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Table 2 Low drug serum concentrations reported in different types of patients

From: Treating tuberculosis with high doses of anti-TB drugs: mechanisms and outcomes

Types of patients

Mechanisms

References

Common pulmonary TB with low-dose prescription

Some patients are underdosed even at standard doses

[75, 121,122,123,124]

Fixed-dose combination with at least one low drug level in the serum

[14, 15, 82, 125]

Patients with slow response to TB treatment

Low serum level of Cmax 2 h post-dose

[126]

Patients with difficult TB

Difficult to increase the drug serum level

[106]

Patients with TB and HIV

Poor exposure to anti-TB drugs

[127, 128]

Interaction between anti-HIV and anti-TB drugs

[129]

Patients with TB and diabetes mellitus

Decreased exposure to anti-TB drugs

[130]

Differences in hepatic induction

[131]