top menu action banner

VALDOXAN 25MG TABLETS 28`S

Ksh 14,699

In Stock

  • Product Categories:

What is this medicine and what is it used for?

Agomelatine is an antidepressant with a unique, novel mechanism of action that distinguishes it from all other antidepressants. It works in two ways: it acts as an agonist (activator) at melatonin MT1 and MT2 receptors (resynchronising circadian rhythms and improving sleep architecture), while simultaneously acting as an antagonist (blocker) at serotonin 5-HT2C receptors (enhancing dopamine and noradrenaline release in the prefrontal cortex without affecting serotonin reuptake).

Because it does not inhibit serotonin reuptake, agomelatine has a distinctive side effect profile — it does not cause the sexual dysfunction, weight gain, or discontinuation syndrome commonly associated with SSRIs and SNRIs.

It is indicated for: the treatment of major depressive disorder (MDD) in adults.

How to take this medicine

The starting dose is one 25 mg tablet taken once daily at bedtime. After 2 weeks, the dose may be increased to 50 mg (two 25 mg tablets) at bedtime if response is insufficient. Always take at bedtime — agomelatine's melatonergic mechanism is tied to the evening circadian rhythm. Do not take in the morning. Swallow whole with water.

Always take at bedtime — this is essential for the medicine to work with your body's natural sleep/wake cycle.

Do not take with alcohol — severe hepatotoxicity risk.

Liver function tests are MANDATORY before starting and during treatment — do not skip blood tests.

Possible side effects

Frequency

Side Effect

What to Do

Very Common (>10%)

Headache

Usually mild; take paracetamol if needed.

Very Common (>10%)

Dizziness

Take at bedtime; avoid driving until stabilised.

Very Common (>10%)

Nausea

Usually mild and transient; improves after first 2 weeks.

Very Common (>10%)

Somnolence / fatigue

Intended to improve sleep quality; usually beneficial.

Common (1–10%)

Elevated liver enzymes (hepatotoxicity)

MANDATORY liver function monitoring — see warning box.

Common (1–10%)

Migraine

Report recurrent severe headaches to your doctor.

Common (1–10%)

Anxiety, irritability

Report mood changes; dosage review may be needed.

Common (1–10%)

Abdominal pain / diarrhoea / constipation

Usually mild; ensure good hydration.

Uncommon

Hallucinations, agitation, mania

Report to psychiatrist / doctor immediately.

Rare

Severe hepatitis, liver failure

Stop immediately and seek urgent medical attention if jaundice, dark urine, or severe right-sided abdominal pain develop.

CRITICAL HEPATOTOXICITY WARNING:

Agomelatine can cause serious liver injury including hepatitis, liver failure and death.

MANDATORY liver function tests (ALT, AST, bilirubin) BEFORE starting, then at 3, 6, 12, and 24 weeks, and thereafter if clinically indicated.

Do NOT prescribe to patients with pre-existing hepatic impairment or transaminases > 3 x ULN.

STOP agomelatine immediately if ALT/AST exceeds 3 x ULN during treatment — do not wait for the next scheduled blood test.

ABSOLUTELY AVOID alcohol during treatment — alcohol substantially increases hepatotoxicity risk.

Patients should be counselled to report any symptoms of liver injury: dark urine, jaundice (yellow skin/eyes), abdominal pain, fatigue, nausea.

Contraindications

Agomelatine must not be used in: hepatic impairment (Child-Pugh A, B, or C) or transaminases > 3 x ULN at baseline; patients taking strong CYP1A2 inhibitors (fluvoxamine, ciprofloxacin); known hypersensitivity to agomelatine or excipients; lactose intolerance (contains lactose); patients under 18 (not indicated); or patients with dementia.

Drug interactions

       Strong CYP1A2 inhibitors (fluvoxamine, ciprofloxacin): CONTRAINDICATED — dramatically increase agomelatine plasma levels and hepatotoxicity risk.

       Moderate CYP1A2 inhibitors (propranolol, grepafloxacin, enoxacin): use with caution — increased agomelatine exposure.

       CYP1A2 inducers (rifampicin, carbamazepine, smoking): reduce agomelatine levels — reduced efficacy.

       Alcohol: ABSOLUTELY CONTRAINDICATED — severe additive hepatotoxicity risk.

Storage

Store at room temperature below 30°C. Keep in original blister packaging. Keep out of reach of children. Do not use after expiry date.

Prescription requirement

PRESCRIPTION-ONLY MEDICINE (POM) — Prescribed by a psychiatrist or physician experienced in depression management.

Liver function monitoring is mandatory at defined intervals and is a prescribing requirement, not optional.

Guidance for patients & caregivers

Agomelatine has a very different mechanism to SSRIs and SNRIs — rather than simply boosting serotonin, it works with your body's natural melatonin system to restore healthy sleep-wake rhythms while also lifting mood. For patients who have experienced sexual dysfunction, significant weight gain, or discontinuation syndrome with SSRIs, agomelatine can be a very well-tolerated alternative.

Liver function testing before and during treatment is not optional — it is essential for your safety. Keep your blood test appointments. If you develop yellow eyes or skin, dark urine, or pain in the right upper abdomen, stop the tablet and go to your doctor immediately.

Avoid alcohol completely during treatment — even moderate alcohol consumption significantly increases the risk of liver damage with agomelatine.

Pharmacist & prescriber notes

Agomelatine's unique mechanism results in a distinctive clinical profile: no weight gain, no sexual dysfunction, no discontinuation syndrome (can be stopped without tapering), and no QT prolongation — significant advantages over SSRIs in patients where these effects are problematic.

The mandatory LFT monitoring schedule is: before starting, then at weeks 3, 6, 12, 24. Reinitiation after a gap also requires fresh LFT baseline. The 25 mg dose is the starting dose; 50 mg (2 tablets) is the maximum dose.

Hepatotoxicity risk: estimated at <1% but includes severe outcomes; do not underestimate. Prescribers should document LFT results in records at each monitoring point. Agomelatine is not associated with suicidality — its safety profile in this regard appears favourable compared to some antidepressants.

10  Frequently asked questions

Why must I always take it at bedtime?

Agomelatine's mechanism is designed to work with your body's evening melatonin surge to resynchronise your sleep-wake cycle and restore healthy sleep architecture. Taking it in the morning or at midday will significantly reduce its effectiveness.

What should I do if I miss a dose?

Take it the following bedtime as usual. Do not double up. If you miss several doses, speak to your doctor before restarting — a fresh liver function test may be required.

Can I drink alcohol while taking Valdoxan?

No, you must completely avoid alcohol. The combination of agomelatine and alcohol significantly increases the risk of serious liver damage. This is one of the most important restrictions with this medicine.

How long before I notice improvement in my depression?

Like most antidepressants, agomelatine takes 2–4 weeks to produce noticeable mood improvement. Sleep quality often improves sooner — within the first 1–2 weeks — which itself can benefit mood and energy levels.

Do I need to taper the dose when stopping?

Unlike SSRIs, agomelatine does not require gradual tapering. It can be stopped without discontinuation syndrome. However, always discuss stopping with your doctor rather than stopping abruptly without advice.


Customer Feedback


Recently Viewed