Prednisolone in Bell’s Palsy: A Pharmacovigilance-Based Assessment of Adverse Drug Reaction

His identity and uniqueness is highly connected with a human face. Facial expression is vital in expression emotions and social interaction and therefore any facial muscle malfunction in addition to physical disability causes social and psychological discomfort [1]. Bell palsy is an acute -onset peripheral facial neuropathy and it is one of the most common causes of lower motor neuron facial paralysis. In all cases of facial paralysis, Bell involved palsy in 60-70 percent of cases. The incidence in both genders is equal with 7-40 cases per 100,000 population every year. The etiology is idiopathic but highly correlated with some viral infection, which leads to nerve inflammation with focal edema and demyelination, as well as ischemia. In different researches, some risk factors augment blood sugar [2], blood pressure out of control, extreme pre-eclampsia [3], migraine [4], and exposure to radiations [5] facilitate the pathologic mechanisms and predispose a person to palsy. The weakness may be total or partial and can be related to numbness, slight discomfort, increased sound sensitivity and taste change. It is a diagnosis of exclusion that is mostly established through physical examination. The distinction between a central and a peripheral lesion can be found with an introductory investigation of the neuroanatomy of the nerve. Due to the dissimilarity of the management in different etiology, this distinction is essential. The antivirals are questionably useful; hence, they are mainly recommended with corticosteroids. Patients with signs of improvement in the first three weeks of developing symptoms have more chances of full recovery; the earlier the cure starts, the less likely they are to develop complications and residual paraesthesia’s. Recurrence can be seen in four to 14 percent of the patients, 36 percent of which develop palsy on the same side [6].

• Clinical presentation:

The symptoms occur abruptly, and their peak is achieved in 48-72 hours and ranges. to slight weakness of the muscles of the ipsilateral side, up to severe paralysis. Bell’s palsy symptoms. consist of the inability to close the eye or to blink, wrinkle the lips or elevate the mouth corner displays features. as drooping of one-half face, ipsilateral eyebrow drooping, flatten nose labial fold, ipsilateral pain. around the ear or hearing loss, dry mouth or dry eye as Figure 1 displays [7]

• The other symptoms include: - hyperacusis due to nerve fibre rupture in the stapedius muscle, alterations. in palate, and parched eyes with parasympathetic malady. Some patients report facial paraesthesia, which is usually motor symptoms misinterpreted as sensory alteration and present with sensory or hearing loss [8].
• clinical examination and diagnosis: -

Neurologic and general examination including ear examination, ophthalmological examination, and skin and parotid gland, thought to be covered in the clinical study [9]. Herpes zoster can be suspected in case of any blisters or scabbing around the ear referred to as Ramsay-Hunt syndrome which. can lead to hearing loss and also facial nerve palsy. The interview with the patient can indicate the presence of the following. minor manifestations of the weak and give secondary data [10]. Evaluation of such patients must be done systematically. Examiner must notice facial. facial expressions and movements of the test face such as forehead wrinkling (temporal branch), eye closure capability. puffing of face (mandibular), symmetry of smile, screwing up eyes (zygomatic branch), wrinkling, tightly. nose (buccal). House-Brackmann can be used to determine the degree and prognosis of facial nerve palsy. grading system. It has six grades as indicated in Table 1 wherein Grade 1 implies no paralysis and Grade 6 implies. complete paralysis [11].

Table 1: House - Brackmann facial nerve grading system [11]

• Treatment: -

The principal objective of the treatment during the acute treatment of bell’s palsy shall hasten convalescence and keep back eye complications. Immediate action should commence in order to prevent the viral replication and its impact on the future. Physiological processes which influence the facial nerve. It also requires physiological support and fir this is why the patients might need frequent follow up.

• Prednisolone:

Prednisolone is a synthetical glucocorticoid that is the gold standard drug in Bell’s palsy [12]. Its most valuable use is its strong anti-inflammatory and immunosuppressive effect. Prednisolone lowers the compression of the nerve and postpones axonal loss by decreasing the swelling of the facial nerve in the fallopian canal. [13], [14]

• Mechanism of action:

It is the genomic and non-genomic effects of prednisolone that determine its therapeutic efficacy in this scenario.

1. Anti-inflammatory Response:

It suppresses the release of inflammatory mediators such as prostaglandins and leukotrienes via the induction of lipocortin’s which suppress phospholipase A2 [15].

2. Edema Reduction:

It works by stabilizing the capillary membranes and hence minimizing fluid extravasation, thereby lowering the pressure on the nerve fibres [16].

3. Immune Modulation:

It inhibits the movement of polymorphonuclear leukocytes and reverses the elevated capillary permeability [15], [14].

• Clinical significance:

The administration of oral corticosteroids immediately after the symptoms have been experienced should be highly encouraged by clinical guidelines, including those provided by the American Academy of Neurology (AAN) [17]. Rapid administration is considerably related with:

• Raised percentages of full-face functional recovery [12], [14].
• Less chance of synkinesis (sphincter movements) [12].
• Reduction of time interval of recovery [17], [15].

• ADR Report of prednisolone:

Many different brands are available in the Market use the prednisolone as their active ingredient. We have taken four different brands of the drug prednisolone

1. Prednisolone (reference)
2. Prednisolone v
3. Prednisolone Ivax
4. Prednisolone rpg
   1. Introduction:

This paper evaluates the safety of Prednisolone all over the world and the adverse drug reactions (ADR) reports on four commercials of it; Prednisolone (Reference Group), Prednisolone V, Prednisolone Ivax and Prednisolone RPG. An example of synthetic corticosteroid is prednisolone, primarily used because it has a high potency in terms of anti-inflammatory and immunosuppressive properties. To increase patient safety in different forms of various brand formulations, clinical pharmacy and regulations regarding monitoring of the mentioned ADRs are needed.

1. 2. Methodology and data source:

The data used in this report was compiled using the WHO Global Database of individual case Safety Report (VigiBase) which can be accessed through VigiAccess portal. Even though a number of brands were requested, a homogenous aggregate data were received in the process of search, implying that all global indicators of pharmacovigilance of such versions are largely determined by the active drug ingredient (API) of Prednisolone.

1. Total individual safety reports (ICSRs): 98,772
2. Database search date: March 2026.
   3. Data Description: Table 1, shows, the most common ADRs are linked to the Infections and Infestations (14%). This is a direct pharmacological effect caused by the immunosuppressive effect of the drug. Other important clinical issues when using long-term Prednisolone therapy are gastrointestinal disorders (10%) and Skin disorders (7%) [18].