tramadol can be categorised as non-mutagenic Figure 3 tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic Table 2 tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic Figure 2 Table 1 tramadol can be categorised as non-mutagenic Figure 3 tramadol can be categorised as non-mutagenic Table 1 tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic Table 2 tramadol can be categorised as non-mutagenic Table 1 tramadol can be categorised as non-mutagenic Table 1 tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic Figure 2 tramadol can be categorised as non-mutagenic tramadol can be categorised as non-mutagenic