |
| Ukuzid 100 MG Each Tablets contains: Isoniazid 100,0 mg | 100 mg | 59000759/20.2.3/0007 | Registered | S4 | None |
| Solonex 100 MG dt EACH TABLET CONTAINS: ISONIAZID 100,0 mg | 100 mg | 60063360/20.2.3/0633 | Registered | S4 | None |
| Winthrop-isoniazid 100 MG EACH TABLET CONTAINS ISONIAZID A 100,0 mg | 100 mg | A0017 | Cancelled | S4 | None |
| Isoniazid 50 MG EACH TABLET CONTAINS ISONIAZID A 50 mg | 50 mg | A0306 | Cancelled | S4 | None |
| Isoniazid 100 MG TABLET ISONIAZID A 100 MG | 100 MG | A0307 | Cancelled | S4 | None |
| Isoniazid 200 MG TABLET ISONIAZID A 200 MG | 200 MG | A0308 | Cancelled | S4 | None |
| Inh (isoniazid) tablets 50 MG EACH TABLET CONTAINS ISONIAZID A 50 mg | 50 mgTablets | A0319 | Cancelled | S4 | None |
| Lennon isoniazid 100 MG EACH TABLET CONTAINS:ISONIAZID A 100 mg | 100 mg | A0320 | Old Medicine | S4 | None |
| Niazid 200 TABLET ISONIAZID A 200 MG | 200 | A0660 | Cancelled | S4 | None |
| Winthrop-isoniazid 200 MG EACH TABLET CONTAINS ISONIAZID A 200,0 mg | 200 mg | A0809 | Cancelled | S4 | None |
| Norstan-isoniazid 200 MG EACH TABLET CONTAINS ISONIAZID A 200 mg | 200 mg | A809 | Cancelled | S4 | None |
| Fams I.N.H. 100 MG tablets TABLET ISONIAZID 100 MG | 100 mgTablets | B0053B/20.2.3/53 | Cancelled | S4 | None |
| Niaroq 300 EACH TABLET CONTAINS ISONIAZID 300,0 mg | 300 | C0194C/20.2.3/194 | Registered | S4 | None |
| Isonid 200 EACH TABLET CONTAINS ISONIAZID 200 mg | 200 | D0185D/20.2.3/185 | Registered | S4 | None |
| Be-tabs isoniazid 100* EACH TABLET CONTAINS ISONIAZID 100 mg | 100 | E0108E/20.2.3/108 | Registered | S4 | None |
| Lennon isoniazid 200 MG tablets EACH TABLET CONTAINS ISONIAZID 200 MG | 200 mgTablets | J0058J/20.2.3/58 | Cancelled | S4 | None |
| Lennon isoniazid 300 MG EACH TABLET CONTAINS: ISONIAZID 300 mg | 300 mg | J0059J/20.2.3/59 | Registered | S4 | None |
Regulatory status
Where S4 sits on the scale
Prescription-only medicine.
Schedule 4 covers most ordinary prescription medicines. You need a prescription from an authorised prescriber, such as a doctor or dentist, and a pharmacist dispenses it. Its price, name, pack size and strength can still be told to the public, as long as nothing links it to what it treats.
Schedule S4, matched to the Consolidated Schedules by ingredient, confidence high.
Who may supply: A pharmacist dispensing against a written or verbal prescription from an authorised prescriber; a veterinarian, who may also prescribe, compound or dispense it directly; a medical practitioner or dentist, who may prescribe it and may compound or dispense it directly only if licensed under section 22C(1)(a); manufacturers and wholesalers may supply people who may lawfully possess it; and, for animal treatment, a person practising a para-veterinary profession, on a veterinarian's written or verbal instruction.
Consolidated Schedules listings for Isoniazid
S4: Isoniazid
Consolidated Schedules 06 July 2026, line 6819
Pharmacological class: Tuberculostatics. (class 20.2.3)
This is an informational summary of the Medicines and Related Substances Act 101 of 1965 and its 2017 General Regulations. It is not medical advice and not legal advice. Always check the medicine's label, which carries the schedule number inside a square border, or ask a pharmacist if you are unsure.
SAHPRA documents
Schedule Verification
Isoniazid 300 MG pharma-q, Pharma-q Holdings (Pty) Ltd is scheduled S4 in its official SAHPRA documents, read with 90% confidence.
These documents are provided by SAHPRA for informational purposes. Always consult with a healthcare professional for medical advice.