4.1. Therapeutic indications

Levocarnitine Paediatric 30% Oral Solution is indicated for the treatment of primary and secondary carnitine deficiency in children of under 12 years, infants and newborns.

4.2. Posology and method of administration

Posology

Children under 12 years, infants and newborns

It is advisable to monitor therapy by measuring free and acyl carnitine levels in both plasma and urine.

The management of inborn errors of metabolism

The dosage required depends upon the specific inborn error of metabolism concerned and the severity of presentation at the time of treatment. However, the following can be considered as a general guide.

An oral dosage of up to 200mg/kg/day in divided doses (2 to 4) is recommended for chronic use in some disorders, with lower doses sufficing in other conditions. If clinical and biochemical symptoms do not improve, the dose may be increased on a short-term basis. Higher doses of up to 400mg/kg/day may be necessary in acute metabolic decompensation or the i.v. route may be required.

Haemodialysis - maintenance therapy

If significant clinical benefit has been gained by a first course of intravenous Levocarnitine then maintenance therapy can be considered using 1g per day of Levocarnitine orally. On the day of the dialysis oral Levocarnitine has to be administered at the end of the session.

Maximum dose for children is 1g daily if used as a maintenance therapy for secondary deficiency in dialysis patients

Method of administration

For oral administration only. The Paediatric Solution can be drunk directly or diluted further in water or fruit juices.

4.3. Contraindications

Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.

4.4. Special warnings and precautions for use

While improving glucose utilisation, the administration of levocarnitine to diabetic patients receiving either insulin or hypoglycaemic oral treatment may result in hypoglycaemia. Plasma glucose levels in these subjects must be monitored regularly in order to adjust the hypoglycaemic treatment immediately, if required.

The safety and efficacy of oral levocarnitine has not been evaluated in patients with renal insufficiency. Chronic administration of high doses of oral levocarnitine in patients with severely compromised renal function or in end stage renal disease (ESRD) patients on dialysis may result in an accumulation of the potentially toxic metabolites, trimethylamine (TMA) and trimethylamine-N-oxide (TMAO), since these metabolites are usually excreted in the urine. This situation has not been observed following intravenous administration of levocarnitine.

There have been very rare reports of International Normalised Ratio (INR) increased in patients treated concomitantly with levocarnitine and coumarinic drugs. See section 4.5 'Interactions' and Section 4.8 'Undesirable Effects'.

Excipients

The 30% oral solution contains sorbitol. Sorbitol is defined as non-cariogenic and this product can be considered as sugar-free. This medicinal product contains 200 mg of 70% sorbitol solution in each 2ml dose which is equivalent to 100 mg/ml. The additive effect of concomitantly administered products containing sorbitol (or fructose) and dietary intake of sorbitol (or fructose) should be taken into account. The content of sorbitol in medicinal products for oral use may affect the bioavailability of other medicinal products for oral use administered concomitantly. Patients with hereditary fructose intolerance (HFI) should not take this medicinal product.

The 30% oral solution contains Sodium propyl hydroxybenzoate (E217) and

Sodium methyl hydroxybenzoate (E219). It may cause hypersensitivity (anaphylactoid) reactions (possibly delayed).

4.5. Interaction with other medicinal products and other forms of interaction

There have been very rare reports of International Normalised Ratio (INR) increased in patients treated concomitantly with levocarnitine and coumarinic drugs (see Section 4.4 'Special Warnings and Precautions' and Section 4.8 'Undesirable Effects'). INR – or other appropriate test of coagulation – should be checked weekly until they become stable, and monthly thereafter, in patients taking such anticoagulants together with levocarnitine.

4.6. Fertility, pregnancy and lactation

Pregnancy

Reproductive studies were performed in rats and rabbits. There was no evidence of a teratogenic effect in either species. In the rabbit but not in the rat there was a statistically insignificant greater number of post implantation losses at the highest dose tested (600mg/kg daily) as compared with control animals. The significance of these findings in man is unknown. There is no experience of use in pregnant patients with primary systemic carnitine deficiency.

Taking into account the serious consequences in a pregnant woman who has primary systemic carnitine deficiency stopping treatment, the risk to the mother of discontinuing treatment seems greater than the theoretical risk to the foetus if treatment is continued.

Breast-feeding

Levocarnitine is a normal component of human milk. Use of levocarnitine supplementation in nursing mothers has not been studied.

4.7. Effects on ability to drive and use machines

None known.

4.8. Undesirable effects

Adverse reactions from any source are listed in the table below by MedRA system organ class. Within each system organ class, the adverse drug reactions are ranked by frequency. Within each frequency grouping, adverse reactions are ranked in order of decreasing seriousness. In addition the corresponding frequency category for each adverse drug reaction is based on the following conventions: very common (≥1/10); common (≥1/100, <1/10); uncommon (≥1/1,000, <1/100); rare (≥1/10,000, <1/1,000); very rare (<1/10,000).

SYSTEM ORGAN CLASS

FREQUENCY

ADVERSE REACTION

Gastrointestinal disorders

Very rare

Vomiting

Nausea

Diarrhoea

Abdominal cramp

General disorders and administration site conditions

Very rare

Body odour

Investigations

Very rare

International Normalised Ratio increased *

* There have been very rare reports of International Normalised Ratio (INR) increased in patients treated concomitantly with levocarnitine and coumarinic drugs (acenocumarol and warfarin) –see Section 4.4 'Special Warnings' and Section 4.5 'Interactions'.

Decreasing the dosage often diminishes or eliminates drug related patient body odour or gastro-intestinal symptoms when present. Tolerance should be monitored very closely during the first week of administration and after any dosage increase.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme - Website:www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.

4.9. Overdose

There have been no reports of toxicity from levocarnitine overdosage. Overdosage should be treated with supportive care.