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C22H30N6O4S474.60 g/mol

5-[2-Ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one

Drag to rotate; arrow keys step through the atoms. Structure from PubChem CID 135398744.

Registration

Applicants
1
Registrations
1
Schedule source
Consolidated Schedules 06 July 2026

Applicants and registrations

ApplicantBrandsDosagesRegistrationsScheduleLeaflets
Macleods Pharmaceuticals SA (Pty) LtdMaklitio20 MG510406S4PIPIL

Variants

ProductStrength and formRegistrationStatusScheduleLeaflets
Maklitio 20 MG

Each tablet contains SILDENAFIL CITRATE EQUIVALENT TO SILDENAFIL 20,0 mg

20 MG51040651/7.1.5/0406RegisteredS4PIPIL

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 Sildenafil citrate equivalent to sildenafil

  • S4: Sildenafil

    Consolidated Schedules 06 July 2026, line 7926

Pharmacological class: Vasodilators - peripheral. (class 7.1.5)

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.

Background

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Research articles

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