Key Facts
- Drug Class
- Rifamycin antibiotic
- Prescription
- Required
- NAFDAC Status
- Check Registration
- Forms
- Capsule, Tablet, Suspension, Injection
- Price Range
- ₦500 - ₦8,000
- WHO Essential
- Yes
What is Rifampicin?
Rifampicin is one of the most important antibiotics in the world, serving as the backbone of tuberculosis (TB) treatment globally and in Nigeria. It belongs to the rifamycin class of antibiotics and works by inhibiting bacterial RNA synthesis — specifically, it blocks the enzyme RNA polymerase, which bacteria need to produce proteins essential for their survival and replication. This mechanism makes rifampicin highly effective at killing Mycobacterium tuberculosis, the bacterium that causes TB. Nigeria ranks among the World Health Organisation's 30 high-burden countries for tuberculosis, with an estimated 467,000 new TB cases annually and approximately 155,000 TB-related deaths each year. Despite this enormous burden, case detection remains a major challenge — many TB cases go undiagnosed and untreated, particularly in underserved communities across northern Nigeria, urban slums in Lagos, and rural areas with limited access to diagnostic facilities.
In Nigeria, rifampicin is provided free of charge through the National Tuberculosis and Leprosy Control Programme (NTBLCP) under the DOTS (Directly Observed Therapy, Short-course) strategy. The DOTS programme ensures that patients take their medication under the direct observation of a healthcare worker, community volunteer, or treatment supporter, which significantly improves adherence and cure rates. TB treatment centres are located in general hospitals, primary health centres, and DOTS centres across all 36 states and the Federal Capital Territory. The standard TB treatment regimen consists of two phases: an intensive phase of 2 months using four drugs — Rifampicin, Isoniazid, Pyrazinamide, and Ethambutol (collectively known as RHZE) — followed by a continuation phase of 4 months using Rifampicin and Isoniazid alone (RH). The entire treatment duration is a minimum of 6 months, and it is absolutely critical that patients complete the full course.
One of the most distinctive and alarming (for patients who are not forewarned) characteristics of rifampicin is that it turns body fluids an orange-red colour. Urine, tears, sweat, saliva, and even semen will take on an orange to reddish tinge during treatment. This is completely harmless and is simply due to the colour of the drug and its metabolites being excreted from the body, but patients must be warned about this in advance to prevent unnecessary panic or discontinuation of treatment. Healthcare workers at DOTS centres in cities like Abuja, Kano, Lagos, Enugu, and Kaduna routinely counsel patients about this effect before starting treatment. Another critical consideration is that rifampicin is a potent inducer of liver enzymes (particularly CYP3A4), which means it significantly reduces the blood levels of many other medicines, including antiretrovirals, oral contraceptives, warfarin, and antidiabetic drugs. This is particularly important in Nigeria where TB-HIV co-infection is common, requiring careful medication management.
What is Rifampicin used for?
In Nigeria, Rifampicin is commonly used for:
- First-line treatment of drug-susceptible pulmonary tuberculosis (TB of the lungs) — the most common form of TB in Nigeria
- Treatment of extrapulmonary TB including TB meningitis, TB lymphadenitis (scrofula), spinal TB, abdominal TB, and miliary TB
- Treatment of TB-HIV co-infection, requiring careful coordination with antiretroviral therapy
- Treatment of leprosy (Hansen's disease) as part of multi-drug therapy — Nigeria still has pockets of leprosy in some states
- Treatment of selected cases of latent TB infection in high-risk individuals (such as HIV-positive patients and close contacts of active TB cases)
- Treatment of certain non-tuberculous mycobacterial infections and serious staphylococcal infections (including prosthetic joint infections) in combination with other antibiotics
Dosage
IMPORTANT
Always follow your doctor's or pharmacist's instructions. The information below is for general reference only.
Adults
For TB treatment: 10mg per kg of body weight daily (usual dose is 450mg for patients weighing less than 50kg, or 600mg for patients weighing 50kg or more), taken as a single dose on an empty stomach, preferably 30 minutes to 1 hour before breakfast. Rifampicin is best absorbed on an empty stomach. The intensive phase lasts 2 months (RHZE combination), followed by 4 months of continuation phase (RH combination). Fixed-dose combination tablets containing rifampicin with other anti-TB drugs are commonly used in Nigeria to simplify dosing and improve adherence.
Children
For TB treatment in children: 15mg per kg of body weight daily (range 10-20mg/kg), up to a maximum of 600mg daily. Paediatric formulations including dispersible tablets and suspensions are available. Child-friendly fixed-dose combinations (FDCs) are now distributed through the NTBLCP. Dosing is based on weight bands as per WHO guidelines. Always follow the dosing chart provided by the prescribing clinician at the DOTS centre.
Elderly
The standard weight-based dose applies to elderly patients. However, elderly patients are at higher risk of hepatotoxicity (liver damage) and should have liver function tests monitored more frequently, particularly during the first two months of treatment. Dose reduction may be necessary in patients with significant liver impairment. Rifampicin should be used cautiously in elderly patients taking multiple other medications due to its extensive drug interactions.
Always take rifampicin on an empty stomach for optimal absorption — at least 30 minutes before a meal or 2 hours after eating. The entire course of treatment (minimum 6 months for drug-susceptible TB) must be completed even if symptoms improve within the first few weeks. Stopping treatment early is the single biggest cause of drug-resistant TB, including the deadly multidrug-resistant TB (MDR-TB). Attend all scheduled appointments at your DOTS centre. If you experience nausea, try taking the medication at bedtime on an empty stomach instead of in the morning.
Side Effects
Common side effects
- •Orange-red discolouration of urine, tears, sweat, saliva, and other body fluids — this is harmless but can permanently stain contact lenses and light-coloured clothing
- •Nausea and vomiting — particularly at the start of treatment; taking the medication at bedtime can help
- •Loss of appetite — common in the first few weeks of treatment
- •Abdominal pain or stomach cramps
- •Mild skin rash or itching
- •Headache and dizziness
Serious side effects — seek medical help immediately
- Hepatotoxicity (liver damage) — the most serious side effect of rifampicin. Symptoms include yellowing of the eyes and skin (jaundice), dark urine, pale stools, severe nausea, and right upper abdominal pain. This requires immediate medical attention and discontinuation of the drug.
- Thrombocytopenia — a dangerous reduction in blood platelets that can cause unusual bruising, petechial rash, or prolonged bleeding. More common with intermittent dosing.
- Acute kidney failure — particularly with intermittent or irregular dosing, which can trigger an immune-mediated reaction
- Flu-like syndrome — fever, chills, muscle aches, and malaise, typically occurring with intermittent therapy
- Severe allergic reaction (anaphylaxis) — rare but life-threatening
- Haemolytic anaemia — destruction of red blood cells, causing severe anaemia, jaundice, and dark urine
When to see a doctor
Seek immediate medical attention if you develop yellowing of the eyes or skin, severe abdominal pain, persistent vomiting, dark urine (beyond the expected orange tinge), unusual bruising or bleeding, severe skin rash, high fever, or difficulty breathing. In Nigeria, go directly to your DOTS treatment centre or the nearest hospital emergency department. Do not wait — hepatotoxicity from rifampicin can progress rapidly if not identified and managed early. Your healthcare provider may need to check your liver function tests and temporarily stop the medication. Never restart rifampicin on your own after a serious reaction — this must be done under medical supervision.
Warnings & Precautions
Do not take Rifampicin if you have:
- Known hypersensitivity to rifampicin or other rifamycin antibiotics (e.g., rifabutin, rifapentine)
- Jaundice or active severe liver disease — rifampicin is hepatotoxic and can worsen pre-existing liver damage
- Concurrent use with certain protease inhibitor-based HIV regimens (such as atazanavir, darunavir, lopinavir/ritonavir) without appropriate dose adjustments, as rifampicin drastically reduces their levels
- Concurrent use with voriconazole — rifampicin reduces voriconazole levels to subtherapeutic concentrations
Drug interactions
- •Antiretroviral drugs — rifampicin dramatically reduces blood levels of protease inhibitors, NNRTIs (efavirenz, nevirapine), and integrase inhibitors (dolutegravir). For TB-HIV co-infected patients on TLD, an additional 50mg dolutegravir dose is required 12 hours after the TLD tablet.
- •Oral contraceptive pills — rifampicin significantly reduces the effectiveness of combined oral contraceptives and progestogen-only pills. Women of childbearing age must use alternative or additional contraception (such as condoms or depot medroxyprogesterone injections) during rifampicin treatment.
- •Warfarin and other anticoagulants — rifampicin reduces their effect, requiring dose increases and close INR monitoring
- •Antidiabetic drugs (metformin, glibenclamide, insulin) — rifampicin can reduce the effectiveness of oral hypoglycaemics, potentially worsening blood sugar control
- •Corticosteroids (prednisolone, dexamethasone) — rifampicin reduces corticosteroid levels; dose adjustment may be needed
- •Antiepileptic drugs (phenytoin, carbamazepine) — rifampicin reduces their levels, increasing seizure risk
Pregnancy & Breastfeeding
Rifampicin crosses the placenta and is excreted in breast milk. However, it is considered essential for the treatment of active TB during pregnancy, as untreated TB poses a far greater risk to both mother and baby than the medication itself. The WHO and Nigerian guidelines recommend that pregnant women with active TB should receive the standard rifampicin-containing regimen. There is a theoretical risk of postnatal bleeding in the newborn due to rifampicin's effect on Vitamin K-dependent clotting factors, and Vitamin K should be administered to the newborn at birth (which is routine practice in Nigeria). Breastfeeding mothers on rifampicin should continue breastfeeding, as the amount of drug in breast milk is minimal and not harmful to the infant. The breast milk may appear slightly orange-tinged, which is harmless.
Brands of Rifampicin in Nigeria
3 brands available in Nigeria.
| Brand Name | Manufacturer | Strength | Form |
|---|---|---|---|
| Rimactane | Novartis | 150mg, 300mg | Capsule |
| Rifadin | Sanofi | 150mg, 300mg | Capsule |
| Rifampicin (Generic) | Various | 150mg, 300mg, 450mg, 600mg | Capsule |
How to Verify Your Rifampicin is Genuine
- 1Check for a valid NAFDAC registration number on the packaging. All genuine medicines sold in Nigeria must carry a NAFDAC registration number.
- 2Use the NAFDAC Mobile Authentication Service (MAS): scratch the security panel on the packaging and send the unique code via SMS to 38353 to confirm authenticity.
- 3Obtain TB medications only through the DOTS programme at designated treatment centres, government hospitals, or NAFDAC-registered pharmacies. TB medicines provided through the DOTS programme are quality-assured.
- 4Inspect the capsules or tablets — rifampicin capsules are typically reddish-brown in colour. If the appearance differs significantly from what you have previously received, report this to your healthcare provider.
- 5Check the expiry date and ensure the packaging is intact with no evidence of tampering, water damage, or fading of printed information.
- 6Be cautious of unusually cheap rifampicin sold outside of the formal health system — substandard and counterfeit TB drugs are a serious threat to public health in Nigeria and can contribute to the development of drug-resistant TB.
Rifampicin Price in Nigeria
Rifampicin prices in Nigeria typically range from ₦500 to ₦8,000 per pack, depending on the brand, strength, and where you buy it.
₦500 – ₦8,000
per pack
Prices vary by location and vendor. Last updated: 2026-02-01
Where to Buy
Purchase Rifampicin only from licensed pharmacies and verified distributors. Avoid buying medicines from unverified sources, roadside vendors, or unregistered market stalls.
Frequently Asked Questions
Sources
- •NAFDAC Greenbook — National Agency for Food and Drug Administration and Control registered products database
- •WHO Model List of Essential Medicines (23rd List, 2023)
- •British National Formulary (BNF)
- •Nigerian Standard Treatment Guidelines