SWINOL Tablet Ref.[115627] Active ingredients: Flunitrazepam

Source: Registered Drug Product Database (NG)  Publisher: SWISS PHARMA NIGERIA LTD, 5 Dopemu Road, Agege, Lagos, Nigeria

4.3. Contraindications

  • Myasthenia gravis
  • Use of this drug in patients with known hypersensitivity to flunitrazepam or to any of the components of the product
  • Hypersensitivity to benzodiazepines
  • Severe respiratory insufficiency
  • Sleep apnea syndrome children
  • Severe hepatic insufficiency

4.4. Special warnings and precautions for use

Benzodiazepines require special precaution if used in the elderly, during pregnancy, in children, in alcohol- or drug-dependent individuals, and in individuals with comorbid psychiatric disorders.

Impairment of driving skills with a resultant increased risk of road traffic accidents is probably the most important adverse effect. This side-effect is not unique to flunitrazepam but also occurs with other hypnotic drugs. Flunitrazepam seems to have a particularly high risk of road traffic accidents compared to other hypnotic drugs. Extreme caution should be exercised by drivers after taking flunitrazepam.

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

Benzodiazepine

The risk or severity of CNS depression can be increased when Flunitrazepam is combined with 1,2-Benzodiazepine.

Abacavir

The metabolism of Abacavir can be decreased when combined with Flunitrazepam

Abametapir

The serum concentration of Flunitrazepam can be increased when it is combined with Abametapir.

Abatacept

The metabolism of Flunitrazepam can be increased when combined with Abatacept.

Abrocitinib

The metabolism of Abrocitinib can be decreased when combined with Flunitrazepam.

Acemetacin

The metabolism of Acemetacin can be decreased when combined with Flunitrazepam.

Acenocoumarol

The metabolism of Flunitrazepam can be decreased when combined with Acenocoumarol.

Acetaminophen

Flunitrazepam may increase the hepatotoxic activities of Acetaminophen.

Acetazolamide

The risk or severity of CNS depression can be increased when Acetazolamide is combined with Flunitrazepam.

Acetohexamide

The metabolism of Flunitrazepam can be decreased when combined with Acetohexamide.

Acetylsalicylic acid

The metabolism of Flunitrazepam can be decreased when combined with Acetylsalicylic acid.

4.6. Pregnancy and lactation

Pregnancy

There is no evidence as to drug safety in human pregnancy, nor is there evidence from animal work that it is free from hazard. Do not use during pregnancy, especially during the first and last trimesters, unless there are compelling reasons.

If the product is prescribed to a woman of childbearing potential, she should be warned to contact her physician regarding discontinuance of the product if she intends to become or suspects that she is pregnant.

Administration of benzodiazepines in the last trimester of pregnancy or during labour has been reported to produce irregularities in the foetal heart rate, and hypotonia, poor sucking, hypothermia and moderate respiratory depression in the neonate.

Infants born to mothers who took benzodiazepines chronically in the latter stages of pregnancy may have developed physical dependence and may be at some risk of developing withdrawal symptoms in the postnatal period.

Breast-feeding

Since benzodiazepines are found in the breast milk, the use of Swinol in mothers who are breast-feeding should be avoided.

4.7. Effects on ability to drive and use machines

Patients should be advised that, like all medicaments of this type, Swinol may modify patients' performance at skilled tasks. Sedation, amnesia, impaired concentration and impaired muscle function may adversely affect the ability to drive or use machinery. If insufficient sleep duration occurs, the likelihood of impaired alertness may be increased. Patients should further be advised that alcohol may intensify any impairment, and should therefore be avoided during treatment.

This medicine can impair cognitive function and can affect a patient’s ability to drive safely. This class of medicine is in the list of drugs included in regulations under 5a of the Road Traffic Act 1988. When prescribing this medicine, patients should be told:

  • The medicine is likely to affect your ability to drive
  • Do not drive until you know how the medicine affects you
  • It is an offence to drive while under the influence of this medicine
  • However, you would not be committing an offence (called ‘statutory defence’) if:
    • The medicine has been prescribed to treat a medical or dental problem and
    • You have taken it according to the instructions given by the prescriber and in the information provided with the medicine and
    • It was not affecting your ability to drive safely

4.8. Undesirable effects

Adverse effects of flunitrazepam include dependency, both physical and psychological; reduced sleep quality resulting in somnolence; and overdose, resulting in excessive sedation, impairment of balance and speech, respiratory depression or coma, and possibly death. Because of the latter, flunitrazepam is commonly used in suicide. When used in late pregnancy, it might cause hypotonia of the fetus.

Dependence

Flunitrazepam, as with other benzodiazepines, can lead to drug dependence. Discontinuation may result in benzodiazepine withdrawal syndrome, characterised by seizures, psychosis, insomnia, and anxiety. Rebound insomnia, worse than baseline insomnia, typically occurs after discontinuation of flunitrazepam even from short-term single nightly dose therapy.

Paradoxical Effect

Flunitrazepam may cause a paradoxical reaction in some individuals, including anxiety, aggressiveness, agitation, confusion, disinhibition, loss of impulse control, talkativeness, violent behavior, and even convulsions. Paradoxical adverse effects may even lead to criminal behaviour.

Hypotonia

Benzodiazepines such as flunitrazepam are lipophilic and rapidly penetrate membranes and, therefore, rapidly cross over into the placenta with significant uptake of the drug. Use of benzodiazepines including flunitrazepam in late pregnancy, especially high doses, may result in hypotonia, also known as floppy baby syndrome.

Flunitrazepam impairs cognitive functions. This may appear as lack of concentration, confusion and anterograde amnesia—the inability to create memories while under the influence. It can be described as a hangover-like effect which can persist to the next day. It also impairs psychomotor functions similar to other benzodiazepines and nonbenzodiazepine hypnotic drugs; falls and hip fractures were frequently reported. The combination with alcohol increases these impairments. Partial, but incomplete tolerance develops to these impairments.

Other adverse effects include:

  • Slurred speech
  • Gastrointestinal disturbances, lasting 12 or more hours
  • Vomiting
  • Respiratory depression in higher doses

6.2. Incompatibilities

Not applicable.

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